libro de arena 1

8/3/2019 Libro de Arena 1

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Content CONTENTS1 Welcome 1

What is Arenasoftware? ............ ............. ............. ............. ............. ............. ............. ............ .... 1Intended

audience ............. ............. ............. ............. ............. ............. ............. ............. ... 1Where can Igo for help?...................... ............. ............. ............. ............. ............. ............ .... 2

Referencethe user'sguides ............. ............. ............. ............. ............. ............. ............. ............. . 2Exploreourexamples ........... .............. ............ ............. ............. ............. ............. ............ 2Get help ............ .............. ............ ............. ............. ............. ............. ............ 2Use theSMARTslibrary ............. ............. ............. ............. ............. ............. ............. ............. . 2Access theArenaSymbolFactory ............ ............. ............. ............. ............. ............. ............. ............. . 3Get phonesupport ............ ............. ............. ............. ............. ............. ............. ............. . 3Get Websupport ............ ............. ............. ............. ............. ............. ............. ............. . 3Gettraining........................................................................................................ 4Getconsultingservices ............. .............. ............ ............. ............. ............. ............. ............ 4Contact us ............ ............. ............. ............. ............. .............. ............. ......... 4

2 GettingStarted 5

Introduction ...................................................................................................... 5Our task:Analyze ahomemortgageapplicationprocess ............. ............. ............ .............. ............. ............. ............. ............. ..... 5The Arenamodelingenvironment ............ .............. ............ ............. ............. ............. ............. ............ 6

Map yourprocess in aflowchart .......................................................................................................... 7

Crate themortgageapplication entities ............ .............. ............ ............. ............. ............. ............. ............ 7Processtheapplications................................................................................................................ 8

Decide whetherapplications are


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complete ............ ............. ............. ............. ............. ............. ............. ............. .......... 10Disposetheapplications totermnatetheprocess ............ ............. ............. ............. ............. ............. ............. ............ 10What is amodule? ............ .............. ............ ............. ............. ............. ............. .......... 11

Define modeldata .............. ............. ............ .............. ............ ............. .............. ............ ........ 12

Initiatemortgageapplication(Cratemodule) ............. .............. ............ ............. ............. ............. ............. .......... 12Reviewapplication(Process

module) ............. .............. ............ ............. ............. ............. ............. .......... 13What areentities? ............. .............. ............ ............. ............. ............. ............. .......... 13Complete?(Decidemodule) ............. .............. ............ ............. ............. ............. ............. .......... 15Accepted,Returned(Disposemodule) ............. .............. ............ ............. ............. ............. ............. .......... 16Mortgagereviewclerk(Resourcemodule) ............. .............. ............ ............. ............. ............. ............. .......... 17Prepare forthesimulation ............ ............. ............. ............. ............. .............. ............. ....... 18Save thesimulationmodel ............ ............. ............. ............. ............. ............. ............. ............ .. 18

Simlate theprocess ............. ............. ............ .............. ............. ............. ............. ............. ... 18Viewsimulationreports ............ ............. ............. ............. ............. ............. ............. ............ ...... 20

ARENA USER'S GUIDE

Enhance the visualizationprocess..21


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Animate the mortgage review clerk resource ....................................................... 22Plot the number of applications in-process .......................................................... 24What is a model thumbnail? ............................................................................... 25Rerun the simulation ........................................................................................... 25

Next steps ................................................................................................................. 26

3

The Basic Process Panel 27Flowchart modules ................................................................................................... 27

Crate ................................................................................................................. 27Dispose .............................................................................................................. 28Process ................................................................................................................ 29ProcessResource dialog................................................................................. 31Decide ............................................................................................................... 32Batch ................................................................................................................. 33Seprate .............................................................................................................. 34Assign ............................................................................................................... 35Record ................................................................................................................ 36

Data modules ............................................................................................................ 38Entity .................................................................................................................. 38

Queue .................................................................................................................. 39Resource ............................................................................................................ 40Variable .............................................................................................................. 41Schedule ............................................................................................................. 42Set ..................................................................................................................... 44

Calendar schedule information .................................................................................. 45Time Pattem ...................................................................................................... 45Calendar Exceptions .......................................................................................... 47Calendar States .................................................................................................. 48

4 The Advanced Process Panel 49

Flowchart modules .................................................................................................... 49Delay ................................................................................................................. 49

Dropoff ............................................................................................................. 50Hold .................................................................................................................... 50Match .................................................................................................................. 52Pickup .............................................................................................................. 53ReadWrite ........................................................................................................ 53Relase ................................................................................................................ 55Remove ............................................................................................................. 56

Seize ..


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Search ............. ............. ............. ............. ............. ............. ............. ......... 59Signal ........................................................................................................ 60Store ............ .............. ............. ............. ............ ............. ............. ............. ... 61Unstore ............. ............. ............. ............. ............ .............. ............. ........... 61Adjust Variable ................... ............. ............. ............. ............. ............. .... 62

Data modules ............ ............. ............. ............. ............. ............. ............. ......... 63Advanced Set ............................................................................................. 63Expression ................................................................................................. 64Failure ...................................................................................................... 65File ............ ............. ............. ............. ............. ............. ............. ............. .... 66StateSet .................................................................................................. 67Statistic ............. ............. ............. ............. ............. ............. ............. ....... 68Storage ...................................................................................................... 70

5 The Advanced Transfer Panel 71

General flowchart modules..................... ............. ............. ............. ............. ...... 71Enter .............. ............. ............. ............. ............ ............. .............. ............ 71Leave......................................................................................................... 73PickStation ............ ............. ............. ............. ............. ............. ............. ....... 75PickStationStations dialog ............. .............. ............ ............. ............. .... 76Route ....................................................................................................... 77Station ...................................................................................................... 78

Conveyor flowchart modules ............ ............. ............. ............. ............. ............. 79Access ...................................................................................................... 79Convey ............. ............. ............. ............. ............ .............. ............. .......... 80Exit ............. .............. ............. ............. ............ ............. ............. ............. .. 81Start ......................................................................................................... 82Stop ............ .............. ............. ............. ............ ............. ............. ............. .. 82

Transporter flowchart modules ............. ............. ............. ............. ............. ........ 83

Actvate .................................................................................................... 83Allocate ................................................................................................... 83Free ............ .............. ............. ............. ............ ............. ............. ............. .. 85Hall .......................................................................................................... 85Move ........................................................................................................ 86Request ................................................................................................... 87Transport ................................................................................................... 88

Data modules ............ ............. ............. ............. ............. ............. ............. ......... 90Sequence ................................................................................................. 90Conveyor ............ ............. ............. ............. ............. ............. ............. ......... 92Segment ............ ............. ............. ............. ............. ............. ............. .......... 93Transporter................................................................................................. 93


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Distance .................................................................................................... 95Network .................................................................................................... 96Network Link ............. ............. ............ ............. ............. ............. .............. .. 96Activity rea ............................................................................................. 97

6 * The Flow Process Panel 99Flowchart modules ............. ............. ............ .............. ............ .............. ............. 99

Tank ............ .............. ............. ............. ............ ............. ............. ............. .. 99Sensor .................................................................................................... 101Flow ............ .............. ............. ............. ............ ............. ............. ............. . 102Reglate ............. ............. ............. ............. ............. ............. ............. ....... 104Seize Regulator ....................................................................................... 105Relase Regulator ............. ............. ............. ............. ............. ............. ..... 106

Data module ............. ............. ............. ............. ............. ............. ............. ....... 107Regulator Set ............. ............. ............ ............. ............. ............. .............. 107

A Statistical Distributions 109

Beta ............................................................................................................... 111Continuous ............. ............. ............. ............. ............ .............. ............. .......... 112Discrete ......................................................................................................... 114Erlang............................................................................................................ 115Exponential ............ ............. ............. ............. ............. ............. ............. .......... 116Gamma .......................................................................................................... 117Johnson.......................................................................................................... 118Lognormal ..................................................................................................... 119Normal .......................................................................................................... 120Poisson .......................................................................................................... 121Triangular ...................................................................................................... 122Uniform ......................................................................................................... 123Weibull ............. .............. ............. ............. ............ ............. ............. ............. .. 124

B Library Shapes and Symbols 127Arena .plb picture files ........................ ............. ............. ............. ............. ....... 127

Arena .plb librarles ............ ............. ............. ............. ............. ............. ....... 128Arena Symbol Factory ............ ............. ............. ............. ............. ............. ...... 128

The Symbol Factory application ................. ............. ............. ............. ........ 128

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CONTENTS

C Using Visio and Arena

Introduction ............ ............. ............. ........The Visio Process Simulation add-in ...........

Start a drawing ............ ............. ............Place and connect shapes ......................Enter custom properties.........................Add data shapes ............ ............. ..........

Simlate the process map in Arena ............. .Check the drawing ............. ............. ......Transfer the drawing to Arena................Simlate other Visio drawings ...............

Use Visio and Arena in your organization. . .Distribute the Process Simulation add-in .Publish process maps on a Web page. . . .

Index

131

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Welcome

What s Arena software?

Arena software enables you to bring the power of modeling and simulation to yourbusiness. It is designed for analyzing the impact of changes involving significant andcomplex redesigns associated with supply chain, manufacturing, processes, logistics,distribution and warehousing, and service systems. Arena software provides themximum flexibility and breadth of application coverage to model any desired level ofdetail and complexity.

Typical scenarios include:

Detailed analysis of any type of manufacturing system, including material-handlingcomponents

Analysis of complex customer service and customer management systems

Analysis of global supply chains that include warehousing, transportation, andlogistics systems

Predicting system performance based on key metrics such as costs, throughput,cycletimes, and utilizations

Identifying process bottlenecks such as queue build ups and over-utilization of

resources Planning staff, equipment, or material requirements.

In addition to the Arena Professional Edition, Rockwell Software offers a full suite ofproducs to provide enterprise-wide simulation, optimization, and 3D model animation.

Intended audience

Arena software is designed for manufacturing or business process consultants andanalysts and industrial or systems engineers. It is typically deployed as an enterprisebusiness analysis and productivity tool.

We assume that you are familiar with the basic concepts and terms used in these typesof systems. You are interested in improving business or manufacturing productivity

and are responsible for evaluating and predicting the impact of proposed strategic andtactical changes to help improve performance. A familiarity with computers and theMicrosoft Windows operating system is assumed. A familiarity with the conceptsand terms used in simulation is also helpful.

ARENA USER'S CUIDE


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Where can I go for help?

Our commitment to your success starts with the suite of leaming aids and assistance weprovide for Arena. Whether you're new to simulation or a seasoned veteran putting a new tool touse, you'll quickly feel at home with the Arena software.

Reference the user's guides

The documentation set for ths package is comprsed of user manuals for the software andtmplate components, as well as a seprate Variables Guide reference that provides completedescriptions of Arena variables found in the Arena product tmplales.

DOCUMENTCONVENTIONS

Throughout the guides, a number of style conventions are used to helpidentify material. New terms and concepts may be emphasized by use ofitalics or bold; fle men paths are in bold with a (>) separating the entries(e.g., go to Help > Arena HeJp); text you are asked to type is shown inCourier Bold (e.g., in this field, type Work Week), and dialog box andwindow button ames are shown in bold (e.g., click OK).

Explore our examples

Arena is accompanied by a number of sample models that Ilstrate manyof the com-monly used approaches for capturing the essence ofmanufacturing processes. Examples are provided for both job shop andflow shop environments. For a description of and list of Arena'sexamples, go to Help > Arena Help. On the Contents tab, chooseModel Building Basics, and then select Viewing Arena ExampleModels.

Get help

Online help is always at your fingertips! Arena incorporales the latest inhelp features, including What's This? help that displays a brief descriptionof felds in dialogs, context-sensitive help on men and toolbar buttons,

and a help button on each of Arena's modules. Just refer to the Arena helptable of contents and ndex for a list of all help topics.

Use the SMARTs librar/

As you craft models of your own manufacturing processes, use ourSMARTs library to explore how to best use Arena. This suite of tutorialmodels covers topics ranging from modeling resources to anmationtechniques. The library is organized into categories to help you find theright model with ease. When you're wondering how to take the next step inyour model, browse the SMARTs library for a ready-made solution. Fora list of categories and their related SMARTS, go to Help > Arena Help.On the Contents tab, frst click Model Building Basics, and thenLearning Arena with SMART Files.

1 WELCOME

Access the Arena Symbol FactoryArena animations can be enhanced using Arena Symbol Factory's extensive library ofsymbols. These symbols can be used for entity, resource, transporter or global pictures; or asgraphic symbols within a model window. You can copy these symbols directly to the Arena


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model window, add them to your own libraries (.plb files), or add them to any of the Arenapicture library files.

Get phone support

Rockwell Software provides full support for the entire Arena family of producs. Questionsconcerning installation, how modules work, the use of the model editor, and the use of the

software are handled by technical support.ARENA TECHNICAL SUPPORT INCLUDES:

(for users on active maintenance) a technical support holline and e-mail addressstaffed by full-time, experienced professionals

help with installalion problems or questions related to the software's requirements troubleshooting limiled support regarding the inleraction of Arena wilh other programs support of the Arena Object Model, which is used in Microsoft Visual Basic for

Applications

If you cali the support line (1.440.646.5800 for calis originaling in the U.S/Canada), youshould be at your computer and be prepared to give the following informalion:

the product serial number the product versin number the operating system you are using Ihe exact wording of any messages that appeared on your screen a description of what happened and what you were doing when Ihe problem occurred a description of how you tried to solve the problem

Get Web support

In addition to phone support, the Rockwell Automation Customer Support Cenler offersextensive online knowledgebases of tech noles and frequenlly asked questions for support ofnon-urgent issues. These databases are updated daily by our support specialisls.

To receive regular e-mail messages with links to the latest tech notes, software updates, andfirmware updates for the producs Ihal are of inleresl to you or to submit an online supportrequesl, go to support.rockwellautomation.com and select the Online link.

And be sure to check the Arena User Zone seclion of our Web sile atwww.ArenaSimula-lion.com. The User Zone links lo a peer-lo-peer forum on Arena lopics andhas a link lo a


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download page where you can check for possible software updates (patches). If you can't findthe answer you need, contact your local representative or Arena technical support.

Get training

Do you need training? Rockwell Software offers a standard training course comprised o lectureand hands-on workshops designed to introduce you to the fundamental concepts o modeling

with Arena.We also offer customized training courses designed to meet your specific needs. These coursescan be held in our offices or yours, and we can accommodate one person or twenty. Youdesign the course that's right for you! Simply contact our consulting services group to discusshow we can help you achieve success in your simulation efforts.

Get consulting services

Rockwell Automation provides expert consulting and turnkey implementation of the entireArena product suite. Please contact our offices for more information.

Contact us

We strive to help all of our customers become successful in their manufacturing impone ment

efforts. Toward this objective, we invite you to contact your local representative or RockwellSoftware at any time that we may be of service to you.

Support E-mail: [email protected] E-mail: [email protected]

Support phone: 1.440.646.5800 URL:www.ArenaSimulation.com URL:www.rockwellsoftware.com


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Getting Starte

Introduction

While you may not realize it quite yet, you now have the power to transform yourbusiness. Whenever you and others in your organization are wondering "what if...?," youcan look into the future to find the answer.

With Arena, you can:

Model your processes to define, document, and communicate.

Simlate the future performance of your system to understand complex relationshipsand identify opportunities for improvement.

Visualize your operations with dynamic animation graphics.

Analyze how your system will perform in its "as-is" configuration and under a myriadof possible "to-be" alternatives so that you can confidently choose the best way to run

your business.

Our task: Analyze a home mortgage application process

In this chapter, we will examine a simple mortgage application process to Ilstrate howyou can model, simlate, visualize, and analyze with Arena. To begin, we'll look at theprocess of receiving and reviewing a home mortgage application. We will build theflow-chart shown below, introducing you to the process of modeling and simulating withArena.


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Elements. The lower, spreadsheet view display model data, such as time, cost, and other parameters.As we model the mortgage process, well work in all three of Arena.

Map your process in a flowchart

Let's start by examining what we're going to do: Build a flowchart. The word itselfflowchartsuggests two of the main concepts behind modeling and simulation. We'll be building achartalso referred to as aprocess map or a modelthat describes aflow.

This raises a key question in process modeling: What exactly is it that wi/on through the chart?

We're modeling the process of reviewing mortgage applications. These mortgage applica-tions are thetems, referred to as entities, that will move through the process steps in our model. They are the data,whether on paper or in electronic form, that are associated with our client's request for a mortgage. Aswe build the flowchart, it's helpful to think of the process from the perspective of the entity (themortgage application), asking questions like:

Where do the mortgage applications enter the process? What happens to them at each step? What resources are needed to complete work?

First, we'll draw the flowchart representing the mortgage application process. Refer to the MortgageApplication Process Flowchart (shown previously) so you'll know what we'll be creating.

Crate the mortgage application entities

We'll start the flowchart using a Crate module, from the Basic Process panel. This is the startingpoint for the flow of entities through the model.

1. Drag the Crate module from the Basic Process panel into the model window.

A default ame, Crate 1, is given to the module when it's placed. We'll return later to provide amore meaningful description as well as some data to support the simulation.


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ARENA USER'S CUIDE

3. For the Percent True field, type 88 to define the percent of entities that will be treaaiwith a "True" decisin (i.e., will depart through the exit point at the right of the Decidmodule).

Percent Ttue (0-100):

4. Click OK to cise the dialog box.

Accepted, Returned (Dispose module)ln our simple process for reviewing mortgage applications, all the work that we're inta^jested in is done. Now, we'll remove the mortgage applications from the model, terminaing the process with a Dispose module. Because there are two possible outcomes of tb;

mortgage application processapplications can be accepted or returnedwe're usintwo Dispose modules that will count the number of applications under each outcome.

1. Double-click the first Dispose module (connected to the True condition branch of iDecide module) to open its property dialog box, and in the ame field, typeAccepted.

Jame:

16

Accepted

2. Click OK to cise the dialog box.

3. Double-click the other Dispose module to open its property

dialog box. In the Nanfield, type Returned.

ame:

Returned


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ARENA USER'S GUIDE

Next steps

You've succeeded in modeling, simulating,

visualizing, and analyzmg a simple uapplication process. To further exploreArena's capabilities, try solving a few of Iextensions to the process.

1. Add a screening process before theapplication is reviewed.

Applications can be screened in as littleas 15 minutes. Most often, it takes abtminutes for the screening, thoughsometimes it can require as much as 45 iAssign a Receptionist (rate of$6.75/hour) to perform the screening.

What pra of the Receptionist's time willbe used in this task?

2. Return some applications to themortgage applicants after the screening pro

On completion of the screening, 8% ofthe applications are retumed. Also. 1many of the deficient applications arecaught in the new screening, the perceapplications that are accepted in theformal review is raised from 88% to 94Mortgage Review process time isreduced by 10%. By how much did theco reviewing an application change?How about the total time to review applic

To view completed Arena models for themain tutorial and these two extensin i tothe Examples folder and open Mortgage

Applications.doe, Mortgage Extensu* andMortgage Extensin 2.doe.

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libro de arena 1

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