Operator working on two machines

Question

question

Ramesh Yadav asked Aug 07 2016 at 6:25 PM Sam Stubbs commented Aug 11 2016 at 3:05 PM

Operator working on two machines

oprtor.fsmThere is a lathe machine, which pulls one part at a time contains the following cycle:

a) Initialize – 2.5 - 4.5 min (uniformly distributed)

b) Machining – 9 - 13 min (uniformly distributed)

c) Cleaning & Removing – 2- 4 min(uniformly distributed)

An operator is needed for cycle 1 and 3, to utilize the operator in his idle time, he is engaged on another single machine which pulls part 2.

Arrival pattern of part 2 is in the following pattern, Inter arrival time – 5-15 min(uniformly distributed)

Lot size – 1

Cycle time of the machine – 1-5 min

How do I use operator in this case.

Thank You.

Software Version:

FlexSim 7.5.4

multiprocessor operator assignment task operator after processing opearator

oprtor.fsm (22.4 KiB)

· 2

______

Cookie preferences

Your privacy is important to us and so is an optimal experience. To help us customize information and build applications, we collect data about your use of this site.

May we collect and use your data?

Learn more about the Third Party Services we use and our Privacy Statement.

Strictly necessary – required for our site to work and to provide services to you

These cookies allow us to record your preferences or login information, respond to your requests or fulfill items in your shopping cart.

YES

Improve your experience – allows us to show you what is relevant to you

These cookies enable us to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we use to deliver information and experiences tailored to you. If you do not allow these cookies, some or all of these services may not be available for you.

YES

NO

Customize your advertising – permits us to offer targeted advertising to you

These cookies collect data about you based on your activities and interests in order to show you relevant ads and to track effectiveness. By collecting this data, the ads you see will be more tailored to your interests. If you do not allow these cookies, you will experience less targeted advertising.

YES

NO

Are you sure you want a less customized experience?

We can access your data only if you select "yes" for the categories on the previous screen. This lets us tailor our marketing so that it's more relevant for you. You can change your settings at any time by visiting our privacy statement

Your experience. Your choice.

We care about your privacy. The data we collect helps us understand how you use our products, what information you might be interested in, and what we can improve to make your engagement with Autodesk more rewarding.

May we collect and use your data to tailor your experience?

Explore the benefits of a customized experience by managing your privacy settings for this site or visit our Privacy Statement to learn more about your options.

Answer 1 · 2016-08-08T15:51:59Z

Sam Stubbs answered Aug 08 2016 at 3:51 PM Sam Stubbs converted comment to answer Aug 11 2016 at 3:05 PM

So you can do the initialize easily, by going into the Processor's properties, and setting up your uniform(2.5,4.5) setup time. Just click the "Use Operators for setup" box and make sure you have an Operator connected to the center port of the Processor.

Getting the Cleaning & Removing time is a little more difficult, since there is no default option for finish times. You can accomplish this by adding a line of code into the task sequence of the operator when loading the item. In the flow tab of the Processor, make sure the "Use Transport" box is selected, then in the dropdown options select "Task Sequence Example_1."

Then click the code button (the little scroll icon near the dropdown menu.) And insert this line of code into the task sequence after the first travel task:

inserttask(ts,TASKTYPE_DELAY,NULL,NULL,uniform(2,4),STATE_UNLOADING);

See image below:

Add this functionality to however many processors you need. I've included an example model below.

operator-setup-finish-example.fsm

processorsetup.png (22.0 KiB)

2016-08-08-09-35-09-processor5-properties.png (25.6 KiB)

insertcode.png (24.2 KiB)

operator-setup-finish-example.fsm (22.9 KiB)

· 3

Ramesh Yadav commented · Aug 08 2016 at 4:29 PM

Thank You Sir

0 ·

Joerg Vogel commented · Aug 11 2016 at 5:45 AM

@Sam Stubbs that method doesn't lead to a right statistic inside the processor and falsifies another state, too, which belongs to the loading state or waiting for transport state.

0 ·

Sam Stubbs ♦ Joerg Vogel commented · Aug 11 2016 at 3:04 PM

I just set the state as Unloading as arbitrary, he can set whatever states he needs to... This was just to show how the effect can be done.

0 ·

Answer 2 · 2016-08-11T05:36:55Z

Joerg Vogel answered Aug 11 2016 at 5:36 AM Sam Stubbs commented Aug 11 2016 at 3:05 PM

You can build a fake object representing your lathe machine. Inside of this container you place two machines right behind in the flow. When the first machine receive an item, it closes the input. When the item leaves the second machine, the input of the first machine is opened again. You can choose which state needs an operator.

· 1

question