turn on suggestions

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

- Navigation
- Tecnomatix
- Forums
- Blogs
- Knowledge Bases
- Groups

- Siemens PLM Community
- Tecnomatix
- Plant Simulation
- Random Number Stream Logic

Options

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

Solved!
Go to solution

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

09-19-2016 04:53 AM - edited 09-19-2016 04:54 AM

Hallo,

Question in Short: Does the random number stream always start from the first digit when the stochastic variable itself is changed as above, i.e., by assigning new parameters, such as a,b, or c in case of triangular -- or 'mu' and 'sigma' in case of normal?

I am using version 8.2 and so have to manage random number streams myself. I handled this by writing creation controls that allocate unique number streams to all stochastic variables in the model automatically.

However, the ProcTime is supposed to be MU specific and based on a custom MU variable 'Qty'. Basically, there are steel cages filled with parts and so I want to base the ProcTime on the specific number of parts in the steel cage.

To achieve this, I am currently doing the following: Assuming the distribution is triangular, I am calculating 'a', 'b', and 'c' based on 'Qty' and the fixed parameters for a,b,c ProcTimes per piece. Then, I allocate this these numbers to the corresponding SingleProc's stochastic triangular variable. Again, the stochastic variable already has a number stream assigned to it. The hope is that the random number stream will just continue with the new parameters.

If this is not the case, my current procedure isn't working and other ideas are very much appreciated.

Best regards,

Sebastian

Solved! Go to Solution.

1 REPLY

Solution

Solution

Accepted by topic author SebastianE

09-19-2016
05:15 AM

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

09-19-2016 05:12 AM - edited 09-19-2016 05:14 AM

Follow Siemens PLM Software

© 2017 Siemens Product Lifecycle Management Software Inc