Optimization - temporary goal

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temporary goal

Printed From: Design Simulation Technologies
Category: DST Products
Forum Name: Optimization
Forum Description: Topics related to using SimWise 4D for Optimization
URL: http://forums.design-simulation.com/forum_posts.asp?TID=6
Printed Date: Mar 26 2026 at 5:57pm
Software Version: Web Wiz Forums 12.03 - http://www.webwizforums.com

Topic: temporary goal

Posted By: Healme
Subject: temporary goal
Date Posted: Jan 06 2021 at 5:20am

How do I define a timed goal of a meter that is only valid or observed between 2 and 3 seconds of my simulation? Outside this time window, the goal or constraint is not considered.

if(2 < time < 3,output[4].y3,0)

Assuming that the output[4].y3 is always significantly > 0 and is to be minimised, how can the optimiser then only optimise within this time window? Otherwise, 0 would always be the best result, because it is present before 2 s and after 3 s.

Replies:

Posted By: Healme
Date Posted: Sep 09 2024 at 3:13am

There is a simple solution. Create a meter that only displays valid values during the relevant time. Outside this time, the meter shows 0 or another constant value which fits best to your optimization needs. Then use this meter as an optimization goal. For the problem described above, you can create a meter with the following formula:

if(and(time>=2,time<=3),output[4].y3,0)

Now minimize the maximum of this meter, that's it.