Inventor General Discussion

Inventor General Discussion

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Member
lzsin_125
Posts: 5
Registered: ‎08-04-2012
Message 1 of 7 (359 Views)
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Dynamic Simulation

359 Views, 6 Replies
08-19-2013 07:54 PM

Hi,

I am currently want to run the dynamic simulation of certain mechansim with simulation player. The mechanism is single DOF which consists of a crank and few linkages that controlled by the crank as well. So, when I try to run mechanism with simulation player the whole mechanism run in a very slow mode, it tooks me around 3 to 4 hours to complete few revolution although at the final time I had been set as 1 seconds. However, when I reduced my applied force at the crank to around 0.0X N, the mechanism run faster compared to the previous one. Since 0.0x N is very small and my desire force was 500N, but when I changed, it tooks long time to simulate. May I know what happened on my design actually?

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JDMather
Posts: 26,543
Registered: ‎04-20-2006
Message 2 of 7 (330 Views)

Re: Dynamic Simulation

08-20-2013 03:59 AM in reply to: lzsin_125

Attach your assembly here.

How many time-steps are you calculating?

Do you need to show each slide during calculation?

Please mark this response as "Accept as Solution" if it answers your question.
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Member
lzsin_125
Posts: 5
Registered: ‎08-04-2012
Message 3 of 7 (299 Views)

Re: Dynamic Simulation

08-20-2013 09:47 PM in reply to: JDMather

Hi,

The assemble is as attached.
100 time steps is enough for me already.
ya, I may need to view each slide during calculation.
Thanks.


Regards

Sin

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JDMather
Posts: 26,543
Registered: ‎04-20-2006
Message 4 of 7 (279 Views)

Re: Dynamic Simulation

08-21-2013 03:25 AM in reply to: lzsin_125

Before moving to an advanced topic like Dynamic Simulation you should understand that an assembly file (*.iam) is simply a list of hyperlinks to the part files (*.ipt) and a record of assembly constraints (and DS Joints) and is therefore useless without the ipt files.

Attach your entire assembly here.

Please mark this response as "Accept as Solution" if it answers your question.
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Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015 64-bit
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http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Member
lzsin_125
Posts: 5
Registered: ‎08-04-2012
Message 5 of 7 (259 Views)

Re: Dynamic Simulation

08-21-2013 09:32 AM in reply to: JDMather

Hi JDMather, 

Sorry for that, I have reattached the parts and assembly.


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JDMather
Posts: 26,543
Registered: ‎04-20-2006
Message 6 of 7 (247 Views)

Re: Dynamic Simulation

08-21-2013 12:08 PM in reply to: lzsin_125

Have you installed all Service Packs for 2012?

 

Is there a reason you can't use an Imposed Motion.

 

Right click on Properties of Revolution3 and click on Edit Imposed Motion and Enable a Constant Velocity.

 

Imposed Motion..png

Please mark this response as "Accept as Solution" if it answers your question.
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Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Member
lzsin_125
Posts: 5
Registered: ‎08-04-2012
Message 7 of 7 (210 Views)

Re: Dynamic Simulation

08-22-2013 06:15 PM in reply to: JDMather

Hi JDMather,

 

Ya, it is now perform on what I expect to, Thanks JDMather.

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