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unpredicted joint force behaviour

unpredicted joint force behaviour

unpredicted joint force behaviour

(OP)
Hello !

I have modeled a completely symmetric lift table (), but when i simulate, I have interesting situation where there are joint forces only on the joints which are on left side of table (A, B, C and D) (), whereas corresponding joints on the other side deliver zero. what causes this strange behavior ? I am attaching the *.cmd file if you wish to have an eye upon...


greetings ;)

RE: unpredicted joint force behaviour

I suspect that if you check the run time messages from the solver it says something like 'Read this carefully. Over constrained joints in model. The following degrees of freedom have been released...'

Cheers

Greg Locock


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RE: unpredicted joint force behaviour

(OP)
indeed, but how can i have forces on each joint then


p.s. sorry - im new to MBD analysis...

RE: unpredicted joint force behaviour

(OP)
Im self - educating :( Reading some books and thats all - if you can guide me to good videotutorials / books i will be grateful !!!

RE: unpredicted joint force behaviour

(OP)
...and once again - i want to monitor joint forces on both sides - if i add one more joint, im overconstrainting it - what should i do ?!

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