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Article: Calculating G-forces ... adhesive bonding ... cheap picker ... the Search Engineer finds solutions to all your questions, problems, and dilemmas. Occasionally, he could be wrong. But he doubts it.(Ask the Search Engineer)
- Article from:
- Design News
- Article date:
- April 5, 2004
CopyrightCOPYRIGHT 2004 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Dear Search Engineer: How do I calculate and simulate G-forces for FEA?
--S.M., Lombard, IL
Dear S.M.: In ANSYS, you apply an acceleration load with a vector direction opposite of the desired G-force. The value of the acceleration load determines the amount of G-force. So, if you want a vertical down G-force of 2Gs, you apply a vertical up acceleration vector equal to twice the acceleration of gravity, in whatever units you're working with. You have to use units consistently, so you have to be careful that the value of the acceleration is in the same units of L/[T.sup.2]. Try it without any other applied loads at first and checking the total reaction ...