Engineering Asked by SS4 on October 3, 2020
How are automotive engine mounts tuned to behave differently for different frequencies, like they are soft for high frequency low amplitude vibrations and hard for low frequency high amplitude excitations..?
I am aware of active or hydraulic mounts, but want to know how a regular mount is tuned to behave in such a way..?
There are many ways you can modify or design something to reduce resonance, and therefore reduce the risk of it being damaged by vibrations. In order to do so you need to know what frequency range the object will be experiencing, what it's made of, its dimensions, mass, etc., and can then do calculations (which are usually now done by computer software) to determine the resonant frequency of the object. You can then tune the object by changing some of the physical qualities mentioned above in order to move the resonant frequency out of the range of vibrations it might experience.
Answered by UMA on October 3, 2020
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