Modular adjustable-parameter dynamic vibration absorber and parameter presetting method thereof
A dynamic shock absorber, a modular technology, applied in shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve problems such as poor portability and invariable parameters, and meet the requirements of continuously adjustable quality, The effect of improving portability
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[0030] A dynamic shock absorber, mainly composed of base 1, connecting seat 2, hinge support 3, lever lower arm 4, lever upper arm 6, fine-tuning spring 8, guide rail 12, mass block 13, tray 14, main spring 15, fine-tuning damping 17, main damping 18, parallel hole 24 forms.
[0031] The model of the undamped dynamic shock absorber can be simplified as figure 1 . The original system is simplified to k 1 、m 1 , the damper is simplified to k 2 、m 2 , the vibration frequency of the system is ω. The original single-degree-of-freedom system becomes a two-degree-of-freedom system.
[0032] At this time, according to the system structure, the equation of motion can be obtained as:
[0033] m 1 0 0 m 2 ...
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