Ningbo Tuopu Vibro Acoustics Technology Co.

Ningbo, China

Ningbo Tuopu Vibro Acoustics Technology Co.

Ningbo, China
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Shangguan W.-B.,South China University of Technology | Shangguan W.-B.,Ningbo Tuopu Vibro acoustics Technology Co. | Xie X.-X.,South China University of Technology | Ding W.,Ningbo Tuopu Vibro acoustics Technology Co. | And 2 more authors.
Zhendong yu Chongji/Journal of Vibration and Shock | Year: 2011

A method determining frequency response function and road spectrum iteration steps for road simulation test was proposed and discussed here. The hydraulic engine mount (HEM) of a car was taken as a study objective, and the road spectrum exerted on the HEM was acquired in a proving ground. The road spectrum was reconstructed with a remote parameter control technology, and the results showed that the reconstructed road load agrees well with the original one. Also, the method determining the load block sequence was presented and discussed. The durability test for the HEM was conducted with MTS 833 test rig using the method proposed here. It was shown that the proposed method is effective for mount durability test.


Wang X.,South China University of Technology | Shangguan W.,South China University of Technology | Shangguan W.,Ningbo Tuopu Vibro Acoustics Technology Co. | Wang Y.,Ningbo Tuopu Vibro Acoustics Technology Co. | Pan X.,Ningbo Tuopu Vibro Acoustics Technology Co.
Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | Year: 2014

A unified model for calculating torsional vibration of an engine crankshaft with rubber-damped torsional vibration damper (TVD) with n inertia rings is developed. The unified model can be used to describe torsion vibration of an engine crankshaft system with or without TVD. Torsional vibration of an engine crankshaft is calculated for the crankshaft system without TVD, and for the crankshaft system plus one type of TVD with optimized stiffness and damping parameters. Three types of TVD are included in the model: one inertia ring TVD, two inertia ring TVD arranged in serial way, and two inertia ring TVD arranged in parallel way. The calculated results show that forced torsional vibration analysis of an engine crankshaft system under the generic engine firing excitation is necessary to validate the optimized TVD based on conventional method for optimization of stiffness and damping for a dynamic absorber.

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