Structure Borne Noise and Vibration Reduction of a Sports Utility Vehicle by Body-Mount Dynamic Stiffness Optimization

2011 ◽  
Author(s):  
Dhanaji Kalsule ◽  
David Hudson ◽  
Yogesh Yeola ◽  
Jakir Bohari
Keyword(s):  
Dynamic Stiffness ◽  
Vibration Reduction ◽  
Noise And Vibration ◽  
Stiffness Optimization ◽  
Noise And Vibration Reduction ◽  
Utility Vehicle

scholarly journals Application of Tuned Vibration Absorbers in Fluid Mounts

2009 ◽  
Vol 16 (6) ◽  
pp. 565-580 ◽  
Author(s):  
Mohammad Jalali Mashayekhi ◽  
Nader Vahdati
Keyword(s):  
Vibration Isolation ◽  
Dynamic Stiffness ◽  
Vibration Reduction ◽  
Vibration Absorbers ◽  
Noise And Vibration ◽  
Tuned Vibration Absorbers ◽  
Cabin Noise ◽  
Model And Simulation ◽  
Isolation Requirements ◽  
Noise And Vibration Reduction

The need to reduce the fuel consumption of vehicles leads to having lighter chassis’ with lighter engines yet maintaining engine power. These new design requirements are in contrast with the vibration isolation requirements. To keep the vehicles light yet provide good cabin noise and vibration isolation, requires a new vibration isolation technology. Fluid mounts have been used in the aerospace and the automotive industry to provide cabin noise and vibration reduction for years. With the use of passive fluid mounts, the highest cabin noise and vibration reduction is achieved at a frequency called “Notch Frequency”. But typical passive fluid mounts have only one notch frequency. So the best cabin noise and vibration reduction is only achievable at one frequency. In this paper, a new fluid mount design in combination with a tuned vibration absorber is proposed. Bond graph modelling technique is used to model the new fluid mount design. The physical model and simulation results are presented. The effect of the natural frequency of the TVA on the dynamic stiffness of the fluid mount is studied.

scholarly journals EXPERIENCE OF ESTIMATION AND REDUCTION OF NOISE AND VIBRATION OF INDUSTRIAL ENTERPRISES OF RUSSIA

Akustika ◽  
2019 ◽  
Vol 32 ◽  
pp. 247-250 ◽  
Author(s):  
Andrey Vasilyev ◽  
Vladimir Sannikov ◽  
Natalia Tyurina
Keyword(s):  
Vibration Reduction ◽  
The Other ◽  
Joint Stock Company ◽  
Operating Characteristics ◽  
Noise Levels ◽  
Stock Company ◽  
Good Efficiency ◽  
Noise And Vibration ◽  
Industrial Enterprises ◽  
Noise And Vibration Reduction

Industrial noise and vibration leads to the workers disease, fatigue breakdown of pipeline and apparatus junction, decreasing of machine operating characteristics etc. According to statistics, amblyacousia and vibration illness takes the first places among all the other professional diseases. Investigations of noise and vibration levels at the operator's positions of "Volgoelectromontazh-1" Joint Stock Company of Russian Federation were done. Measurements were carried out according to existing methods and standards. In total 27 operator's positions were investigated in the main building and in the shop of consumer goods. The results of measurements showed, that for some positions (pendulum saw, cutting-off lathe, presses etc.) there were significant excesses of the sanitary standards of noise levels. Complex of measures of noise reduction was developed, including technical decisions and organizing measures. Results of measures implementation shows good efficiency of noise and vibration reduction.

Passive damping applications for noise and vibration reduction

2001 ◽  
Vol 110 (5) ◽  
pp. 2653-2653
Author(s):  
Conor D. Johnson ◽  
Roger M. Glaese ◽  
Paul C. Janzen
Keyword(s):  
Vibration Reduction ◽  
Passive Damping ◽  
Noise And Vibration ◽  
Noise And Vibration Reduction
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