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In this paper, a Magneto-Rheological (MR) fluid semi-active suspension system was tested on a off-road vehicle to determine the performance improvements compared to passive suspensions. In the process of suspension design, ride comfort and handing stability are two conflicting considerations. MR fluid dampers are a new class of devices that more suitable for the requirements of automotive applications,...
Ride comfort and handing stability are the two important driving features of vehicle. In the process of suspension design, ride comfort and handing stability are two conflicting considerations. Magneto-rheological(MR) fluid dampers are a new class of devices that more suitable for the requirements of automotive applications, including having very low power requirements. According to different driving...
Based on a cab suspension system of a commercial vehicle, a multi-body dynamic model was built on ADAMS Software for the vibration modal analysis. An Experiment was taken for the verification of the model's accuracy. Through the energy decoupling theory, the cab suspension system was optimized. By analyzing the optimized parameters, the suspension's stiffness and position were determined, which gave...
A multi-body dynamics model of commercial vehicle cab suspension was built with ADAMS through the interactive method. The cab suspension model was simulated with vibration transmission characteristics methods. The model accuracy was testified by comparing with both bench test and road test results. The simulation model was optimized by Sequential Quadratic Programming method, and the stiffness and...
The authors have developed a new type of active engine mount. The active engine mount is consisted of an electromagnetic actuator and an inertia-modulator hydraulic mount. The decoupler motion is controlled by the dynamic force generated by the electromagnetic actuator .The pressure in the upper chamber is changed and as a result the net output force from the mount to the chassis is controlled . The...
The finite element model of a light bus body is established. The vibration modalities are evaluated using finite element software. The simulated results are compared with test date. It shows that the model has represented the vibration characteristics of the original structure. The finite element model for the acoustic cavity is established. The first step modality in the longitudinal direction of...
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