Abstract
The object of this paper is to analyze the vehicle structural vibration responses during the step steering simulation test. With computer simulations, confirming the influence from the difference between configurations of components on mid-size electrical bus and tradition one could be possible. The difference of the vibration responses between flexible multi-body model and rigid one would be discussed. Since the wheel base of mid-size bus is longer than passenger car, the deformation of vehicle body more obviously influences the output of vibration response. The operating condition in practical driving can be expressed by flexible model, and the performance prediction of vehicle can be closer to the real vehicle behavior. The difference between the flexible body simulation and rigid body simulation is 1.17%, and the flexible body model is more practical.
Highlights
The design requirements of vehicle handling and comfort are considerably important in the field of vehicle design
The primary power source is replaced by an electric motor, and the motorizing of powertrain system makes body structure changes along with the increased load on the vehicle battery
MATEC Web of Conferences multi-body dynamics simulation based on actual body deformation could affect the behavior of vehicle handling simulation, and it could provide more precisely prediction
Summary
The design requirements of vehicle handling and comfort are considerably important in the field of vehicle design. In order to reduce development time and cost, the prediction of the dynamic characteristics of the designed vehicle is required, so vehicle mathematical model which supports the scientific theory to evaluate the traffic safety and quality of vehicles should be established. The battery weight would change the weight distribution of the vehicle, and cause the impact on handling and comfort during traveling. With CAE's technology, the vehicle dynamic simulation with the overall bus structure could more precisely predict the vehicle behavior during the different maneuver, and improve its handling and comfort. MATEC Web of Conferences multi-body dynamics simulation based on actual body deformation could affect the behavior of vehicle handling simulation, and it could provide more precisely prediction
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