Abstract
The vibration level of a cab affects the passenger’s ride comfort and safety significantly. It is of great importance to control the vibration level of cabs under various driving conditions. The associated vibration transfer paths of cabs are studied by using a hierarchical analysis method of a parameter index. The multiobjective design analysis is carried out by using the multiparameter joint optimisation design. Further, the optimal control of the cab vibration level is obtained from a full-condition simulation environment. Additionally, a multibody vehicle model is established. The simulation analysis under multiple working conditions is conducted. The optimal parameter distribution of the cab mounting structure was established by analysing the influence of the design parameters and experimental verification. This greatly improves the comfort of the cab.
Highlights
Peoples’ requirements for the safety and comfort of commercial vehicles are becoming more stringent due to an improvement in living conditions
NVH [1,2,3] is an important evaluation index to measure the level of vehicle comfort. is includes the performance impact of vibration, noise, and other related aspects. e vibration of the cab system directly affects the comfort and safety of the vehicle from its direct contact with the body
Commercial vehicles are the main model of logistics transportation and often run for a long distance, at high speeds, and for a long time. erefore, more attention should be paid to the comfort and safety of the vehicle
Summary
Peoples’ requirements for the safety and comfort of commercial vehicles are becoming more stringent due to an improvement in living conditions. E vibration of the cab system directly affects the comfort and safety of the vehicle from its direct contact with the body. Excessive vibration will directly affect the comfort of driving and the physical and mental health of the human body. It will strengthen the wear and tear of cab system parts and reduce the service life of the parts. Many scholars have studied different design methods [7,8,9,10,11] of structural parameters of cab systems to improve cab vibrations, analysing balance, stability, and safety of cab systems. Original methods have a good application effect and convergence for local research objects or limited parameters.
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