With the development of society, the country has put forward strict requirements for the economy and emission of motorcycles. As the most basic test platform, the small engine platform is of great significance to the improvement of the performance of small engines with relatively backward technical level. According to the small engine parameters, size, performance and other aspects of the requirements, to complete the overall design and layout of the small engine bench, clear the small engine bench simple, easy to install, stability, easy late maintenance and other target functions. According to these target functions to select materials, to construct a simple and safe small engine frame. Compared with the traditional engine platform function is single, the overall design is relatively large, bulky and other problems, the small engine test bench scheme is designed.
The front wheel positioning parameters have a very important influence on the steering performance and handling stability. Based on the structural parameters of a heavy-duty commercial vehicle provided by a main engine factory, the front suspension simulation model is constructed based on ADAMS software, and the motion characteristics of the front wheel positioning parameters and their influence on handling and stability are analyzed, and the optimal design variables are determined. After the optimization function is established, the sample points are obtained through the Latin hypercube experimental design. Finally, under the same working conditions of steady-state rotation and single-lane transformation, the handling and stability of heavy-duty commercial vehicles are optimized, and the data before and after optimization are compared to verify the effectiveness of the optimization method in this study. The optimization method is of great practical significance to the analysis and optimization design of front wheel positioning parameters.
With the advancement of China's modernization, people not only pay attention to the power performance and economy of vehicles, but also pay more attention to the comfort and handling stability of vehicles.The comfort and handling stability of the car mainly depend on the chassis.Suspension system is one of the important components of the vehicle system, which directly affects the handling stability, ride comfort and safety.Therefore, it is necessary to study the optimization and conceence of automobile suspension parameters.This paper establishes the dynamic model of the heavy commercial vehicle suspension based on ADAMS, and analyzes the K & C characteristics of the suspension.The suspension model is also optimized.To optimize the control parameters and mechanical performance of the vehicle suspension and ride comfort of the vehicle has some significance to improve the vehicle comfort and control stability.
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