基于模块化设计的特种车辆减振降噪技术研究

特种车行驶路况复杂,道路崎岖,环境恶劣,其舒适性严重影响成员的生理和心理状态,所以特种车的减振降噪问题,已成为目前的研究热点之一.然而,实际工程中针对某一辆特种车进行单独的减振降噪设计,不仅耗时长,效率低,而且通用性差,成本高.针对这一问题,开展特种车减振降噪技术研究,以特种车为研究对象,用模块化设计的方法设计模块材料、厚度、尺寸及黏贴方法,以及与车体、发动机支撑等的匹配关系,形成系列化减振降噪措施,实现特种车减振降噪的模块化和通用化,可满足不用车型不同需求的模块化结构元件,降低设计和加工成本.仿真结果和路面测试结果表明了该技术的减振降噪效果,验证了模块化设计方法的有效性.论文提出的方法可为特种车辆的减振降噪措施提供有益的参考,具有重要的理论价值和工程实际意义.

Study on Vibration Control and Noise Reduction of Special Vehicle Based on Modularized Design

Modern special vehicles run usually in complex condition with bumpy road and bad environment. Due to the effect of ride comfort problem on body and mind state of the drivers, the study on vibration reduction and noise reduction of the special vehicle have been paid attention. To solve the problems existing in the study, including the variety of special vehicle, a long research time, high cost for single special car and low efficiency, a modular design method was proposed to design module material, thickness, size,assembly scheme and the matching relationship between car body, engine and support for the special vehicle. Taking special vehicle as study objective, a series of schemes was formed based on the modular design method for the vibration reduction and noise reduction to realize the modularization and generalization of different vehicle with lower design and processing costs. Simulation and road test results show the effect of vibration and noise reduction and the effectiveness of the modular design method. The method proposed in this paper can provide a useful reference for the vibration reduction and noise reduction measures of special vehicles.