多层次模糊评价理论在平顺性评价中的应用  

Application of Multi Level Fuzzy Evaluation Theory in Ride Comfort Evaluation

作　　者：高洁 张军 GAO Jie;ZHANG Jun(School of Mechanical Engineering,Dalian Jiaotong University,Liaoning Dalian 116028,China;Dalian Technician College of Transportation,Liaoning Dalian 116013,China;School of Mechanical Electronic and Automobile Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]大连交通大学机械工程学院,辽宁大连116028 [2]大连交通技师学院,辽宁大连116013 [3]北京建筑大学机电与车辆工程学院,北京100044

出　　处：《机械设计与制造》2024年第2期149-153,160,共6页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(51775031)。

摘　　要：全面准确的平顺性评价是车辆性能设计和优化的重要依据。基于多层次模糊评价理论,拟合平顺性主观和客观评价等级,建立模糊评价级和模糊关系矩阵,确定测试点位置和试验路况二层次因素集和权重集,建立平顺性综合评价体系。采用仿真试验研究方法,完成复合工况下的平顺性试验,计算车辆的平顺性综合评价值Ez。研究结果表明,试验车辆在复合路面上行驶的平顺性能良好,高速行驶会造成车辆平顺性能明显降低,并对车辆结构和人员健康产生不利影响。此外,仿真试验研究中,复合工况可以很好的反映车辆真实的行驶状态,确保平顺性综合评价的完整性和可靠性。Comprehensive and accurate ride comfort evaluation is an important basis for vehicle performance design and optimization.Based on the multi-level fuzzy evaluation theory,the subjective and objective evaluation grades of ride comfort are fitted,the fuzzy evaluation grade and fuzzy relation matrix are established,the two-level factor set and weight set of test point location and test road condition are determined,and the comprehensive evaluation system of ride comfort is established.The simulation test method is used to complete the ride comfort test under composite conditions,and the comprehensive evaluation value of vehicle ride comfort Ezis calculated.The test results show that the ride comfort of the test vehicle on the composite road is good,high-speed driving will significantly reduce the ride comfort performance of the vehicle,and adversely affect the vehicle structure and personnel health.In addition,in the simulation test,the composite condition can better reflect the real driving state of the vehicle,and ensure the integrity and reliability of the comprehensive evaluation of ride comfort.

关 键 词：平顺性 多层次模糊评价理论 综合评价 仿真试验研究 复合工况 

分 类 号：TH16[机械工程—机械制造及自动化] U461.4[机械工程—车辆工程]