摘要
针对某4×2轻型快递载货车用户使用场景,通过现场调研确定用户数据采集路线、路面比例、行驶车速、载重情况等,在悬架、车桥、转向、车架系统上根据零部件受力特征及CAE仿真分析所得危险点处布置相应传感器,通过分析车辆在用户典型路面和试验场特征路面上的频响特性,根据损伤等效原理,针对应变通道利用相对损伤谱关联矩阵求解约束条件下的试验场特征路面循环次数,然后考虑试验成本、试验效率,结合专家组评审确定试验方案,最后通过频域损伤直方图和雨流计数法验证试验方案,并最终确定关联用户使用场景的试验场整车耐久性试验行驶规范。
This article is aiming at the customers’usage scenarios of a 4×2 light-duty express truck,and through on-site research to determine the driving routes for the customer data collection,road proportions,driving velocities,and load conditions.According to the force characteristics of parts and components and CAE simulation analysis of risk points in the suspensions,axles,steering and frame systems,where the corresponding sensors are arranged.By analyzing the frequency response of the vehicle on the customers’typical road surface and the test site typical road surface,and according to the principle of damage equivalence,the number of cycles are solved for the test site characteristic pavement under the constraint conditions for the strain channels based on the relative damage spectrum correlation matrix,and then the test costs and test efficiency are considered combined with the review of the expert group to determine the test schemes.Finally,the test schemes are verified by the frequency domain damage histogram and rainflow counting results,also the driving specifications of the vehicle durability tests of the tests on-site are determined by the customers’usage scenarios.
作者
王海宾
赵云达
施亦舟
杨立泽
彭意涛
Wang Haibin;Zhao Yunda;Shi Yizhou;Yang Lize;Peng Yitao(Commercial Vehicle Development Institute,FAW Jiefang Truck Co.,Ltd.,Changchun 130011)
出处
《汽车工程师》
2023年第1期14-23,共10页
Automotive Engineer
关键词
用户使用场景
频响特性
相对损伤谱
关联方法
Customers’usage scenarios
Frequency response characteristic
Relative damage spectrums
Correlation method
