基于子结构模态综合法的重型牵引车优化设计
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摘要
以某重型牵引车为研究对象,采用子结构建模法,建立了包含各悬挂部件和负载的缩减整车动力学仿真模型.分析了该模型的固有特性,并与传统建模方法建立的整车模型的固有特性结果进行对比,验证了该模型的正确性.利用子结构模态综合法,研究了整车的动力学响应,并与实车实验测试结果进行对比.结合六西格玛优化设计理论,对重型牵引车进行稳健性优化.结果表明:所提的动力学仿真模型能有效模拟整车的动力学特性;重型牵引车在满足设计寿命的前提下,系统的抗干扰能力得到了提升,并且实现了整车的轻量化.
Taking a heavy-duty tractor as the research object and the sub-structure modeling method was used to establish a reduced vehicle dynamics simulation model including each suspension component and load. The intrinsic characteristics of the model were analyzed and compared with the inherent characteristics of the vehicle model established by the traditional modeling method. The correctness of the model was verified. The sub-structure modal synthesis method was used to study the dynamic response of the vehicle,and compared with the actual vehicle test results. Combined with six sigma optimization design theory and the robustness of heavy tractors was optimized. The results showed that the as-proposed dynamic simulation model can effectively simulate the dynamic characteristics of the vehicle. Under the premise of satisfying the design life,the heavy-duty tractor has improved the anti-interference ability of the system and realized the lightweight of the w hole vehicle.
Taking a heavy-duty tractor as the research object and the sub-structure modeling method was used to establish a reduced vehicle dynamics simulation model including each suspension component and load. The intrinsic characteristics of the model were analyzed and compared with the inherent characteristics of the vehicle model established by the traditional modeling method. The correctness of the model was verified. The sub-structure modal synthesis method was used to study the dynamic response of the vehicle,and compared with the actual vehicle test results. Combined with six sigma optimization design theory and the robustness of heavy tractors was optimized. The results showed that the as-proposed dynamic simulation model can effectively simulate the dynamic characteristics of the vehicle. Under the premise of satisfying the design life,the heavy-duty tractor has improved the anti-interference ability of the system and realized the lightweight of the w hole vehicle.
引文
[1]扶原放,金达锋,乔蔚炜.微型电动车车架结构优化设计方法[J].机械工程学报,2009,45(9):210-213.(Fu Yuan-fang,Jin Da-feng,Qiao Wei-wei. Optimization method for a mini electric vehicle frame structure[J]. Journal of Mechanical Engineering,2009,45(9):210-213.)
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[3]王铁,赵震,陈峙.基于灵敏度分析的自卸车车架优化设计[J].太原理工大学学报,2012,43(5):610-614.(Wang Tie,Zhao Zhen,Chen Zhi. Optimization design of truck frame based on the sensitivity analysis[J]. Journal of Taiyuan University of Technology,2012,43(5):610-614.)
[4]任明,孙涛,石永金.基于刚度分析的某商用车车架结构优化[J].机械设计与制造,2017,5(9):5-8.(Ren Ming,Sun Tao,Shi Yong-jin. Structure optimization of the commercial vehicle frame based on stiffness analysis[J].Machinery Design and Manufacture,2017,5(9):5-8.)
[5]Verros G,Natsiavas S. Design optimization of quarter-car models w ith passive and semi-active suspensions under random road excitation[J]. Journal of Vibration and Control,2005,11(11):581-606.
[6]Chatillon M M, Jezequel L, Coutant P. Hierarchical optimization of the design parameters of a vehicle suspension system[J]. Vehicle System Dynamics,2006,44(11):817-839.
[7]莫旭辉,赵宇航,钟志华.基于6σ稳健性方法的汽车行驶平顺性优化[J].中南大学学报,2012,43(11):4286-4292.(Mo Xu-hui,Zhao Yu-hang,Zhong Zhi-hua. Robustness optimization of ride comfort for vehicle based on 6σmethod[J]. Journal of Central South University,2012,43(11):4286-4292.)
[8]Breytenbach B, Els P S. Optimal vehicle suspension characteristics for increased structural fatigue life[J]. Journal of Terramechanics,2011,48(6):397-408.
[9]Khan M M,Awan A U,Liaquat M. Improving vehicle handling and stability under uncertainties using probabilistic approach[J]. IFAC-Papers Online,2015,48(25):242-247.
[10]Ijagbemi C O,Oladapo B I,Campbell H M. Design and simulation of fatigue analysis for a vehicle suspension system and its effect on global warming[J]. Procedia Engineering,2016,159(3):124-132.
[2]扶原放,金达锋,乔蔚炜.惯性释放原理在车架结构优化设计中的应用[J].机械设计与研究,2009,25(1):65-67.(Fu Yuan-fang,Jin Da-feng,Qiao Wei-wei. Application of inertia relief in vehicle frame structure optimization[J].Machine Design and Research,2009,25(1):65-67.)
[3]王铁,赵震,陈峙.基于灵敏度分析的自卸车车架优化设计[J].太原理工大学学报,2012,43(5):610-614.(Wang Tie,Zhao Zhen,Chen Zhi. Optimization design of truck frame based on the sensitivity analysis[J]. Journal of Taiyuan University of Technology,2012,43(5):610-614.)
[4]任明,孙涛,石永金.基于刚度分析的某商用车车架结构优化[J].机械设计与制造,2017,5(9):5-8.(Ren Ming,Sun Tao,Shi Yong-jin. Structure optimization of the commercial vehicle frame based on stiffness analysis[J].Machinery Design and Manufacture,2017,5(9):5-8.)
[5]Verros G,Natsiavas S. Design optimization of quarter-car models w ith passive and semi-active suspensions under random road excitation[J]. Journal of Vibration and Control,2005,11(11):581-606.
[6]Chatillon M M, Jezequel L, Coutant P. Hierarchical optimization of the design parameters of a vehicle suspension system[J]. Vehicle System Dynamics,2006,44(11):817-839.
[7]莫旭辉,赵宇航,钟志华.基于6σ稳健性方法的汽车行驶平顺性优化[J].中南大学学报,2012,43(11):4286-4292.(Mo Xu-hui,Zhao Yu-hang,Zhong Zhi-hua. Robustness optimization of ride comfort for vehicle based on 6σmethod[J]. Journal of Central South University,2012,43(11):4286-4292.)
[8]Breytenbach B, Els P S. Optimal vehicle suspension characteristics for increased structural fatigue life[J]. Journal of Terramechanics,2011,48(6):397-408.
[9]Khan M M,Awan A U,Liaquat M. Improving vehicle handling and stability under uncertainties using probabilistic approach[J]. IFAC-Papers Online,2015,48(25):242-247.
[10]Ijagbemi C O,Oladapo B I,Campbell H M. Design and simulation of fatigue analysis for a vehicle suspension system and its effect on global warming[J]. Procedia Engineering,2016,159(3):124-132.