摘要
为使结构形式、复合运动复杂的混合臂式高空作业车变幅系统在动态变幅中达到最优效果,对臂架受力分析,借助多目标优化理论定量确定臂架危险位姿。在考虑惯性冲击的情况下以臂架所受振动冲击、油缸流量变化、油缸行程及平台运动突变最小为优化目标,各变幅三铰点位置和油缸直径为设计变量,基于MATLAB优化工具箱中信赖域反射算法对目标函数进行多目标优化并对比优化前后各目标。结果表明,整体平均优化比例达12.57%,此方法能得到更合理的铰点位置和油缸直径,同时也为解决不同臂型高空作业车铰点优化问题提供了一种更加合理的途径。
In order to achieve the optimal effect during the dynamic variance of the mixing-jib overhead working truck with complex structure and compound motion, the force analysis of the jib was determined quantitatively by the multi-objective optimization theory.Taken the vibration shock of the jib,the cylinder flow change,the distance and the platform movement mutation to minimum as optimization goals and the location of the three-point hinge and the cylinder diameter as design variable in the case of inertia impact.Then optimised the objective function based on trust region reflective in MATLAB and compared the previous with the latter goals.The results show that the overall optimization ratio is up to 12.57%.The method which provides a more reasonable way to solve the hinge optimization problem of different mixing-jib overhead working truck can obtain a more reasonable hinge position and cylinder diameter.
作者
高崇仁
孙迪
朱建学
殷玉枫
GAO Chong-ren;SUN Di;ZHU Jian-xue;YIN Yu-feng(College of Mechanical Engineering,Taiyuan University of Science and Technology,Shanxi Taiyuan 030024,China;Henan Jianghe Special Vehicle Co. Ltd.,He’nan Xinxiang 453400,China)
出处
《机械设计与制造》
北大核心
2019年第7期201-205,209,共6页
Machinery Design & Manufacture
基金
中联重科股份有限公司建设机械关键技术国家重点实验室—工程机械可靠性评价系统基础平台关键技术研究(SKLCM2014-3)
关键词
高空作业车
臂架
油缸
多目标优化
Overhead Working Truck
Jib
Cylinder
Multi-Objective Optimization
