采用Matlab和误差函数法对轨迹生成四杆机构的优化及仿真

发布时间：2017-12-28 00:23

本文关键词：采用Matlab和误差函数法对轨迹生成四杆机构的优化及仿真　出处：《机械与电子》2016年01期 　论文类型：期刊论文

【摘要】：提出了一个修正的距离误差函数,主要是针对轨迹产生四杆机构的优化,并对优化结果进行仿真。首先,给出了轨迹生成四杆机构的设计变量,给出了所常用的基于欧几里得距离误差的误差函数。同时,对修正的距离误差函数公式进行推导,并由此推出了目标函数的表达式。其次,采取优化的方法得出最佳机构的设计变量参数值。最后,将优化结果的参数值导入到Matlab软件中进行仿真,并且与传统的欧几里得距离误差仿真结果进行了对比。误差仿真曲线表明,采用修正的距离误差函数对轨迹生成的四杆机构所产生的横向及纵向误差较小,效果良好,从而为轨迹生成四杆机构提供了新的研究方法。
[Abstract]:A modified distance error function is proposed, which is mainly aimed at the optimization of the four bar linkage for trajectory generation and Simulation of the optimization results. First, the design variables of the trajectory generation four bar mechanism are given, and the commonly used error function based on Euclidean distance error is given. At the same time, the formula of the corrected distance error function is deduced, and the expression of the objective function is deduced. Secondly, the optimization method is adopted to get the parameters of the design variables of the best mechanism. Finally, the parameters of the optimized results are introduced into the Matlab software for simulation, and the simulation results are compared with the traditional Euclidean distance error simulation results. The error simulation curve shows that the corrected distance error function has less lateral and longitudinal errors for the four bar linkage generated by the trajectory, and the effect is good, which provides a new research method for the trajectory generation of the four bar linkage.
【作者单位】：陕西工业职业技术学院;
【基金】：陕西省教育厅资助项目(13B0306)
【分类号】：TH112
【正文快照】： 0引言当前,国内常用的机构主要有连杆机构、凸轮机构、齿轮机构和链轮机构等。四杆机构是其他多杆机构的基础,在很短的时间内研究多杆机构,必须要熟悉四杆机构。因此,要设计出一个性能优良且满足多种功能要求的四杆机构并不容易。许多研究者都研究了轨迹生成机构的优化综合问

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