结合连续法与数值图谱法的平面四杆刚体导引机构尺度综合  

Dimensional Synthesis of Planar 4-bar Linkage for Rigid-body Guidance by Combining Continuation Method With Numerical Atlases Method

作　　者：芦丹[1] 吴鑫[1] 张彦斌[1] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003

出　　处：《机械制造与自动化》2004年第2期26-29,共4页Machine Building & Automation

基　　金：河南省科技厅自然科学基金项目 ( 0 2 110 62 10 0 )

摘　　要：根据已有的连杆机构尺度综合方法 ,首先用复数法得到四杆机构的刚体导引综合方程组 ,再由连续法得到满足设计要求的精确解。然后经过快速傅立叶变换得到与方程精确解对应的四杆机构连杆转角函数的谐波成分 ,利用这些谐波成分参数 ,通过模糊识别的方法 ,从已建立的四杆机构连杆转角函数谐波特征参数的“数值图谱”中找到更多满足要求的机构。Based on the existing methods of mechanism's dimensional synthesis, equation groups for dimensional synthesis of rigid body guidance of the 4 bar mechanism were gotten by complex numbers method firstly, the solution to meet the request of design are obtained using the continuation method.The harmonic components of coupler rotation angle function of the four bar mechanism which is corresponding to equation solution can be gotten with fast Fourier transfer method.According to these harmonic components, more linkages which are in request can be found by using the method of fuzzy identification from numerical atlases of coupler rotation angle function's harmonic characteristic parameters of the 4 bar linkage. A numerical example is given to prove it.

关 键 词：刚体导引 谐波成分 模糊识别 

分 类 号：TH112[机械工程—机械设计及理论]