机构运动分析的解析近似算法  

Analytic Approximation Algorithm for Mechanism Motion Analysis

作　　者：李杰 LI Jie(Sichuan Southwest Vocational Collage of Civil Aviation,Chengdu Sichuan 610400,China)

机构地区：[1]四川西南航空职业学院,四川成都610400

出　　处：《机械研究与应用》2018年第4期48-52,共5页Mechanical Research & Application

摘　　要：用解析法对机构进行动力学分析时,先要对机构进行运动分析,由于传动函数本身有时非常复杂,甚至难于表达,这就使其解析法的应用受到限制。将解析法和数值法想结合的方法,近似地表达了机构运动的传递函数,提出了以傅里叶级数的展开函数作为连杆机构传动函数,并给出了以蒙特卡罗法作为计算傅里叶级数系数的求解方法。由于方法简单,在机械工程中具有较大的应用价值。When analyzing the mechanism with the analytical method,the mechanism motion analysis must be conducted at first; but application of the analytic method is restricted because the function itself is very complex and even hard to express.In this paper,combining the analytic method with the numerical method together,the transfer function of mechanism motion is approximately expressed; the expansion function of Fourier series is proposed as the transmission function of the connecting rod mechanism,and the Monte Carlo method is given as the solution to calculate the Fourier series coefficient. Because the method is simple,it has great application value in the mechanical engineering.

关 键 词：增力机构 概率 傅里叶级数 

分 类 号：TH13[机械工程—机械制造及自动化]