论文部分内容阅读
提出并解决了利用连杆转角函数谐波成分“数值图谱”进行带有预定时标刚体导引机构尺度综合的计算机方法。在分析了刚体导引位置转角函数与连杆转角函数之间的内在联系及解决了用理论计算方法确定机构实际尺寸、连杆上标线的位置及机构安装尺寸参数关键问题的基础上， 以曲柄摇杆机构为例， 用该方法建立了一个含有２０３５０ 组机构基本尺寸型连杆转角函数的谐波成分数据库。从而可以通过模糊识别方法在已建立的数据库中快速寻找出能够实现给定带有预定时标刚体导引的多个机构， 达到近似实现带有预定时标要求刚体导引机构的尺度综合。给出的算例充分说明了本方法的有效性与优点。
A computer method for scaling the rigid body guidance mechanism with a predetermined time scale using the “numerical map” of the harmonic components of the link angle function is proposed and solved. Based on the analysis of the inherent relations between the rigid body guidance position and the link angle function and the key problems of using the theoretical calculation method to determine the actual size of the mechanism, the position of the superscript line on the connecting rod and the dimension parameters of the mechanism, Crank and rocker mechanism as an example, using this method to establish a database containing the composition of the harmonic components of 20350 groups of basic size type link angle function. Therefore, the fuzzy identification method can be used to rapidly find out a number of mechanisms in a given database that can achieve a given rigid body guidance with a predetermined time scale, and achieve the approximate synthesis of a rigid body guidance mechanism with a predetermined time scale. The given examples fully demonstrate the effectiveness and advantages of this method.