做平面运动滚子从动件盘形凸轮机构第Ⅱ类综合问题的广义化研究

摘要/Abstract

摘要：

提出了“狭义、广义第Ⅱ类机构综合问题”的概念;通过建立预备公式、引入“旋浮数轴”概念等，对于一维情形，提出“瞬时/整程区间套”的求解原理和区间套存在性(态)的判定方法，并求解其“劣解/非劣解区间套”和“区间最优解”;对于二维情形，提出“有解区间套”、“整程区域套/机构解全域”的求解原理和区域套存在性(态)的判定方法，并求解其“劣解/非劣解区域套”和“全域最优解”等;基于Visual Basic6.0软件开发了具有可视化、规律发掘功能的通用软件CALRFCY,从而解决了“广义第Ⅱ类机构综合”解的存在性(态)判定及其求解方法的问题。通过两个机构综合实例论证了偏置式机构较正置式机构具有“你无我有,你有我优”的固有潜质和显著优越性。

关键词: 广义, 旋浮数轴, 区间套/区域套, 机构解全域, 非劣解, 最优解

Abstract:

The concepts of special and general class Ⅱ synthesis were put forward. By establishing a coordinate system, introducing the concept of “rotation floating axis”, the general class Ⅱ synthesis of the cam mechanism was derived. For the one dimensional case, the solution of instantaneous and whole nested interval and its existing forms were developed. For the two dimensional case, the solution of “nested interval having solution”, “whole nested region”, “whole mechanism solution” and its exiting forms were developed. And the solution theory of “inferior/non-inferior solution nested region” and “the optimal solution of interval” were presented. Based on Visual Basic 6.0, the visual common software CALRFCY was developed. Lastly, two synthesis examples demonstrate that the offset mechanism is greatly superior to the non-offset mechanism.

Key words: general, rotation floating axis, whole nested interval/region, whole mechanism solution, non-inferior solution nested region, optimal solution

中图分类号:

TH112.2

常勇, 林荣富, 李延平. 做平面运动滚子从动件盘形凸轮机构第Ⅱ类综合问题的广义化研究[J]. 中国机械工程, 2014, 25(5): 669-678.

Chang Yong, Lin Rongfu, Li Yanping. General Class Ⅱ Synthesis of Disc Cam Mechanism with Roller Follower Moving in Planar General Motion[J]. China Mechanical Engineering, 2014, 25(5): 669-678.

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