摘要
当Ball点位于连架杆铰点连线的特殊位形时,给定机架一个定铰点和欲逼近直线上的点及方向角的条件下,采用解析几何法建立机构综合模型求解满足运动学要求的具有三阶密切直线机构全解。为解决综合所得无穷多机构寻优难问题,分析包括直线近似度在内的机构运动学属性并实现机构属性的图形可视化,施加运动学约束,计算可行机构图形解域,引导设计者从中寻找全局最优机构解,并通过综合示例验证机构综合模型与性能分析方法的正确性和可行性。
For given a point on the frame, a point on the prescribed straight line and its orientation, the mathematical model under the configuration of Ball point on the rotating link was established by the method of analytic geometry. It can be used to solve all of possible straight-line mechanism solutions with three-order osculating straight lines which meet preset kinematic demands. Mechanism properties including straightness were analyzed and the graphical visualization of the property information was implemented. Feasible solution regions adhering to design Constraints were visually represented. And it can guide designers to find the global optimal mechanism. The results of synthesis examples verified the correctness and effectiveness of the proposed model and method.
出处
《机械设计与研究》
CSCD
北大核心
2016年第6期25-27,40,共4页
Machine Design And Research
基金
陕西省教育厅科研计划资助项目(11JK0851)
关键词
直线导路机构
机构综合
鲍尔点
曲率驻点曲线
straight-line guidance mechanism
mechanism synthesis
Ball point
curvature stagnation point curve
