| 基于运动精度可靠性的平面四杆机构优化设计 |
| |
| 引用本文： | 陈建军,陈勇,崔明涛,高伟,赵竹青. 基于运动精度可靠性的平面四杆机构优化设计[J]. 机械科学与技术, 2002, 21(6): 940-943 |
| |
| 作者姓名： | 陈建军 陈勇 崔明涛 高伟 赵竹青 |
| |
| 作者单位： | 西安电子科技大学电子机械系 西安710071(陈建军，陈勇，崔明涛，高伟)，西安电子科技大学电子机械系 西安710071(赵竹青) |
| |
| 基金项目： | 国防科技预研项目 (2 0 .2 .12 )资助 |
| |
| 摘 要： | 以具有杆长尺寸和铰链间隙误差的平面四杆机构为对象 ,运用微小位移线性迭加原理 ,对机构的输出运动误差进行了可靠性分析 ;建立了以杆长误差和铰链间隙的均方差为设计变量 ,满足运动精度可靠度和设计变量上下限要求为约束条件 ,使机构制造加工费用极小化为目标函数的优化设计数学模型 ;利用外点法和 Powell方向加速法求解 ,获得了令人满意的设计结果
|
| 关 键 词： | 平面四杆机构 运动精度 可靠性分析 优化设计 |
| 文章编号： | 1003-8728(2002)06-0940-04 |
| 修稿时间： | 2001-09-10 |
Optimization Design for Flat Four-Bar Mechanism Based on Reliability of Kinematic Accuracy |
| |
| CHEN Jian jun,CHEN Yong,CUI Ming Tao,GAO Wei,ZHAO Zhu qing. Optimization Design for Flat Four-Bar Mechanism Based on Reliability of Kinematic Accuracy[J]. Mechanical Science and Technology for Aerospace Engineering, 2002, 21(6): 940-943 |
| |
| Authors: | CHEN Jian jun CHEN Yong CUI Ming Tao GAO Wei ZHAO Zhu qing |
| |
| Abstract: | The flat four bar mechanism with error of bar length and joint gaps of hinge is studied. According to the principle of linear superposition of small displacement, the reliability of mechanism output kinematic accuracy is analyzed. The mathematical model of optimization design based on reliability for flat four bar mechanism is built, in which the manufacture precision of bar length and joint gaps of hinge are taken as design variables, the minimal process cost as objective function, the reliability of mechanism kinematic accuracy and the upper and lower bounds of design variables as constraints. The problem is solved by means of the external point approach and Powell approach. The results of optimal design is satisfactory. |
| |
| Keywords: | Flat four bar mechanism Kinematic accuracy reliability analysis Optimal design |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
