一种飞机机翼支撑平台尺度综合分析  

Dimensional Synthesis Analysis of Support Platform on Aircraft Wings

作　　者：许致华[1] 胡士磊 洪振宇[1] 张志旭 Xu Zhihua;Hu Shilei;Hong Zhenyu;Zhang Zhixu(School of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China;School of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China;Basic Experiment Center,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学航空工程学院,天津300300 [2]中国民航大学电子信息与自动化学院,天津300300 [3]中国民航大学基础实验中心,天津300300

出　　处：《机械科学与技术》2018年第11期1678-1684,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金委员会与中国民用航空局联合项目(U1733128);中央高校基本科研业务费项目中国民航大学专项(3122017024;3122017042);民航局科技项目(MHRDZ20130218)资助

摘　　要：设计了一种由多个2R1T并联机构联合组成的飞机机翼支撑平台,该平台各个并联机构的主动支链采用液压互联的方式实现各动平台协同自适应调节,使其具有更好的翼型匹配度。研究了该并联机构基于多评价指标综合约束的尺度综合方法,建立其在不同约束条件下的评价指标,利用单调性分析法,并以各项性能最优的原则,引入统一的比例系数,确定尺度参数可行域。最后结合算例,以并联机构动平台中心的运动偏差率在最大许可范围内为初始目标,进行多评价指标综合约束,确定该并联机构的最优尺度参数可行域。A new wing support platform composed of multiple 2R1T parallel mechanisms is designed.The active branch chains of all parallel mechanisms are coordinated by hydraulic interconnection to achieve coordinated adaptive adjustment of all moving platforms,so that they have better airfoil matching degree.The dimensional analysis of the parallel mechanism is carried out based on the comprehensive constraints of multiple evaluation indexes.The evaluation index under different constraint conditions is established using the monotonicity analysis method.According to the principle of optimal performances,a unified ratio coefficient is introduced to determine the feasible domain of the dimensional parameters.Finally,an optimal dimensional parameter feasible region of the parallel mechanism is determined with comprehensive constraints of multiple evaluation indexes and taking the motion deviation rate of the parallel platform center as the initial target in the example.

关 键 词：飞机机翼支撑平台 并联机构 尺度综合 偏差率 

分 类 号：TH122[机械工程—机械设计及理论]