飞机强度试验大变形位移测量技术研究与应用  

Research and Application of Large Deformation Displacement Measurement Technology for Aircraft Strength Test

作　　者：黄太誉[1] Huang Taiyu(AVIC Aircraft Strength Research Institute,Xi＇an 710065,Shaanxi,China)

机构地区：[1]中国飞机强度研究所,陕西西安710065

出　　处：《工程与试验》2018年第3期13-16,103,共5页Engineering and Test

摘　　要：为满足大型飞机强度试验中大变形三维位移测量准确度的要求,对影响位移测量精度的各种因素进行了理论误差分析,提出了投影法和等体积法的间接测量三维位移的大变形测量方法。对比验证试验表明,该技术解决了传统测量方法在大变形下测量结果受垂直于被测方向上的位移影响不可忽略的难题,提高了试验位移测量的准确度。多次实际使用结果表明,该技术测量性能指标可满足飞机强度试验要求。In order to meet the accuracy requirements of three-dimensional displacement measurement in large aircraft strength test, the theoretical error of various factors which affect the accuracy of displacement measurement is analyzed, and the large deformation measurement methods for indirect measurement of three-dimensional displacement, such as projection method and equal volume method, are proposed. The large deformation measurement result of traditional method is affected by the displacement which is perpendicular to the measurement direction, so the measurement result cannot be ignored. The proposed method solves the above problem, and improves the accuracy of displacement measurement. Many practical applications show that the performance of the technology meets the requirements of aircraft strength test.

关 键 词：大变形三维测量 位移测量 飞机强度试验 间接测量 投影法 等体积法 

分 类 号：V216.11[航空宇航科学与技术—航空宇航推进理论与工程]