School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
Sensors (Basel). 2023 Jan 7;23(2):701. doi: 10.3390/s23020701.
The accurate measurement of mass and centroid is indispensable for accurate control of aircraft. In order to eliminate the influence of assembly error and product pose error on the measurement results, a multi-station measurement idea that can self-compensate for the geometric parameter error is proposed in this paper based on. At the same time, the kinematic model of the mechanical structure of the measurement equipment is established to prove the effectiveness of the structure in error compensation theoretically, and the experimental verification of the standard part and aircraft is carried out. The test results show that the measurement results using the idea of the multi-station compensation measurement are significantly better than those of the more common methods, with the mass measurement accuracy of 0.03% and the centroid error within ±0.15 mm, meeting the requirement of high precision measurement for the mass properties.
质量和质心的精确测量对于飞机的精确控制是不可或缺的。为了消除装配误差和产品姿态误差对测量结果的影响，本文提出了一种基于多站测量思想的自补偿几何参数误差的测量方法。同时，建立了测量设备机械结构的运动学模型，从理论上证明了结构在误差补偿方面的有效性，并对标准件和飞机进行了实验验证。实验结果表明，采用多站补偿测量思想的测量结果明显优于更为常见的方法，其质量测量精度可达 0.03%，质心误差在±0.15mm 以内，满足质量特性的高精度测量要求。
