A load-sharing dynamic force measuring platform accounting for inertial force and ambient noise

Abstract

In order to detect on the ground the dynamic disturbance forces produced by the operation of vibration sources in large aerospace equipment, a load-sharing measuring platform is presented that takes into account inertial forces and background noise. The load-sharing column ensures a larger mounting area and higher load capacity in the fundamental structure of the measuring platform. For measurement precision compensation, extra sensors are installed as well. A novel dynamic calibration and measurement principle that takes into account platform inertial forces and ambient noise is then developed based on the conventional theory. Finally, the load-sharing measuring platform’s prototype is machined, and a verification system is constructed. Using comparison tests, it is possible to confirm the viability and superiority of the presented principle. Compared to the traditional average dynamic measurement accuracy of 15.54 %, the new measurement theory has a higher accuracy of 5.02 %. This offers technical assistance to guarantee the reliable operation of highly precise aerospace equipment.