Mass and Center of gravity measurement of large size revolving bodies and error separation method

In order to measure mass and center of gravity of large size revolving bodies, equipment based on multi-point weighing method was designed and applied. The error caused by installation eccentricity and tilt of the large size body was analyzed, and the error separation model based on reversal method was established to eliminate the error. With the method proposed, a large size revolving body with the diameter of 3000mm was tested; the experimental results showed that the method can reduce the measurement error of center of gravity to 0. 2mm. This method can separate the error caused by the installation eccentricity and tilting, and improve the measurement accuracy.