Error Analyzing Of Mechanical System In Non-Orthogonal Coordinate System

With the development of productivity and science, the non-orthogonal coordinate measuring system is wanted in more and more situation, however the non-orthogonal coordinate measuring system is analyzed little because of its complexity and multiplicity in the structure. So this paper is worked out to solve it, and it is of great application value.An error compensation modal of non-orthogonal coordinate measuring system is built in this paper, in which completely new thought is taken out:using the natural coordinate system combined with the spherical coordinate system to analyze the errors of non-orthogonal coordinates measuring system, In the result , it makes things simpler and not only find out the number of errors and the factors resulted in the errors, but also build the error compensation formula completely, which perfects the study of non-orthogonal coordinate measuring system' s errors. In order to accurately analyze the error in the non-orthogonal coordinate measuring system, the circular cylindrical coordinate measuring system is discussed first and the formula of its number of errors is computed, and then it extends to the non-orthogonal coordinate measuring system of n dimensions arms of robots, and build its errorcompensation modal, which is proved to have high precision. In this paper, the framework error of the system is analyzed quantificationally, and other errors as mechanical distortion error, thermal distortion error, detect error and dynamic error are analyzed qualitatively.