Abstract: An approach to transfer alignment of inertial units on elastic body is proposed in this paper. In this approach, the angular velocity gyros are used as inertial units, the error of inertial units (angular velocity gyros) can be complemented, and the misalignment between two menial units can be estimated with high accuracy. The main contribution of this paper can be summarized into (1) the use of modal method in elastic mechanics to establish the motion equation of wing of the airplane, and (2) the use of adaptive Kalman filter to estimate the generalized force derived from the air. An example proves that the approach is effective.

Key words: transfer alignment, elastic body, adaptive filtering