Three-dimensional location arithmetic for airplane flexible control system

Based on the spatial characteristic of airplane flexible control system, an effective location arithmetic is proposed to simplify three-dimensional location problems into two-dimensional solution. In this arithmetic, some coordinate transformation formulas are expressed, and arithmetic implementations are described easy to program by computer. Through the arithmetic, the computational complexity is reduced and computational precision is improved well. Numerical examples show that the arithmetic is precise and applicable to the location computation of flexible control system.