关键词: 接触应力, 铰链力矩天平, 静态校准, 有限元分析

Abstract: For hinge moment balance, inconsistent of support and connection in the states of static calibration and wind tunnel tests that cause its using formula changed, through band model static calibration of hinge moment balance, to amend the hinge moment balance formula, completed the test. By using the method of balance static calibration and Finite Element Analysis, researches on hinge moment balance under different fixed end geometry and the fastening bolt pretightening force, the variation and distribution law of contact stress of hinge moment balance, and analyzes its influence on the hinge moment balance measuring element main coefficient, draws two important conclusions improve the balance performance, providing evidences for the future design of hinge moment balance.

Key words: Contact stress, Hinge moment balance, Static calibration, Finite element analysis