1P1-K10 Component Modal Testing of Large Space Structures : Multiple Additional Masses and Stiffnesses(Space Engineering and Robotics and Mechatronics (2))

Abstract

A method of component modal testing for predicting the dynamic characteristics of large structures was developed. It is sometimes difficult to perform a modal test of large space structures because they are not strong enough to withstand the force of gravity. This approach can avoid the strength problem. Additional masses and stiffnesses attached to a tested component are used to consider the effect of untested components. This paper deals with strength capability of the tested component with additional masses. A numerical example shows that component modal testing is applicable to large structures because the tested component has a large margin of safety.