Structural Simulation of Flexure Compliant Mechanism for Stress Reduction for Space Payload System

Abstract

Detector Head Assembly (DHA) is a one of the most important assembly in the optical space payload. DHA consist the detector,
detector mount, PCB and DHA frame. However detector malfunction was identified as most critical failure of DHA. Due to the
temperature changes the thermal stresses are develop on detector and results in the malfunctions or cracks are generating on the
detector. To reduce the thermal stresses on detector by providing flexure compliant to detector mount, so detector is thermally
expandable or contract able. We proposed kinematics synthesis approach for concentrated or lumped compliant in which various
geometries are optimized to develop a compliant detector mount for payload. There are number of different iterative compliant
mounts are modeled using the modeling software package and also using ANSYS, to check the equivalent or von-misses stresses
on the detector and total deformation level of DHA.