衝撃応答時における衛星パネルの減衰モデルの導出とその有効性の検証(機械力学,計測,自動制御)

抄録

A damping model of the satellite panels during pyroshock responses was proposed in order to improve the prediction accuracy of the simplified pyroshock response analysis established in our previous paper. Through a statistical analysis for pyroshock test data measured in the deployment test of the solar paddles, it was clarified that the distribution of the damping ratio of the satellite panels during pyroshock responses does not follow a normal distribution but a log-normal distribution, and average of the damping ratio, which depends on frequency, is in the range of 5% to 10%. Then, a regression curve representing the damping model of the satellite panels was derived from the results. By conducting the pyroshock response analysis with the derived damping model, it was presented that the prediction accuracy of the simplified pyroshock response analysis was improved by about 6dB in high frequency range, while confirming effectiveness of the derived damping model.