Selection and Analysis of Control Point Positions for Vibration Testing of Irregular Fixtures
In the vibration tests of spacecraft components conducted in the laboratory,ordinary structures(such as plates L-shaped product fixtures usually have control sensors installed on the product mounting surface of the fixture.However,when facing complex shaped fixtures,there is a lack of clear control point layout requirements and methods.If the selection of control point positions is unreasonable,it may seriously affect the test results and even lead to product failure or damage.In response to this issue,this article is based on the irregular tooling of a certain type of spacecraft component,selecting the characteristic positions of the tooling in sequence for control point layout,conducting vibration tests,and analyzing the test data to select the optimal control point position.On the basis of meeting the testing requirements,it greatly improves the testing efficiency and reliability,ensuring product safety.This method will also be applied to vibration tests of similar products in the future.
spacecraft componentsvibration testirregular toolingcontrol point position