Performance analysis derivative based updating method

06-Mar-2020 03:11

For these reasons, it is quite difficult to establish an accurate and reasonable finite element model.

There is error between finite element analysis results and experimental values.

In addition, the physical test period is long and expensive; this hinders the development of the satellite industry.

The finite element simulation technology can conduct a comprehensive dynamic analysis of a product and obtain its response under various conditions.

At present, the methods of satellite structural dynamics prediction are mainly the ground dynamics tests of structures, which are supplemented by finite element dynamics analysis.

The vibration test of ground shakers is indispensable in the development and design of various types of satellites.

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After optimization, the orthogonality of the simulated vibration mode and experimental vibration mode is good.Among them, honeycomb sandwich panels are widely used.