Abstract:
Numerical analysis combined with test which adopting impacting method is used to achieve the dynamic characteristics of fuel assembly under different boundaries. Firstly, finite-element analysis method is used to predict the natural frequency of fuel assembly, and the results supply a reference for test parameter setting and identification. Then the test adopts the impacting method, single-point excitation and multiple-point vibration pickup, to obtain the natural frequencies and modes. The results from the test and the numeric analysis are uniform.
下载:
