Natural Frequency Analysis of Simple Supported Box Beam

Abstract

A calculation model for simply supported box beam is established in the paper, and its natural frequency and vibration mode are analyzed through theoretical analysis and numerical simulation. The influence of elastic support to the beam frequency is also discussed, which showed that the elastic has great effect on beam frequency. Lastly, it can be concluded that the beam frequency can satisfied technical requirement by comparing the calculation values with the values commended in relevant code.