基于Timoshenko梁理论的三体船波激响应

Trimaran Wave Response Based on Timoshenko Beam Theory

以Timoshenko梁理论和薄壁杆件理论为基础,考虑梁模型受到静止的波浪载荷预应力的作用,使连接桥产生垂向剪切变形以及垂向弯矩和扭转所产生的转角。通过梁模型简化小水线面三体船,建立三梁模型,从而对其波激响应进行数值模拟分析。结果显示,三梁模型在分析小水线面波激响应方面有较好的实用价值,给相关分析提供了一个实用的方法。

Based on the Timoshenko beam theory and the thin-walled bar theory,the beam model is influenced by the prestress of the stationary wave load,causing the connected bridge to produce a vertical shearing deformation and an angle due to the vertical bending moment and torsion.This paper simplifies the small waterplane area ship by beam model,sets up a three-beam model,and makes numerical simulation analysis of its wave response.The results show that the three-beam model can be practical for analysis on the wave response of the small waterplane area ship.