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从曲线薄壁梁的控制微分方程出发 ,导出了一组新的有显式表达的曲线薄壁梁单元公式 ,经过算例验证 ,表明此单刚对于开口截面是可靠的 ,且具有很高的精度 .这种思路具有一定的通用性 ,据此可推导出闭口截面曲线梁的单元公式 .
Based on the governing differential equation of curved thin-walled beam, a new set of formulas for the thin-walled beam with curved lines is derived, which is validated by an example. It shows that this single-beam is reliable and has high precision for the open cross section The idea has a certain versatility, from which we can deduce the unit formula of curve beam with closed cross section.