【摘要】 在沿纵向和环向分别采用Ｈｅｒｍｉｔｅ插值和三角级数插值的基础上，建立了一种新的几何非线性带筋环单元，进而导出了推力轴承支架结构稳定性的半离散分析法。实例证明了该法正确与可靠。更多还原

【Abstract】 By applying the Hermite and trigonometric series interpolation along the longitudinaland circumferential direction respectively,a new kind of geometrically nonlinear ring ele-ments stiffened with ribs has been developed.The semi-discrete analysis method for the sta-bility of thrust bearing trestle of large hydraulic turbines is proposed.The correctness andeffectiveness of the analvsis is verified by examples.更多还原