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以中国第一座直升机旋翼试验塔为研究对象,建立了塔体的动力学有限元模型,对塔体的模态频率和振型进行了计算,并对塔体在旋翼动载荷作用下的响应进行了计算,最后探讨了旋翼塔对旋翼试验可能造成的影响。
Taking the first helicopter rotor test tower in China as the research object, a dynamic finite element model of the tower body was established, and the modal frequencies and modes of the tower body were calculated. The response of the tower body to the rotor dynamic load The calculations were carried out and the possible impact of the rotor tower on the rotor test was discussed.