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针对氦气涡轮转子系统中各构件复杂的非线性接触关系及结构强度问题,采用Pro/E建模软件对氦气轮机转子系统进行了3维实体造型,并利用ANSYS软件进行了数值仿真强度分析。真实模拟了涡轮转子在4种工况下的应力分布以及变形趋势。结果表明:除接触应力和开孔处应力较大外,在转子轴系整体强度计算中,各级轮盘盘心处应力较大。根据各工况下的计算结果比较分析得出,离心力对盘心处的应力影响最大,对温度场的影响次之。
Aiming at the complicated non-linear contact relation and structural strength of each component in helium turbine rotor system, three-dimensional solid modeling of helium turbine rotor system was carried out by using Pro / E modeling software and ANSYS software was used for numerical simulation of strength analysis . The simulation of the turbine rotor under four conditions of stress distribution and deformation trends. The results show that in addition to the contact stress and large stress at the hole, the stress at the center of the disc wheel at all levels is larger in the calculation of the overall strength of the rotor shaft system. According to the comparison and analysis of the calculated results under various operating conditions, it is concluded that the centrifugal force has the greatest influence on the stress at the hub and the second is the temperature field.