船用主汽轮机汽缸静刚度分析研究

On static rigid analysis of low-pressure cylinder of the warship propulsion steam turbine

针对船用主汽轮机低压缸静刚度的仿真研究考虑温度场和压力场等复杂环境研究较少的现象,为准确计算主汽轮机低压缸结构的静刚度,对考虑温度场、压力场作用的低压缸正车和倒车工况时的静刚度进行研究,并与仅考虑自身重力的设备静刚度进行对比分析.研究表明,温度场、压力场对加载部位结构的响应特性有很大影响,对低压缸整体结构也有一定程度的影响,为更加准确地模拟真实设备,在进行设备的静刚度分析时应该给予考虑.

Due to the phenomenon that temperature and pressure are seldom considered in most static rigid simulation research of the warship propulsion steam turbine,in order to accurately calculate the static rigid of structure,the static rigid research of the low-pressure cylinder under forward and backing-up cases are done in which temperature and pressure fields are both considered.And also the comparison analysis between simple case and complex case is got on.The results show that response characteristic of the structure loading temperature and pressure fields is affected greatly and the whole structure of the low-pressure cylinder is also affected to some extent.So temperature and pressure fields should be used to accurately simulate the actual equipment.