CAJ | 학술논문

文章设计了一台水轮机现场检修专用数控机床，并对其建立三维模型，基于 ANSYSWORK-BENCH有限元分析，进行了水电站检修专用数控机床静力学分析，得到了床身变形、等效应力；进行了机床床身结构的模态分析，得到机床的前六阶固有频率和振型，得出了水轮机现场修复机床设计中的薄弱环节。通过对薄弱环节的结构改进，对比改进后的静力结构和模态分析，优化后的机床静态特性和动态特性明显提高。加强了现场修复机床的刚度和强度，而且也有利于大型水电站检修的现场修复精度，提高机床生产厂家的设备利用率，保障了能源与资源的不必要浪费。
문장설계료일태수륜궤현장검수전용수공궤상，병대기건립삼유모형，기우 ANSYSWORK-BENCH유한원분석，진행료수전참검수전용수공궤상정역학분석，득도료상신변형、등효응력；진행료궤상상신결구적모태분석，득도궤상적전륙계고유빈솔화진형，득출료수륜궤현장수복궤상설계중적박약배절。통과대박약배절적결구개진，대비개진후적정력결구화모태분석，우화후적궤상정태특성화동태특성명현제고。가강료현장수복궤상적강도화강도，이차야유리우대형수전참검수적현장수복정도，제고궤상생산엄가적설비이용솔，보장료능원여자원적불필요낭비。
A large turning machine tools has been designed for repairing the hydraulic turbines in this paper. A three-dimensional model of the machine tool bed was established. The finite element analysis method was used for statics analysis on the machine tool structure. Both the lathe bed deformation diagram, and equiva-lent stress and strain diagram were obtained. Furthermore, the modal analysis on the machine tool structure was carried out to get the first six order natural frequency and vibration models. Based on this foundation, the weak links of the machine tool bed were pointed out and optimized, Not only the accuracy of machine tools, but also the dynamic performance of machine tools has been improved with a distinct optimization effect. This is helpful to the structure design and quality improvement of special purposed large machine tools. So the intelligence and precision of repairing the hydraulic turbines are improved in our country.