CAJ | 학술논문

以EQ491型发动机油底壳为研究对象，通过有限元法得到了油底壳模型的固有频率和振型，运用模态实验技术，验证了有限元模型的合理性。在原始有限元模型的基础上，对油底壳模型进行约束模态分析，验证了油底壳结构的合理性，即油底壳固有频率远大于发动机机体激振频率。
이EQ491형발동궤유저각위연구대상，통과유한원법득도료유저각모형적고유빈솔화진형，운용모태실험기술，험증료유한원모형적합이성。재원시유한원모형적기출상，대유저각모형진행약속모태분석，험증료유저각결구적합이성，즉유저각고유빈솔원대우발동궤궤체격진빈솔。
Based on EQ491 oil pan, the vibration mode and inherent frequency of the oil pan model were gained by the finite element method. The rationality of the finite element model was verified by modal experiments. On the basis of the original finite element model, the constraint modal of the oil pan model was analyzed. The rationality of the oil pan structure was verified, i.e., the inherent frequency of the oil pan is greater than excitation frequency of the engine body.