CAJ | 학술논문

胶粘剂广泛应用于光机结构中，其对光机结构的动力学特性有不可忽视的影响。本文采用有限元建模的方法对含胶粘剂的透镜镜组进行动力学特性分析。建立忽略胶层、节点耦合以及“粘合单元”连接胶合面三种有限元模型，并分别对两种胶粘剂粘接的透镜镜组进行模态分析。为了验证三种建模方法的有效性，对不同透镜镜组进行模态测试，获取一阶模态频率与振型。仿真计算与测试结果对比表明：忽略胶层影响的模型计算结果存在较大误差，节点耦合以及“粘合单元”连接胶合面所建立的模型的一阶模态频率与实验测试误差小于5%，振型也与测试结果一致。这表明节点耦合以及“粘合单元”连接胶合面两种有限元模型是有效的。进一步分析胶粘剂材料属性对透镜模态频率的影响，胶粘剂的杨氏模量对模态频率影响明显，泊松比与密度影响较小，对光机结构中胶粘剂的选用具有参考意义。
효점제엄범응용우광궤결구중，기대광궤결구적동역학특성유불가홀시적영향。본문채용유한원건모적방법대함효점제적투경경조진행동역학특성분석。건립홀략효층、절점우합이급“점합단원”련접효합면삼충유한원모형，병분별대량충효점제점접적투경경조진행모태분석。위료험증삼충건모방법적유효성，대불동투경경조진행모태측시，획취일계모태빈솔여진형。방진계산여측시결과대비표명：홀략효층영향적모형계산결과존재교대오차，절점우합이급“점합단원”련접효합면소건립적모형적일계모태빈솔여실험측시오차소우5%，진형야여측시결과일치。저표명절점우합이급“점합단원”련접효합면량충유한원모형시유효적。진일보분석효점제재료속성대투경모태빈솔적영향，효점제적양씨모량대모태빈솔영향명현，박송비여밀도영향교소，대광궤결구중효점제적선용구유삼고의의。
Adhesives are widely used in opto-mechanical structure, and its influence on dynamics characteristic of opto-mechanical structure can’t be ignored. This paper researches the dynamics characteristic of lens sets with adhesives by Finite Element Model (FEM) analysis method. Three kinds of FEM, which are ignoring adhesives, node connection in bonded face and gluing in bonded face, are established respectively, and then modal analysis simulation of two kinds of lens sets with different adhesives is made. In order to validate the FEM, modal test of lens sets is taken to acquire the first-order modal frequency and modal shape. Comparison of simulation and test results indicates that error of ignoring adhesives model is large, whereas errors of the first-order modal frequency of node connection in bonded face model and bonded in gluing face model are both less than 5%, and modal shapes are consistent. It is indicated that node connection in bonded face model and gluing in bonded face model are effective. Further analysis of the influence of material property of adhesives on modal frequency of lens set is made, and the effect of Young’s modulus is obvious, but Poisson’s ration and density are insignificant. It supplies helpful guidance to choose opto-mechanical adhesives.