CAJ | 학술논문

针对组合碟形弹簧力学性能数值模拟方法存在较大差别、尚无统一加载及边界约束条件、缺乏对阻尼特性定量描述问题，选B系列碟形弹簧分别对单片、2片叠合、3片叠合、3片叠合2组对合、3片叠合6组对合等组合碟形弹簧进行静、动力加载性能试验，考察加载预压量、动荷载幅值、加载频率对等效刚度、阻尼比影响；利用ANSYS软件模拟试验工况，基于静力加载试验实测数据考虑碟形弹簧与上下压板间摩擦作用，计算碟形弹簧锥面间摩擦系数等效值，并用于组合碟形弹簧件承受动荷载的数值模拟，与试验结果吻合较好。
침대조합설형탄황역학성능수치모의방법존재교대차별、상무통일가재급변계약속조건、결핍대조니특성정량묘술문제，선B계렬설형탄황분별대단편、2편첩합、3편첩합、3편첩합2조대합、3편첩합6조대합등조합설형탄황진행정、동력가재성능시험，고찰가재예압량、동하재폭치、가재빈솔대등효강도、조니비영향；이용ANSYS연건모의시험공황，기우정력가재시험실측수거고필설형탄황여상하압판간마찰작용，계산설형탄황추면간마찰계수등효치，병용우조합설형탄황건승수동하재적수치모의，여시험결과문합교호。
Discspringshavebeenwidelyadoptedintheisolationbearingsofbuildingsandbridges.Thedamping and stiffness properties of the combination of disc springs influence the isolation effect significantly.However,there are obvious differences between the numerical simulation methods for the combination of disc springs with various boundary constraints and loading ways.Moreover,there is still lack of quantitative description of the damping characteristic of disc springs.B series disc springs with single disc,two foldings,three foldings,three foldings then reversed as well as six reversed groups of three foldings were taken into investigation respectively and both static and dynamic experiments were carried out. The influences of pre-compression quantity, dynamic excitation amplitude and loading frequency on equivalent damping and equivalent stiffness were discussed. Based on static experimental results, the reasonable coefficient of friction between disc springs was evaluated through the numerical simulation by using the software ANSYS considering the friction applied by the upper and bottom cover plates.The proposed coefficient was adopted in calculating the dynamic characteristics of the combination of disc springs subjected to dynamic loadings and the results accord well with experimental data.