CAJ | 학술논문

提出了一种获得碟形金属波纹管动刚度的方法，即将其简化成弹簧，构成单自由度弹簧质量系统，用锤击法测出系统的固有频率，从而计算出碟形金属波纹管的动刚度。通过进行静态轴向压缩试验获得碟形金属波纹管的静刚度，试验数据表明，静刚度略小于动刚度，动刚度更接近实际工况。用随机数据分析方法求碟形金属波纹管的动刚度，方便、准确，适用范围广，具有很高的工程应用价值。
제출료일충획득설형금속파문관동강도적방법，즉장기간화성탄황，구성단자유도탄황질량계통，용추격법측출계통적고유빈솔，종이계산출설형금속파문관적동강도。통과진행정태축향압축시험획득설형금속파문관적정강도，시험수거표명，정강도략소우동강도，동강도경접근실제공황。용수궤수거분석방법구설형금속파문관적동강도，방편、준학，괄용범위엄，구유흔고적공정응용개치。
It presents a method for obtaining the dynamic stiffness of the dish -shaped metal corrugated pipe .It simplifies the dish-shaped metal corrugated pipe as a spring , composes a single degree of freedom spring mass system, and applies the hammer method to measure the natural frequency of the system , then calculates the dy-namic stiffness of the dish -shaped metal corrugated pipe .At the same time , it also tests the system static stiff-ness.By comparison of two results , static stiffness value basically fits well with dynamic stiffness , but slightly less than it , in fact the dynamic stiffness is closer to the actual working conditions .The random data analysis method for dynamic stiffness is convenient and accurate , and has application values in a wide range of engineer-ing.