In this paper, to protect the piping in nuclear power plants and various plant facilities, we have developed a damper using the friction method and carried out a study to analyze the performance. Friction typed damper means a device for attenuating vibration by generating a frictional force to the bearing and the shaft by applying a compressive force to the MER-Spring. In order to analyze the performance of the damper, the properties of MER-Spring and friction materials were analyzed, a study on the effects of friction was carried out, and the behavior of this equation was established. And, to determine whether deformation of the material and to examine the reliability of the behavior of equation established, prototypes was produced and, through a performance test and finite element analysis of a damper made of specimens, they were analyzed.

• 이성태(인하공업전문대학 토목환경과 교수, 공학박사) | Yi Seong-Tae 교신저자
• 조성국(이노스기술㈜ CEO, 공학박사) | Cho Sung Gook
• 박웅기(이노스기술㈜, 과장) | Park Woong Ki