CAJ | 학술논문

设计了一种用于液体火箭发动机涡轮泵减振的环形颗粒阻尼器.为研究颗粒阻尼器的减振性能,基于有限元法建立了附加颗粒阻尼器以及不加颗粒阻尼器的涡轮泵模型,计算过程中采用结构阻尼系数来描述颗粒阻尼器的阻尼特性.仿真结果表明,颗粒阻尼器能够显著降低涡轮泵的振动,并且对涡轮泵的动态特性影响很小.
설계료일충용우액체화전발동궤와륜빙감진적배형과립조니기.위연구과립조니기적감진성능,기우유한원법건립료부가과립조니기이급불가과립조니기적와륜빙모형,계산과정중채용결구조니계수래묘술과립조니기적조니특성.방진결과표명,과립조니기능구현저강저와륜빙적진동,병차대와륜빙적동태특성영향흔소.
A circular particle damper attached to the turbopump of the liquid rocket engine is designed. The models of the turbopump with and without the particle damper are built with finite element method to evaluate the damping effect on the vibration of the turbopump. In the simulation, the equivalent structural damping ratio is used to describe the damping performance of the particle damper. Numerical results show that the particle damper can reduce the vibration of the turbopump significantly, and has less effect on the dynamic characteristics of the turbopump.