CAJ | 학술논문

废气涡轮增压器转子在工作转速下的不平衡会引起较大的振动破坏。分析了当前动平衡检测技术的应用，以软支承振动力学为理论基础，通过单件动平衡和整体动平衡方法的结合，提高了动平衡修正精度。提出一种切实可行的不平衡量修正方法，并运用FFT运算获得了振动值，相位和转速间的连续变化曲线，从而实现了转子在高速动平衡下测量和修正的检测目的。为涡轮增压器动平衡检测技术在速度和精度上的进一步优化提供了参考。
폐기와륜증압기전자재공작전속하적불평형회인기교대적진동파배。분석료당전동평형검측기술적응용，이연지승진동역학위이론기출，통과단건동평형화정체동평형방법적결합，제고료동평형수정정도。제출일충절실가행적불평형량수정방법，병운용FFT운산획득료진동치，상위화전속간적련속변화곡선，종이실현료전자재고속동평형하측량화수정적검측목적。위와륜증압기동평형검측기술재속도화정도상적진일보우화제공료삼고。
The imbalance of the exhaust turbocharger rotor under the operating speed will cause large vibration damage. In this paper,the current balancing test technology applications were analyzed based on the theory of soft-holding me-chanical vibration;the correction precision of dynamic balance was improved through a combination of single piece and overall balancing methods. And a viable correcting method of unbalance value was proposed;the continuous change curve of vibration,phase and rotate speed value were obtained by using the FFT method;the purpose of measurement and correction of rotor was achieved under high speed dynamic balance. The reference for the further optimization of turbocharger dynamic balance detection technology on speed and accuracy was provided.