CAJ | 학술논문

齿轮箱是风力发电机组中的核心部件，同时也是风力发电机组中故障率较高的部件之一。本文建立了2.5MW风机齿轮箱FZCR2500的刚柔耦合模型，并对传动系统的一级传动关键部件进行了静强度校核；建立了一级传动系统的断齿故障模型，基于有限元对其进行了瞬态动力学分析，通过EEMD对加速度信号进行分解，找出了对断齿故障比较敏感的特征量-峭度指标，为断齿故障诊断与分析提供理论依据。
치륜상시풍력발전궤조중적핵심부건，동시야시풍력발전궤조중고장솔교고적부건지일。본문건립료2.5MW풍궤치륜상FZCR2500적강유우합모형，병대전동계통적일급전동관건부건진행료정강도교핵；건립료일급전동계통적단치고장모형，기우유한원대기진행료순태동역학분석，통과EEMD대가속도신호진행분해，조출료대단치고장비교민감적특정량-초도지표，위단치고장진단여분석제공이론의거。
The gear box is the core component in wind turbine, and is also one of the high failure rate components. The coupled rigid and flexible model of 2.5 MW fan gear box FZCR2500 is presented in this paper to carry out static strength check for the key parts in Level 1 transmission. The Level 1 transmission system tooth break fault model is established, and transient dynamic analysis is carried on based on the finite element analysis. The acceleration signal is decomposed by EEMD, and the characteristics-kurtosis index sensitive to tooth break fault is found out, which provides theoretical basis for tooth break fault diagnosis and analysis.