Experimental Identification of Transient Torque Fault Based on Bearing Load
-
摘要: 基于多轮盘转子系统的轴承负荷对扭矩扰动故障进行辨识。通过负荷传感器直接采集轴承负荷信号,结合负荷对扭矩激励的敏感度矩阵,对暂态扭矩进行辨识计算,并与扭矩传感器测得的数据结果进行对比分析。结果表明:辨识结果的误差在可接受范围之内。证明了基于轴承负荷识别暂态扭矩扰动这一方法的可行性。Abstract: Based on bearing load signals, the transient torque fault of a multi-support rotor system is identified in this paper. Bearing load signals are collected directly by the load sensors, and the bearing load sensitivity matrix based on the incentive of torque is applied. The transient torque value produced by magnetic powder brake can be identified with the proposed method. Compared with the actual value measured by torque transducer, the identification error is in the allowable range.The proposed method for identifying transient torque is feasible.
-
Key words:
- bearing load /
- transient torque /
- fault diagnosis /
- experimental identification
-
[1] 孙虎儿,杨兆建,梁群龙,等.基于轴承负荷的转子轴承系统建模与试验研究[J].中北大学学报(自然科学版),2010,31(1):14-18Sun H E,Yang Z J,Liang Q L,et al.Study on modeling and experimental of the rotor system on bearing load[J].Journal of North University of China,2010,31(1):14-18(in Chinese) [2] Tsujino J,Suzuki R,Takeuchi M.Load characteristics of ultrasonic rotary motor using a longitudinal-torsional vibration converter with diagonal slits.Large torque ultrasonic rotary motor[J].Ultrasonics,1996,34(215):265-269 [3] Chen D S,Xiang C L,Liu H.Analysis and experimental identification of torsional dynamic characteristics of hydrodynamic torgue converter[J].Journal of Beijing Institute of Technology,2002,11(2):150-154 [4] 李涌,任浩仁.汽轮机电液调节系统建模及其参数辨识[D].杭州:浙江大学,2005Li Y,Ren H R.Mechanical and electrical hydraulic regulating system modeling and parameter identifi-cation of steam turbine[D].Zhejiang:Zhejiang University,2005(in Chinese) [5] 董文智,张超.基于小波变换和EEMD分解的转子系统故障诊断[J].机械科学与技术,2012,31(6):972-976Dong W Z,Zhang C.Fault diagnosis for rotor systems based on wavelet transform and EEMD[J].Mechanical Science and Technology,2012,31(6):972-976(in Chinese) [6] 周川,刘畅,伍星,等.基于EMD和自适应形态滤波的解调方法及其应用研究[J].机械科学与技术,2011,30(8):1376-1380Zhou C,Liu C,Wu X,et al.A demo-dulation method based on empirical mode deco-mposition and adaptive morphological filtering[J].Mechanical Science and Technology,2011,30(8):1376-1380(in Chinese) [7] 孙虎儿,杨兆建,梁群龙,等.突变扭矩激励下转子系统横振响应[J].振动、测试与诊断,2011,31(5):622-625Sun H E,Yang Z J,Liang Q L,et al.Lateral vibration responses of rotor-bearing systems based on linear torsion excitation[J].Journal of Vibration Measurement and Diagnosis,2011,31(5):622-625(in Chinese) [8] 彭泽军,杨兆建.多支承转子-轴承系统的负荷敏感度研究[J].工程设计,2002,9(1):12-16Peng Z J,Yang Z J.Research on load sensit-ivity for multi-support rotor-bearing system[J].Engineering Design,2002,9(1):12-16(in Chinese) [9] 孙勇,景博,覃征,等.基于小波分析的信噪分离方法研究[J].计量学报,2006,27(2):153-155Sun Y,Jing B,Qin Z,et al.The signal de-noising method based on wavelet analysis[J].Acta Metrologica Sinica,2006,27(2):153-155(in Chinese) [10] 廖庆斌,李舜酩.一种旋转机械振动信号特征提取的新方法[J].中国机械工程,2006,17(16):1675-1679Liao Q B,Li S M.A novel method for feature extraction of rotating machinery vibration signals[J].China Mechanical Engineering,2006,17(16):1675-1679(in Chinese) [11] 王玉梅.基于Matlab用最大公约数法求电子电量[J].大学物理实验,2012,25(2):63-65Wang Y M.Measuring the electron charge based on matlab by way of greatest common divisor[J].Physical Experiment of College,2012,25(2):63-65(in Chinese) [12] 冯立,吴虞,才庆.抽油机扭矩计算模型建立及求解方法[J].油气田地面工程,2012,31(6):17-19Feng L,Wu Y,Cai Q.Torque calculation model and solving method of pumping unit[J].Oil-Gasfield Surface Engineering,2012,31(6):17-19(in Chinese)
点击查看大图
计量
- 文章访问数: 146
- HTML全文浏览量: 20
- PDF下载量: 5
- 被引次数: 0