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Frequency and Vibration Characteristics of High-Speed Gear-Rotor-Bearing System with Tooth Root Crack considering Compound Dynamic Backlash
المؤلفون المشاركون
Liu, Jie
Zhao, Weiqiang
Liu, Weiwei
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-19، 19ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-11-19
دولة النشر
مصر
عدد الصفحات
19
التخصصات الرئيسية
الملخص EN
Considering the microstructure of tooth surface and the dynamic characteristics of the vibration responses, a compound dynamic backlash model is employed for the gear transmission system.
Based on the fractal theory and dynamic center distance, respectively, the dynamic backlash is presented, and the potential energy method is applied to compute the time-varying meshing stiffness, including the healthy gear system and the crack fault gear system.
Then, a 16-DOF coupled lateral-torsional gear-rotor-bearing transmission system with the crack fault is established.
The fault characteristics in the time-domain waveform and frequency response and statistics data are described.
The effect of crack on the time-varying meshing stiffness is analyzed.
The vibration response of three backlash models is compared.
The dynamic response of the system is explored with the increase in crack depth in detail.
The results show that the fault features of countershaft are more obvious.
Obvious fluctuations are presented in the time-domain waveform, and sidebands can be found in the frequency domain responses when the tooth root crack appears.
The effect of compound dynamic backlash on the system is more obvious than fixed backlash and backlash with changing center distance.
The vibration displacement along meshing direction and dynamic meshing force increases with the increase in crack depth.
Backlash and variation of center distance show different tendencies with increasing crack depth under different rotational speeds.
Amplitude of the sidebands increases with crack depth increasing.
The amplitude of multiplication frequency of rotational frequency has an obvious variation with growing crack depth.
The sidebands of the multiplication frequency of meshing frequency show more details on the system with complex backlash and crack fault.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Jie& Zhao, Weiqiang& Liu, Weiwei. 2019. Frequency and Vibration Characteristics of High-Speed Gear-Rotor-Bearing System with Tooth Root Crack considering Compound Dynamic Backlash. Shock and Vibration،Vol. 2019, no. 2019, pp.1-19.
https://search.emarefa.net/detail/BIM-1210978
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Jie…[et al.]. Frequency and Vibration Characteristics of High-Speed Gear-Rotor-Bearing System with Tooth Root Crack considering Compound Dynamic Backlash. Shock and Vibration No. 2019 (2019), pp.1-19.
https://search.emarefa.net/detail/BIM-1210978
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Jie& Zhao, Weiqiang& Liu, Weiwei. Frequency and Vibration Characteristics of High-Speed Gear-Rotor-Bearing System with Tooth Root Crack considering Compound Dynamic Backlash. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-19.
https://search.emarefa.net/detail/BIM-1210978
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1210978
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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