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Bing Yuan, Geng Liu and Lan Liu
As one of the long period gear errors, the effects of random cumulative pitch deviations on mesh excitations and vibration responses of a helical geared rotor system (HGRS) are investigated. The long-period mesh stiffness (LPMS), static transmission erro...
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Ying-Jun Lei, Rui-Jun Li, Lian-Sheng Zhang, Peng-Hao Hu and Qiang-Xian Huang
Optical accelerometers are high-precision inertial sensors that use optical measurement technology to achieve high-precision and electromagnetic interference-resistant acceleration measurements. With the intensive research and development of optical acce...
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Jyoti Gondane and Meena S. Panse
Self-mixing optical coherent detection is a non-contact measurement technique which provides accurate information about the vibration frequency of any test subject. In this research, novel designs of optical homodyne and heterodyne detection techniques a...
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Zipeng Li, Kunde Yang, Jinglong Chen and Shunli Duan
Unlike common rotating machines, shipborne antennas always work under variable loads and suffer from extreme ocean conditions, which makes monitoring their condition and early fault identification necessary and challenging. However, extracting weak fault...
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Tarek S. Amer, Roman Starosta, Ashraf Almahalawy and Abdelkarim S. Elameer
This paper examines a new vibrating dynamical motion of a novel auto-parametric system with three degrees of freedom. It consists of a damped Duffing oscillator as a primary system attached to a damped spring pendulum as a secondary system. Lagrange?s eq...
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Chaoren Qin, Dongdong Wang, Zhi Xu and Gang Tang
Most of the current research on the diagnosis of rolling bearing faults is based on vibration signals. However, the location and number of sensors are often limited in some special cases. Thus, a small number of non-contact microphone sensors are a subop...
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