Vibration Analysis of a Split Path GearboxSplit path gearboxes can be attractive alternatives to the common planetary designs for rotorcraft, but because they have seen little use, they are relatively high risk designs. To help reduce the risk of fielding a rotorcraft with a split path gearbox,...
A variety of faults will increase the co-frequency vibration, such as imbalance, misalignment, and looseness. In engineering contexts, it is simple to attribute co-frequency vibration faults to unbalance, making it easy to identify the fault state but challenging to identify the fault category. Me...
Torsional vibrations are important whenever power needs to be transmitted using a rotating shaft or couplings, such as in the case of automotive, truck and bus drivelines, recreation vehicles, marine drivelines or power-generation turbines. Torsional vibrations are angular vibrations of an object and ...
Nie [16] built a multiple transfer path model from each mesh point to the ring gear sensor for the wind power gearbox. There is a large amount of research on the TPA of a vibration isolation system. In a vibration isolation system, each isolator acts as a transfer path during the ...
Carrera’s unified formulation (CUF) has been successful in previous works for buckling, vibrational, and stress analysis of VAT plates. Typically, one-dimensional (1D) and two-dimensional (2D) CUF models are used, with a linear law describing the fiber orientation variation in the main plane ...
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Keywords: long-range monitoring;low-power wireless;multi-hop network;accelerometers;long-span bridge;structural vibration monitoring;operational modal analysis;manhattan bridge
Vibration signal analysis is the most common technique used for mechanical vibration monitoring. By using vibration sensors, the fault prognosis of rotating machinery provides a way to detect possible machine damage at an early stage and prevent property losses by taking appropriate measures. We first...
The effect of bolt loosening on the torsional dynamics during the operation of machines in industrial plants is investigated in [13] and split path gearbox dynamics with parametrical excitation are represented in [14]. An advanced 16-DOF dynamical model of a gearbox with radial clearances in the...
The method of fault location cannot be used to realize the fault diagnosis [4]. In order to solve this problem, Donatella proposed a fault gear diagnosis method based on the analysis of frequency sidebands. By analyzing the sideband features of the fault signals, the accurate identification of...