Results 31 to 40 of about 948 (172)
IEEE Access, 2019 Planetary gearbox faults are the leading causes of downtime in wind turbines (WTs). In recent years, numerous and various vibration-based approaches have been put forward for WT gearbox fault detection.
Yi Wang +3 more
doaj +1 more source
Effect of a Planetary Gearbox on the Dynamics of a Rotor System
Volume 7A: Structures and Dynamics, 2018 The dynamic analysis of rotors with bladed disks has been investigated in detail over many decades and is reasonably well understood today. In contrast, the dynamic behaviour of two rotors that are coupled via a planetary gearbox is much less well understood.
Tatar, Ali, Schwingshackl, Christoph W.
openaire +2 more sources
Wind Energy, EarlyView.ABSTRACT The installed wind energy capacity increases every year. However, operation and maintenance costs still make up a considerable portion of the levelized costs of electricity. This costs can be greatly reduced by the application of suitable early fault detection methods. The supervisory control and data acquisition system of wind turbines is one
Timo Lichtenstein +2 more
wiley +1 more source
Science and Technology of Nuclear Installations, 2015 Gear and bearing play an important role as key components of rotating machinery power transmission systems in nuclear power plants. Their state conditions are very important for safety and normal operation of entire nuclear power plant.
Xinghui Zhang +3 more
doaj +1 more source
Development of a Compound Planetary Gearbox for Robot and Performance Evaluation Using Dynamometer [PDF]
한국정밀공학회지Gearboxes used in the drivetrain of intelligent robots are key mechanical components that play a significant role in determining the performance of modern robotic systems. Gearboxes employing the planetary gear mechanism, known to achieve a wide range of
Jae Hong Lee +3 more
doaj +1 more source
Effect of Redundant Rollers in Planetary Gearbox
Mechanism and Machine TheoryMechanical transmission losses account for a significant portion of energy dissipation in electromechanical actuators. These actuators generally use a combination of high-speed electrical motors with a high-ratio gearbox. For such high-ratio gear transmission, even minor deviations in meshing can lead to substantial power loss.
Anand Varadharajan +4 more
openaire +2 more sources
The Vibrodiagnostics of Damaged Gears of Planetary Gearboxes [PDF]
Communications - Scientific letters of the University of Zilina, 2014 This article deals with description of a diagnostic device used at the Department of Design and Machine Elements at the University of Zilina which has been built in order to measure, diagnose and evaluate gearbox faults by vibrodiagnostics. The article describes methods and damage creation process for tested gearboxes. Evaluation of different faults is
Lubos Kucera, Tomas Gajdosik, Jan Bucala
openaire +2 more sources
Wind Energy, Volume 29, Issue 9, September 2026.ABSTRACT Due to their superior load density, planetary gear journal bearings (PGJB) are progressively replacing rolling element bearings in wind turbine gearboxes; therefore, accurately revealing the dynamic characteristics of drivetrains supported by these bearings under variable operating conditions is crucial for ensuring operational reliability ...
Pengcheng Jin +3 more
wiley +1 more source
Simulation and Experimental Study on Dynamic Characteristic of Planetary Gear Transmission
Jixie chuandong, 2019 In order to solve the problem of high failure rate in the operation of planetary power shift gearbox for engineering vehicles， a dynamics simulation model of planetary gearbox is established based on the dynamics transmission theory， and the rotational ...
Xiaolan Pang
doaj
Behavior of HAWT with Differential Planetary Gearbox
Journal of Power and Energy Engineering, 2014 A dynamic model for simulating behavior of a horizontal axis wind turbine (HAWT) with differential planetary gearbox is developed. The aerodynamic load applied to the wind turbine connected with the carrier is described using the quasi-steady approach. The control torque is assumed to be applied to the external ring of the gearbox.
Marat Z. Dosaev +4 more
openaire +1 more source