Results 61 to 70 of about 54,143 (228)
Observer-based Fault Detection and Diagnosis for Mechanical Transmission Systems with Sensorless Variable Speed Drives [PDF]
, 2015 Observer based approaches are commonly embedded in sensorless variable speed drives for the purpose of speed control. It estimates system variables to produce errors or residual signals in conjunction with corresponding measurements. The residual signals
Abusaad, Samieh +3 more
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Pseudo-transient computational fluid dynamics analysis of an underbonnet compartment during thermal soak [PDF]
, 2007 Underbonnet simulations are proving to be crucially important within a vehicle development programme, reducing test work and time-to-market. While computational fluid dynamics (CFD) simulations of steady forced flows have been demonstrated to be reliable,
Bancroft, T.G. +2 more
core +1 more source
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
Effect of operating conditions on gearbox noise [PDF]
, 1992 Low contact ratio spur gears were tested in the NASA gear noise rig to study the noise radiated from the top of the gearbox. The measured sound power from the gearbox top was obtained from a near field acoustic intensity scan taken at 63 nodes just above
Atherton, William +4 more
core +2 more sources
Friction Shock Absorbers and Reverse Thrust for Fast Multirotor Landing on High‐Speed Vehicles
Journal of Field Robotics, Volume 43, Issue 2, Page 1068-1090, March 2026.ABSTRACT Typical landing gears of small uninhabited aerial vehicles (UAV) limit their capability to land on vehicles moving at more than 20–50 km/h due to high drag forces, high pitch angles and potentially high relative horizontal velocities. To enable landing at higher speeds, a combination of lightweight friction shock absorbers and reverse thrust ...
Isaac Tunney +2 more
wiley +1 more source
Jixie chuandong, 2019 The vibration characteristic of gearbox of high-speed train under different working conditions is studied. With a gearbox of a certain type of high-speed train as the object, the main influence factors of vibration are studied by the method of combining ...
Lin Xinhai Zhao Yongqiang Ma Yuqiang Dong Ting
doaj
Out With the Old: Empirical Trends in U.S. Land‐Based Wind Turbine Decommissioning and Repowering
Wind Energy, Volume 29, Issue 3, March 2026.ABSTRACT A growing number of wind turbines (WTs) across the globe are now reaching or exceeding their expected service lifetime; WT decommissioning is on the rise. Accordingly, questions pertaining to WT end‐of‐life have risen in importance in policy and practice. Yet, research on the various factors relating to WT decommissioning is relatively sparse.
Joseph Rand +4 more
wiley +1 more source
Improvement Design and Application of the F2 Gearbox
Jixie chuandong, 2015 The F2 gearbox of Angang Steel Company Limited is introduced. Through the improvement design of the gearbox speed ratio,center distance and bearing of this gearbox and the structure strengthen,the performance of the all aspects of gearbox are improved.
Zhang Kun +7 more
doaj
Lubrication mechanism in gearbox of high-speed railway trains
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2020 In this study, the moving particle semi-implicit (MPS) method is employed for numerical simulation of flow field in gearbox of high-speed railway trains so as to understand the lubrication mechanism and mode in the gearbox during high-speed operation.
Xingqiao DENG +7 more
doaj +1 more source
Contra-rotating marine current turbines : single point tethered floating system - stabilty and performance [PDF]
, 2009 The Energy Systems Research Unit within the Department of Mechanical Engineering at the University of Strathclyde has developed a novel contra-rotating tidal turbine (CoRMaT). A series of tank and sea tests have led to the development and deployment of a
Clarke, Joseph Andrew +4 more
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