Topic
Winch
About: Winch is a research topic. Over the lifetime, 9831 publications have been published within this topic receiving 33303 citations. The topic is also known as: Winch & winches.
Papers published on a yearly basis
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Papers
Patent•
19 May 2014TL;DR: In this paper, an inertial measurement unit is configured to measure oscillations of the payload, and a control system is used to determine the payload oscillations based on the data received from the IMU.
Abstract: An unmanned aerial vehicle (UAV) including a winch system, wherein the winch system includes a winch line having a first end that is secured to the payload, and wherein the winch system is controllable to vary the rate of descent of the payload, an inertial measurement unit positioned on the payload or on the first end of the winch line, wherein the inertial measurement unit is configured to measure oscillations of the payload, and a control system configured to (a) receive data from the IMU, (b) determine oscillations of the payload based on the data received from the IMU, and (c) operate the winch system to vary the deployment rate of the winch line so to damp oscillations of the payload.
192 citations
Patent•
16 Aug 1999TL;DR: An apparatus for facilitating the connection of tubulars, consisting of a winch, at least one wire line, and a device for gripping the tubular, is described in this paper.
Abstract: An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch, at least one wire line, and a device for gripping the tubular, the arrangement being such that, in use, the winch can be used to winch said at least one wire and said device to position a tubular below said top drive.
158 citations
Patent•
2 May 2001TL;DR: In this article, a wind turbine is mounted on the upper end of a tower and a sled is attached on the lower end of the tower to support the wind turbine, and a self-propelled vehicle is used to transport the sled from one tower location to another.
Abstract: The apparatus of this invention is utilized for mounting a wind turbine on the upper end of a wind turbine tower. The invention also relates to the method of erecting the same. The tower is provided with a pair of guide rails positioned on opposite sides thereof which extend from the lower end to the upper end of the tower. A sled is movably mounted on the guide rails and has a platform mounted thereon which is adapted to support the wind turbine thereon. In one form of the invention, the sled is self-contained in that it has an engine and a winch mounted thereon. In another form of the invention, the winch and engine are mounted on a self-propelled vehicle which is designed to transport the sled from one tower location to another. In another form of the invention, the winch is detachable from the self-propelled vehicle so that the winch may be anchored to the ground. When the wind turbine has been positioned at the upper end of the tower, a horizontally slidable platform moves the wind turbine from the sled to the upper end of the tower so that the wind turbine may be secured to the upper end of the tower.
145 citations
Patent•
29 Sep 2004TL;DR: In this article, an electronic winch monitoring system for a winch having a fixed-ratio gearbox with input and output shafts, an auxiliary brake connected to the output shaft activated by reducing the pressure in a brake release hydraulic circuit was presented.
Abstract: An electronic winch monitoring system for a winch having a fixed-ratio gearbox with input and output shafts, a winch drum connected to the output shaft, and an auxiliary brake connected to the output shaft activated by reducing the pressure in a brake release hydraulic circuit. The system comprises an input shaft speed sensor, an output shaft speed sensor, and an electronic control unit having a monitoring section and a brake control section. The monitoring section receives the speed signals, processes them to produce a calculated ratio of actual input to output shaft speeds, and produces a fault indication signal when the value of the difference between the calculated speed ratio and the fixed ratio exceeds a predetermined value. The brake control section, upon receiving the fault signal, reduces the hydraulic pressure in the brake circuit using a nonlinear pressure-time profile to engage the auxiliary brake and stop the winch drum.
83 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 21 |
| 2024 | 38 |
| 2023 | 75 |
| 2022 | 90 |
| 2021 | 74 |
| 2020 | 352 |