Results 31 to 40 of about 943 (177)

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

Journal of Field Robotics, EarlyView.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini, Lorenzo Guerrini, Marco Fontanelli, Lucia Bortolini   +3 more
wiley   +1 more source

Modeling and Analysis of Transmission Efficiency for 3K Planetary Gearbox with Flexure-Based Carrier for Backdrivable Robot Joints

Actuators
A high-gear-ratio anti-backlash 3K planetary gearbox with a preloaded flexure-based carrier is a suitable reducer for robot joints owning to its compact design and high transmission accuracy.
Qinghao Du, Guilin Yang, Weijun Wang, Chin-Yin Chen, Zaojun Fang   +4 more
doaj   +1 more source

Adaptive Estimation of Instantaneous Angular Speed for Wind Turbine Planetary Gearbox Fault Detection

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, Baoping Tang, Lihua Meng, Bingchang Hou   +3 more
doaj   +1 more source

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source

Alpha Stable Distribution Based Morphological Filter for Bearing and Gear Fault Diagnosis in Nuclear Power Plant

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, Jianshe Kang, Lei Xiao, Jianmin Zhao   +3 more
doaj   +1 more source

Modeling and Simulating the Efficiency of Gearboxes and of Planetary Gearboxes [PDF]

, 2002
It is shown how to model and simulate frictional effects present in gearboxes and in planetary gearboxes. This includes modeling of gear wheel stucking and sliding due to Coulomb friction between the gear teeth leading to load torque dependent losses.
Pelchen, Christopher, Schweiger, Christian, Otter, Martin   +2 more
openaire   +1 more source

Empirical Physics‐Based Normal Behavior Modeling of Drive Train Temperatures With High‐Resolution Wind Turbine Operating Data

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, Victor von Maltzahn, Karoline Pelka   +2 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  

Development of a Compound Planetary Gearbox for Robot and Performance Evaluation Using Dynamometer [PDF]

한국정밀공학회지
Gearboxes 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, Jun Ki Hong, Soo Ho Woo, Soon Geul Lee   +3 more
doaj   +1 more source

Analysis of Complex Planetary Gearboxes

Spectrum of Mechanical Engineering and Operational Research
The ever-increasing demands for vehicle emission control have resulted in an expansion of planetary gearbox applications in road vehicles, due to their possibility to change the transmission ratio under load in synchronism with engine operation. Modern boxes are designed to extract the maximum number of transmission ratios as possible from the least ...
Željko Vrcan, Sanjin Troha, Kristina Marković, Dragan Marinković   +3 more
openaire   +1 more source