Results 51 to 60 of about 210,108 (196)

Research on Dynamic Characteristics of Electromechanical Coupling for the Ultra‐Compact Wind Turbines

open access: yesWind Energy, Volume 29, Issue 9, September 2026.
ABSTRACT With the development of ultra‐compact wind turbines, the electromechanical coupling dynamic characteristics of integrated gearbox‐generator systems in their drive trains have attracted increasing attention. To reveal these characteristics, an electromechanical coupling dynamic model is established using the lumped parameter method and the ...
Yin Runsheng   +3 more
wiley   +1 more source

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

open access: yes, 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   +2 more
openaire   +1 more source

The Triple‐Benefit Potential of Desert Wind Farms in China: Energy, Resource Complementarity, and Climate Effect

open access: yesEarth's Future, Volume 14, Issue 9, September 2026.
Abstract The deserts of Northwest China are one of the most wind energy resource rich area in the country, and are characterized by concentrated solar energy and fragile ecosystems. Thus, efforts to harvest wind energy for carbon neutrality goals face vital challenges, such as determining where to site wind farms with consideration of wind energy ...
Naijing Liu   +4 more
wiley   +1 more source

Analysis of Complex Planetary Gearboxes

open access: yesSpectrum 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   +3 more
openaire   +1 more source

Condition Monitoring of Gear Systems using Vibration Analysis [PDF]

open access: yes
It is often impractical to measure vibrations directly at /or close to their sources when condition monitoring gearbox systems. It is common to measure the vibration distant from the source due to limited access to the component which is to be monitored.
Al-Arbi, Salem
core   +3 more sources

Changes in Foliar Water Uptake Caused by Water Stress in Cattleya Lindl. (Orchidaceae)

open access: yesPhysiologia Plantarum, Volume 178, Issue 5, September/October 2026.
ABSTRACT In response to water restrictions imposed by the epiphytic environment, orchids have developed strategies to increase water‐use efficiency, such as the expression of Crassulacean Acid Metabolism (CAM) and the foliar water uptake (FWU). In a climate change scenario, FWU may emerge as a strategy to reduce water stress during drought.
Jéssica Ferreira de Lima   +3 more
wiley   +1 more source

Planetary Gearbox Fault Diagnosis based on LMD Sample Entropy and ELM

open access: yesJixie chuandong, 2020
In order to solve the difficult problem of early fault feature extraction of planetary gearbox and consider that the planetary gearbox vibration signal is coupling and nonlinear,and the signal has multiple transmission paths,a planetary gearbox fault ...
Zhang Ning, Wei Xiuye, Xu Jinhong
doaj  

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, Volume 2, Issue 4, August 2026.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Optimization of Parameters of a Planetary Gearbox Using the Taguchi-Grey Relational Analysis

open access: yes, 2018
Optimization of parameters of central gears of a planetary gearbox was performed in this study. Since the optimization of multi-performance characteristics is more complex compared to optimization of a single-performance characteristics, the Taguchi-Grey
Sandra Velickovic   +3 more
core   +1 more source

Conceptual design of planetary gearbox system for constant generator speed in hydro power plant

open access: yesMATEC Web of Conferences, 2018
Micro Hydro Power Plant (MHPP) is emerging as one of the most clean, renewable and reliable energy technology for harnessing power. In MHPP hydro governors are avoided, that results in turbine speed fluctuation.
Bhargav   +3 more
doaj   +2 more sources

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