Results 51 to 60 of about 8,052 (227)

Beachrock formation influenced by co‐seismic deformation and relative sea‐level changes during the Holocene near the Gulf of Saros, Türkiye (NE Aegean Sea)

Boreas, Volume 55, Issue 1, Page 231-257, January 2026.
This is the first proof of beachrock found on the nearshore of the Gulf of Saros. Beachrock generation was influenced by tectonic activity, geomorphological processes, and sedimentation. The Late Holocene beachrock deposits were altered by co‐seismic deformation.
Ufuk Tari
wiley   +1 more source

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, Liubov A. Klimina, Yury D. Selyutskiy, Mi-Ching Tsai, Hong-Tzer Yang   +4 more
openaire   +1 more source

MPHLDAE‐1DCNN: A Novel Denoising Method for Improved Fault Diagnosis

International Journal of Rotating Machinery, Volume 2026, Issue 1, 2026.
Fault diagnosis of rotating machines has undergone significant advancements through the use of deep learning models. However, the effectiveness of these models is often compromised by noisy raw vibration data collected from industrial machines, which can negatively impact accuracy rates. To address this challenge, we present an improved fault diagnosis
Fasikaw Kibrete, Dereje Engida Woldemichael, Hailu Shimels Gebremedhen, Sohini Basu Roy   +3 more
wiley   +1 more source

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

MATEC 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, Parameshwaran M. A., Sivaraj S., Venkataram Nithin   +3 more
doaj   +2 more sources

Fault Diagnosis of Planet Gear Using Continuous Vibration Separation and Minimum Entropy Deconvolution

Applied Sciences, 2020
Planet gear is the most unique dynamic component in planetary gearbox. It rotates around sun gear while rotating around its own central axis, causing modulation effect in monitoring signal.
Jian Shen, Lun Zhang, Niaoqing Hu
doaj   +1 more source

A Hybrid Model Reference Adaptive and Regressive‐Form Sliding Mode Control in Discrete Domain: Robustness Under System Uncertainty

Engineering Reports, Volume 7, Issue 12, December 2025.
A novel MRASMC framework is developed, with a sliding surface derived from a regressive structure and parameters adaptively updated. An adaptive trigger condition enhances disturbance rejection without requiring complex observers or full system models.
Nhut Thang Le, Cong Toai Truong, Van Tu Duong, Tan Tien Nguyen, Huy Hung Nguyen   +4 more
wiley   +1 more source

Root Crack Identification of Sun Gear in Planetary Gear System Combining Fault Dynamics with VMD Algorithm

Shock and Vibration, 2021
Planetary gearbox is widely used in various low-speed machines due to its large transmission ratio. However, the gears in a planetary gearbox are prone to the mechanical faults due to the complex dynamic heavy load.
Hongwei Fan, Yiqing Yang, Hongwei Ma, Xuhui Zhang, Xiang Wan, Xiangang Cao, Qinghua Mao, Chao Zhang, Qi Liu   +8 more
doaj   +1 more source

Stability Analysis Using Predictor‐Corrector Continuation to Develop Ince‐Strutt Diagrams for a Nonlinear Parametric Oscillator

PAMM, Volume 25, Issue 4, December 2025.
ABSTRACT Time‐varying properties of mechanical systems can lead to parametrically excited oscillations. An example is the time‐varying stiffness of gear teeth meshing in the analysis of gearbox dynamics. A mechanical model can be used to represent the rotational motion of the gear pair.
Mirco Jonkeren, Sebastian Tatzko, Jörg Wallaschek   +2 more
wiley   +1 more source

Analysis of Failures, Downtimes and Reliability of Wind Turbines From SCADA Data

Wind Energy, Volume 28, Issue 12, December 2025.
ABSTRACT With the growing demand for safe, efficient and reliable sustainable energy sources, wind energy has witnessed rapid growth worldwide in recent years. Reliability is critical to the operational performance of the wind turbines. Reliability analysis allows for the critical subassemblies to be identified and better maintenance strategies to ...
Cuong D. Dao, Ibrahim Husayn, Phong B. Dao   +2 more
wiley   +1 more source

Planetary Gearbox Fault Diagnosis based on LMD Sample Entropy and ELM

Jixie 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