Results 21 to 30 of about 303 (176)

Control of Hybrid Hydromechanical Transmissions

, 2019
This thesis deals with control aspects of complex hybrid hydromechanical transmissions for heavy mobile working machines. Control problems are identified and solved to facilitate the implementation and use of these systems. Fuel prices and environmental concerns have increased the interest in hybrid hydromechanical transmissions for heavy mobile ...
openaire   +4 more sources

Structural and parametric synthesis of hydromechanical regulators of the aircraft emergency system with a power transmission unit

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The emergency subsystem of a passenger aircraft containing a power transmission unit as an object of regulation is considered. For the structural synthesis of new types of automatic control systems for the emergency system of an aircraft, the ...
V. A. Tselischev
doaj   +1 more source

Hydraulic Stimulation Experiments Attempting to Enhance Induced Seismicity for Earthquake Physics Research

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Improving our understanding of induced and natural earthquakes benefits from controlled experiments in insitu laboratories. To investigate the processes during an Mw∼0 earthquake, we performed the “Mzero” experiments in a densely instrumented testbed of the Bedretto Underground Laboratory. These multi‐day hydraulic stimulation experiments went
Valentin Samuel Gischig, Men‐Andrin Meier, Aurora Lambiase, Danyang Jiang, Marian Hertrich, Nima Gholizadeh Doonechaly, Mohammadreza Jalali, Antonio Pio Rinaldi, Stefano Aretusini, Kathrin Behnen, Kai E. N. Bröker, Alberto Ceccato, Victor Clasen Repollés, John Clinton, Luca Dal Zilio, Pascal Edme, Thomas Haag, Rebecca Hochreutener, Alexandra Lightfoot, Cara Magnabosco, Frédérick Massin, Hansruedi Maurer, Maria Mesimeri, Leila Mizrahi, Francesco Mosconi, Anne Obermann, Kadek Palgunadi, Edoardo Pezzulli, Giulio Poggiali, Giacomo Pozzi, Martina Rosskopf, Luca Scarabello, Ryan Schultz, Miriam L. Schwarz, Paul A. Selvadurai, Alexis Shakas, Elena Spagnuolo, Mariano Supino, Lu Tian, Elisa Tinti, Katinka Tuinstra, Meleza Liliana Vargas, Linus Villiger, Zhe Wang, Alba Zappone, Eric Zimmermann, Jordan Aaron, Florian Amann, Massimo Cocco, Stefan Wiemer, Domenico Giardini   +50 more
wiley   +1 more source

Specifičnosti vučnog proračuna brzohodnih guseničnih vozila sa hidromehaničkim transmisijama / Particularities of tractive effort calculation of high-speed tracked vehicles with hydromechanical transmissions [PDF]

Vojnotehnički Glasnik, 2003
Problemima proračuna vuče brzohodnih guseničnih vozila posvećen je veliki broj radova, ali se oni, uglavnom, odnose na vozila sa ugrađenim mehaničkim transmisijama. U raduje ukazano na određene specifičnosti proračuna vuče brzohodnih guseničnih vozila sa
Milorad V. Radetić
doaj   +1 more source

Redistribution of Basal Forces and Shielding Model for Seismic Signals of Debris Flows Over Loose Thin‐Layer Sediments

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Debris flows over riverbeds generate intense basal force fluctuations that radiate seismic signals, offering a key tool for remotely monitoring their dynamics. In steep, highly erosive mountainous channels, bedrock is often covered by a thin layer of loose sediments, which significantly reduce seismic energy.
Bo Pang, Zongji Yang, Zhiyong Huang, Zhaoying Wu, Pan Chen   +4 more
wiley   +1 more source

Poromechanical and Crack Evolution of Olivine‐Rich Rock During Serpentinization

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Serpentinization alters the strength, fracture behavior, and rheology of ultramafic rocks, yet the coupled evolution of mineral reactions, cracking, and mechanical softening remains poorly constrained. We experimentally simulated serpentinization in dunite at 220°C and 15 MPa for 14 and 30 days and compared the reacted specimens with dry heat ...
Ummu‐kulthum Lawal, Kiseok Kim
wiley   +1 more source

液压机械无级变速器结构参数的选择

Jixie chuandong, 1998
A hydromechanical transmission as a kind of Continuously variable apparatus is coming into use in vehicles gradually. ln this paper, we make a careful study of transmission principle of a the transmission, and pointout the parametric selection method of ...
高国生, 赖涤泉, 郭京波
doaj  

Design of a Hydroelectronic Solar‐Tracking System for Solar Panels

Energy Science &Engineering, Volume 14, Issue 5, Page 2600-2625, May 2026.
A prototype of a passive solar‐tracking system utilizing buoyant force based on water level was developed, and its MATLAB/Simulink model was implemented. This study is expected to encourage researchers to design solar‐tracking mechanisms using metals with different thermal expansion coefficients, air, oil, and other fluids. ABSTRACT This study presents
Ufuk Süğürtin, Türker Fedai Çavuş
wiley   +1 more source

Research on Transmission Characteristics of Hydromechanical Continuously Variable Transmission of Tractor

Mathematical Problems in Engineering, 2020
This paper proposes a new transmission scheme of hydromechanical continuously variable transmission (HMCVT) for tractors. The HMCVT has 4 working ranges in each of the front and rear directions. The speed characteristic and the torque characteristic of HMCVT are theoretically derived.
Junyan Wang, Changgao Xia, Xin Fan, Junyu Cai   +3 more
openaire   +1 more source

Porosity‐Permeability Evolution of Carbonate Rocks Under Cyclic Hydrostatic Loading: Creep‐Fatigue Interaction and Implications for Hydrogen Storage

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Underground hydrogen storage in porous formations (UHSP) subjects reservoir rocks to long‐term cyclic effective stress variations, potentially altering storage capacity and injectivity. In this study, we conduct hydrostatic loading tests on 18 Saint‐Maximin limestone (SML) samples (connected porosity 31.9%–37.2%) under various loading paths ...
Zhaochen Xu, Jean Sulem, Philipp Braun
wiley   +1 more source