Results 21 to 30 of about 5,147 (108)

Adjustment mechanism of blasting dynamic-static action in the water decoupling charge

open access: yesInternational Journal of Mining Science and Technology
Water decoupling charge blasting excels in rock breaking, relying on its uniform pressure transmission and low energy dissipation. The water decoupling coefficients can adjust the contributions of the stress wave and quasi-static pressure.
Hao Zhang   +5 more
doaj   +1 more source

Assessment of Modelling Fidelity for Predicting Transmission Error in Dynamically Coupled Spur Gear Systems

open access: yesIEEE Access
In the present study, the transmission error (TE) behaviour of an identical involute spur gear pair dynamically coupled with an attached subsystem is investigated through numerical modelling.
Guruparan Pitchai   +1 more
doaj   +1 more source

Dynamics of High-Speed Precision Geared Rotor Systems

open access: yesMATEC Web of Conferences, 2014
Gears are one of the most widely applied precision machine elements in power transmission systems employed in automotive, aerospace, marine, rail and industrial applications because of their reliability, precision, efficiency and versatility ...
Lim Teik C.
doaj   +1 more source

Quasi-static modeling of long-wave axis deviations in planetary gears for transmission error signal analysis

open access: yesForschung im Ingenieurwesen
Abstract Planetary gears are widely used in large transmission applications, such as wind turbines, hydropower plants and industry, due to power density, high gear ratio and efficiency advantages. The advancement of predictive maintenance and gear system design processes is essential to enhance the ratio between durability and used ...
Simon Nohl   +2 more
openaire   +2 more sources

重载车辆变速箱齿轮齿廓修形技术研究

open access: yesJixie chuandong, 2011
The quasi-static contact finite element analysis of meshing gear is simulated using MSC.Marc software,then transmission error and contact stress of gear are computed in different tooth profile modification methods.Due to the large load fluctuation of ...
王炎, 马吉胜, 刘海平
doaj  

Experimental Verification of Human Body Communication Path Gain Channel Modeling for Muscular-Tissue Characteristics

open access: yesIEEE Access, 2019
To study the signal transmission mechanism in the human body, the channel characteristics are generally analyzed by modeling. In current modeling methods, the human body is considered quasi-static and the human tissues isotropic, for simplifying the ...
Shuang Zhang   +8 more
doaj   +1 more source

Microstructure, Mechanical Properties, and Constitutive Models for Ti–6Al–4V Alloy Fabricated by Selective Laser Melting (SLM)

open access: yesMetals, 2019
The mechanical performances and microstructure of Ti–6Al–4V built by selective laser melting were evaluated by optical microscopy, transmission electron microscopy, and room temperature tensile testing, and compared with the wrought and as ...
Pan Tao   +5 more
doaj   +1 more source

Towards Efficient Wireless Body Area Network Using Two-Way Relay Cooperation

open access: yesSensors, 2018
The fabrication of lightweight, ultra-thin, low power and intelligent body-borne sensors leads to novel advances in wireless body area networks (WBANs). Depending on the placement of the nodes, it is characterized as in/on body WBAN; thus, the channel is
Maham Waheed   +4 more
doaj   +1 more source

Key Enhancement Algorithm for Quasi-Static MIMO Channel Based on Precoding and Cooperation Matrices

open access: yesShanghai Jiaotong Daxue xuebao
A key generation scheme based on precoding and cooperation matrix (PCM-SKG) is proposed to address the issues of poor randomness of physical layer keys and vulnerability to eavesdropping in a quasi-static environment.
LIANG Jingping, JING Qingfeng
doaj   +1 more source

Influence of Tooth Surface Wear on Dynamic Characteristics of Gear Systems Considering Three-Dimensional Tooth Surface Geometric Errors

open access: yesShock and Vibration
Tooth surface wear is an essential factor that affects gear transmission system dynamic characteristics and must be considered in monitoring the health status of gear systems.
Chang Liu   +3 more
doaj   +1 more source

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