Results 41 to 50 of about 4,984 (269)

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Dynamics Characteristic Analysis of Involute Gear with Asymmetric Tooth Considering the Influence of Time-varying Stiffness and Backlash

open access: yesJixie chuandong, 2019
To obtain more accurate dynamics change law for asymmetric involute gear, dynamics model of asymmetric involute gear is established by introducing time-varying stiffness and gear backlash.
Qi Chen   +3 more
doaj  

Compliance and stress sensitivity of spur gear teeth [PDF]

open access: yes, 1983
The magnitude and variation of tooth pair compliance with load position affects the dynamics and loading significantly, and the tooth root stressing per load varies significantly with load position.
Cornell, R. W.
core   +1 more source

From Ship to Shore: A Review of Vessel‐To‐Grid Bidirectional Charging for Sustainable Maritime Transport

open access: yesEcoEnergy, EarlyView.
As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor   +3 more
wiley   +1 more source

SIMULATION ANALYSIS OF A STEADY TEMPERATURE FIELD OF DOUBLE INVOLUTE GEAR DRIVE

open access: yesJixie qiangdu, 2017
Double involute gear drive was a new type of gear drive. Based on the theory of friction,heat transfer and gear meshing,the friction heat flux and convection coefficient of double involute gear were calculated,considering the heat energy of friction ...
FAN ZhiMin, WANG RuiXue, ZHOU WanFeng
doaj  

Surface pitting fatigue life of noninvolute, low-contact-ratio gears [PDF]

open access: yes
Spur gear endurance tests were conducted to investigate the surface pitting fatigue life of noninvolute gears with low numbers of teeth and low contact ratios for use in advanced applications.
Townsend, Dennis P.
core   +1 more source

Design of a Hydroelectronic Solar‐Tracking System for Solar Panels

open access: yesEnergy Science &Engineering, EarlyView.
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

基于特征的三维渐开线圆柱齿轮CAD

open access: yesJixie chuandong, 2002
Studied the method of 3D modeling for involute cylindrical gear, based on the design theory of property, this paper advanced a kind of theory of 3D modeling about the parts of gear, according to the structure property for involute cylindrical gear. Using
吴鲁纪, 常克勤
doaj  

Exploring Belonging Through the Student Union: The Power of Familiar Faces and Comfortable Spaces

open access: yesNew Directions for Higher Education, EarlyView.
ABSTRACT Since their origin, college unions have played a significant role in fostering a sense of belonging and advancing the academic mission of colleges. However, published empirical studies remain scarce due to the focus of college union professionals’ work on both student development and facility operations.
Katheryn Paynter‐Fanning   +1 more
wiley   +1 more source

用中心投影法作直齿圆锥齿轮的仿真模型

open access: yesJixie chuandong, 2010
In order to establish the straight bevel gear sketches and simulation model database,the straight bevel gear profile involute mathematical model is established,and a bevel gear tooth involute profile of the spherical projection formed into the circle ...
胡志勇, 张国兴, 刘海, 刘长增
doaj  

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