Results 51 to 60 of about 2,356 (246)

矿用自卸车轮边行星传动机构模糊可靠性优化

open access: yesJixie chuandong, 2014
With a purpose of the minimum gear tooth width and the smallest planetary gear train volume,a fuzzy reliability of system-level optimization method is proposed to solve problems of the short life and insufficient flexibility of electric wheel planetary ...
罗天洪, 江礁, 罗文军, 林超
doaj  

Multi‐Platform Deployments of Low‐Cost Devices for Cetacean Passive Acoustic Monitoring

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Recent advances in affordable, user‐friendly devices offer new opportunities to overcome cost constraints of underwater passive acoustic monitoring (PAM) and expand acoustic data collection. In this study, we deployed low‐cost acoustic recorders and underwater cameras across a range of platforms in the Western Mediterranean, including fishing gear ...
Greta Jankauskaite   +8 more
wiley   +1 more source

Study on the Load Sharing Characteristic and Influential Factor of the Planetary Transmission of Vertical Mill Reducer

open access: yesJixie chuandong, 2017
Taking planetary gear pair time-meshing stiffness,meshing damping,bearing support stiffness,support damping of vertical mill reducer into consideration,the vibration differential equation of planetary gear transmission is set up based on lumped parameter
Wang Wuguang
doaj  

Schematic Design of Planetary Gear Transmission for Automatic Transmission Based on Graph Theory

open access: yesJixie chuandong, 2022
The topological graph of planetary gear mechanism is established. Some topological graphs of two and three DOF planetary gear mechanism are synthesized. The procedures of isomorphism identification and rigid subchain detection are particularly presented.
Huiling Xue, Lijian Li, Fei Guo
doaj  

Modeling of the process of gear shifting in planetary gear trains of motor vehicles

open access: yesVojnotehnički Glasnik, 2011
Gear boxes, i. e. the realization of their functions, especially gear shift, have a big impact on vehicle operation quality through their effects on the performance of vehicles and their comfort.
Aleksandar R. Grkić   +2 more
doaj   +1 more source

Sentipensar [Feel‐Thinking] Cultivates Collective Scientific Sensemaking and Worldbuilding Within and Beyond Ecological Despair

open access: yesScience Education, EarlyView.
ABSTRACT Educating youth about environmental and climate justice is crucial in realizing a sustainable and flourishing future. Yet this can be challenging given the intense eco‐emotions youth experience and express while learning about these consequential realities and their implications.
Kelsie Fowler
wiley   +1 more source

Finite Element Residual Stress Analysis of Planetary Gear Tooth

open access: yesAdvances in Mechanical Engineering, 2013
A method to simulate residual stress field of planetary gear is proposed. In this method, the finite element model of planetary gear is established and divided to tooth zone and profile zone, whose different temperature field is set.
Jungang Wang, Yong Wang, Zhipu Huo
doaj   +1 more source

A Scenario Tool for Sustainability Transformation in Fisheries and Beyond

open access: yesSustainable Development, EarlyView.
ABSTRACT The urgency to find sustainable management solutions intensifies with increasing natural resource scarcity. Resource sectors are usually characterized by diverse resource users. We developed a structured scenario tool designed to quantitatively assess policy options for achieving sustainability, accounting for ecological, economic and ...
Marie‐Catherine Riekhof   +5 more
wiley   +1 more source

Study on Impact Excitation and System Dynamic Characteristics of Shield Machine Planetary Gear Train

open access: yes工程科学与技术
Objective This study aims to reveal the evolution law of the internal and external meshing state of the sun gear and planetary gear induced by the collision between the sun gear and planetary gear.
Zeyin HE   +4 more
doaj  

Analysis of Load Sharing Performance of Planetary Gear Reducer in Electric Vehicle Hub Motor

open access: yesJixie chuandong, 2017
As for the floating planetary gear reducer in hub motor,a dynamics equation of dual floating planetary transmission system is established,and then the calculation formula of load sharing coefficient is deduced.
Zhang Jiang, Qing Xunpeng, Chen Haoran
doaj  

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