Results 41 to 50 of about 299,357 (239)

Comparison of Induction and PM Synchronous motor drives for EV application including design examples [PDF]

open access: yes, 2012
Three different motor drives for electric traction are compared, in terms of output power and efficiency at the same stack dimensions and inverter size. Induction motor (IM), surface-mounted permanent-magnet (PM) (SPM), and interior PM (IPM) synchronous ...
Boazzo, Barbara   +3 more
core   +1 more source

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

open access: yesAdvanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos   +11 more
wiley   +1 more source

Research on State Recognition Technology of Elevator Traction Machine Based on Modulation Feature Extraction

open access: yesSensors, 2022
Vibration signal analysis of the traction machine is an important part of the current rotating machinery state recognition technology, and its feature extraction is the most critical step.
Dongyang Li, Jianyi Yang, Yong Liu
doaj   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Application of SiC Devices in Traction System of Urban Rail Vehicles

open access: yes机车电传动, 2020
The high frequency, high temperature and high voltage characteristics of SiC devices bring system application advantages to the design of urban rail traction system, but also bring some application challenges.
Hua LI   +4 more
doaj  

Optimization of traction characteristics of agricultural tractors

open access: yesTraktory i sel hozmashiny, 2017
The productivity of the machine-tractor unit depends on the energy saturation of the tractor. It is assumed that the optimum traction characteristic corresponds to the minimum operating weight of the tractor and its maximum energy saturation, at which the maximum productivity of the machine and tractor unit is achieved with the lowest fuel consumption ...
V. A Samsonov, Yu. F Lachuga
openaire   +1 more source

Dynamics of Torque-Speed Profiles for Electric Vehicles and Nonlinear Models Based on Differential-Algebraic Equations [PDF]

open access: yes, 2002
The so-called μ — λ curves, where is the slip ratio and μ is the normalised traction force or the friction index, are nonlinear functions of the velocity of the vehicle and the wheel rotational velocity.
Melnik, Roderick V.N.   +2 more
core   +1 more source

Development of Urban Electric Bus Drivetrain [PDF]

open access: yes, 2019
The development of the drivetrain for a new series of urban electric buses is presented in the paper. The traction and design properties of several drive variants are compared.
Chyský J.   +5 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Electric System Design of Eight-axle Diesel Shunting Locomotive for Exporting to Uzbekistan

open access: yes机车电传动, 2011
The traction system scheme of diesel shunting locomotive for exporting to Uzbekistan was detailedly introduced for satisfying higher starting and continuous traction forces. Optimization of microcomputer control system and electric parts using under high
邓小东, 孟玉发
doaj  

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