Results 1 to 10 of about 987 (234)
A Novel Motor Structure with Extended Particle Swarm Optimization for Space Robot Control [PDF]
Sensors, 2023 This paper studies motor structures and optimization methods for space robots, proposing an optimized stepped rotor bearingless switched reluctance motor (BLSRM) to solve the poor self-starting ability and significant torque fluctuation issues in ...
Hongwei Gao +6 more
doaj +2 more sources
Optimization design of stepped rotor type bearingless switched reluctance motor
Energy Reports, 2023 In order to solve the problems of small starting torque and large torque ripple existing in traditional 12/14 hybrid stator pole bearingless switched reluctance motor (BSRM), a stepped rotor type BSRM is proposed. The proposed motor not only inherits the
Zhenyao Xu +4 more
doaj +2 more sources
Parametric study of an empty diffuser geometric parameters and shape for a wind turbine using CFD analysis [PDF]
HeliyonThis research examines the optimal 3D geometric parameters and shape of empty diffusers to enhance the mass flow rate of the HAWT rotor plane using a detailed parametric study.
Debela Alema Teklemariyem +3 more
doaj +2 more sources
Development of an EN8 Steel Stepped Rotor by a Novel Engraving Milling Technique. [PDF]
Materials (Basel)The rotor or impeller is a rotational and key part of a pump and compressor. This article presents the detailed development process of a rotor of small size constructed from an EN8 steel cylindrical blank using a novel technique based on a computer numerical control engraving milling machine (CNC-EMM) equipped with a 4 mm tungsten carbide end mill ...
Chaubey SK, Gupta K.
europepmc +3 more sources
Imaging Algorithm for Rotor Synthetic Aperture Radar Using Stepped-frequency Waveform
Leida xuebao, 2014 For ROtor Synthetic Aperture Radar (ROSAR) using the stepped-frequency waveform, an imaging method based on Range Migration Correction (RMC) for ROSAR is proposed.
Zeng Cao +3 more
doaj +2 more sources
Balancing of a linear elastic rotor-bearing system with arbitrarily distributed unbalance using the Numerical Assembly Technique [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2021 In this paper, a new application of the Numerical Assembly Technique is presented for the balancing of linear elastic rotor-bearing systems with a stepped shaft and arbitrarily distributed mass unbalance. The method improves existing balancing techniques
Georg Quinz +3 more
doaj +1 more source
Energy Reports, 2023 The stator of the stepped rotor type bearingless switched reluctance motor has two kinds of wide and narrow stator teeth. The wide stator teeth provide suspension force, and the narrow stator teeth provide torque, so the decoupling control of torque and ...
Zhenyao Xu +4 more
doaj +1 more source
Simulation of Step Input in Collective Pitch for Hovering Rotor [PDF]
Proceedings of the Vertical Flight Society 76th Annual Forum, 2020 Advanced CFD tools are nowadays used routinely for analysis and design of rotorcraft. Computations for flows around rotors in trim are also common place and slowly the research community is shifting towards simulations of rotorcraft during maneuvering flight.
Woodgate, Mark A. +4 more
openaire +2 more sources
Shock and Vibration, 2022 An accurate modal analysis of the stepped rotor assembly is significant in the design process of rotors. The transfer matrix method (TMM) is widely used in the modal analysis of the rotor.
Yiming Zhang, Jiqiang Tang, Tong Wen
doaj +1 more source
Study of dynamic characteristics of stepped labyrinth seals
Nihon Kikai Gakkai ronbunshu, 2022 In recent years, there is concern about decreased stability of the eye seal used for impellers due to the increase in pressure of the turbo compressors.
Shunsuke MORINAKA +2 more
doaj +1 more source