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Material enters into the upper ports of screen box and is discharged through the bottom ports in the working.
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Design of a New Multifunctional Motorized Wheel for Urban Electric Vehicle Weihua Yang 1,a,Yourong Li 1,b, Zifan Fang 2,c,Kongde He 2 1The Key Laboratory for Metallurgical Equipment and Control of the Ministry of Education, Wuhan University of Science and Technology, Wuhan ,China 2Mechanic and Material College, China Three Gorges University, China aywhuactgu@126.com, bliyourong@wust.edu.cn, cfzf@ctgu.edu.cn Keywords: Electric vehicle, In-wheel motor, Scheme design, Parameter calculation.
The stator which is made by injection molding is coreless and slotless, double air gap exists between double rotators and single stator, the rotators are spliced by high performance permanent magnet materials and steel plate.
With the improvement of the science and technology level, the in-wheel motor technique will certainly has the broad applied prospect in the field of new energy vehicle.
References [1] Yang Yanghu,The wheel hub motor of electric vehicle, Journal of Automobile maintenance, no.3, pp.44-47, 2012
[2] Wang Shukun,Fang Liang,Zheng Long,Design and Research of Wheel-Rim Drive System of Electric Vehicle, Journal of Machinery Design and Manufacture, no. 4, pp.146-148, 2012

Acknowledgement In this paper, the research was sponsored by the Foundation of Science and Technology on Ship Integrated Power System Technology Laboratory (Project No. 9140C840201130C84282) and the Nature Science Foundation of Naval University of Engineering (Project No.
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Material parameters refer to the relevant data of polypropylene (Asahi Kasei-Polypro E1200―Asahi Kasei Corporation), the selected mould materials are ALUMINIUM (A1).
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (10572033).
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For materials with the existing cracks, it is possible to propagation of cracks when the increasing stress reaches fracture criticality.
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The length of surplus edge materials is cj using Oj . aij and cj have set value when the cutting pattern Oj is given.
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