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Hindi Journal of Fashion Technology & Textile EngineeringISSN: 2329-9568
Longdi Cheng Author
Subjects of specialization
Affiliation
Textile Science, Spinning Technology , Natural Fibers
College of Textiles, Donghua University, 2999 North Renmin Road, Songjiang District, Shanghai 201620, P.R. China
Biography
Professor Cheng Longdi is Independent Non-Executive Director of Texhong Textile Group Ltd. Professor Cheng obtained his doctorate degree in textile from Donghua University in 2002. Professor Cheng is currently a professor of Department of Textile Engineering, Donghua University and he is also the deputy director of the key laboratory of Textile Science and Technology, Ministry of Education. Professor Cheng is an academic committee member of the cotton textile profession committee of the China Society of Textile Engineering. Professor Cheng is also the committee member of the expert committee of China Textile Planning Institute of Construction.
Publications
Research Article Subscription
Theory of Semi-open-end Ring Spinning
Author(s): Keyi Wang, Zhihong Hua, Wenliang Xue and Longdi Cheng
In this paper we propose a novel spinning named semi-openend ring spinning. To discuss the theory, an infinitesimal cylinderchained fiber model is established, the differential Equations of the infinitesimal cylinder at different moment are established and revolved by Runge-Kutta integration. The trajectory of a fiber in vortex is simulated by a self-designed MATLAB procedure. The computation results coincide well with the experimental results. When the fiber bundle passing by the front nip is affected by the vortex and resulted into a partially strengthened and wrapped structure, it could be subsequently twisted with less twists by traveler and ring, thus the productivity could be potentially increased.
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