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The kinematic Design of Beating-up Mechanism for Water-jet Loom Series Modified from air-jet Loom

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Journal of China Textile University(English Edition) 1998年第1期15卷 61-63页

作者：毕丽蕴陈明

For Toyoda looms with air-jet weft insertion,the beat-ing-up mechanisms together with those of Tsudakomawater-jet looms are analyzed.Then by changing thecrank length of the four-bar-linkage for the air-jetlooms to get four specifications of reed travel correspond-ing to the series of Tsudakoma water-jet looms,it canbe proved by comparisons of displacements,velocities,accelerations and transmission pressure angles that thosetwo series of mechanisms have very similar kinematicproperties.So the possibility of developing a series of wa-ter-jet looms modified from Toyoda air-jet looms isproved.It is beneficial to save the machine cost andbroaden the machine types.

关键词： Water-jet looms air-jet looms beating-up mechanism.

STUDY OF STRUCTURE AND RIGIDITY OF air-jet TEXTURED YARN(ATY)

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Journal of China Textile University(English Edition) 1990年第2期8卷 19-25页

作者：王善元吴静张翼翔 Department of Textile Technology

This paper deals with the structure of air-jet textured yarn(ATY),especilly its core structurein dedail.It is described that overfeed of supply yarn does influence the ATY structure.Then thebending rigidity of ATY has been measured and analyzed.The results shows that various supplyyarns affect the core structure and bending rigidity of ATY.

关键词： air-jet texturing yarn structure core structure overfeed bending rigidity

Streamwise vortex generation by the rod

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Chinese Journal of Aeronautics 2019年第8期32卷 1903-1911页

作者： Ryszard SZWABA Pawel FLASZYNSKI Piotr DOERFFER Department of Experimental Aerodynamics Institute of Fluid Flow Machinery Polish Academy of Sciences

The technology development related to aerodynamics is leading to ever increasing loads of wings, airfoils and turbine and compressor blades. The increase in aerodynamic forces is often leading to flow separation and depreciation of the aerodynamic performance of flying objects or propulsion systems. Flow control methods are required to avoid these negative effects. In the recent two decades the flow control by means of air-jet vortex generators has been also intensively investigated. In this method a streamwise vortex is introduced by an oblique jet. The necessity to supply air by a pipe system may be considered a disadvantage. In order to eliminate this feature, it has been proposed to put out a rod instead of a jet. It has been shown that the application of a rod can introduce the same effect as a jet, as long as the streamwise vortex generation is concerned and appropriate dimensions are used. The present paper focuses on the influence of rod vortex generators on a flow pattern downstream. The results presented here concern experimental and numerical investigations and provide guidelines for the design of a new flow control method dedicated mainly to external flows.

关键词： air-jet vortex generator Boundary layer Flow control Rod vortex generator Streamwise vortices

PRELIMINARY STUDY ON OPEN END jet SPINNING

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Journal of China Textile University(English Edition) 1996年第1期13卷 9-13页

作者：郁崇文 China Textile Univ Shanghai China

A new concept of spinning-open-end jet-spinning, which combines the advantages of the false twist jet spinning and open end winning, was proposed, and a device was designed to practice this concept. The property of th... 详细信息

关键词： open-end air-jet spinning spun yarns.