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1、 译译 文文原文题目：原文题目： Design and fabrication of low cost filament winding machine 译文题目：译文题目： 低成本纤维缠绕机的设计制作低成本纤维缠绕机的设计制作 学学 院：院： 机电工程学院机电工程学院 专业班级：专业班级： 1 级机械工程及自动化级机械工程及自动化 02 班班 学生姓名：学生姓名： 杨杨 帅帅 学学 号：号： 西安工程大学本科毕业设计（翻译）Design and fabrication of low cost filament winding machineF.H. Abdalla, S.A. Mutashe
2、r, Y.A. Khalid, S.M. Sapuan *,A.M.S. Hamouda, B.B. Sahari, M.M. Hamdan B.AbstractIn general, the composite pipes are fabricated using glass fiber and polyester resin matrix by hand lay-up and also by 2-axis filament winding machine. In this work, a filament winding machine was designed and developed
3、 for the fabrication of pipes and round shape specimens. A lathe-type machine and a wet winding method were used in the design of the machine. It provides a capability for producing pipe specimens with an internal diameter up to 100 mm and lengths up to 1000 mm. The range of the winding angle, or th
4、e fiber orientation angle, starts from 20 to 90 depending on the mandrel diameter used. Mandrel speed is kept constant as 13.6 revolutions per minute (rpm) while the speed of screw of delivery unit varies from 0 rpm to a maximum of 250 rpm. In the filament winding process used, a single glass roving
5、 is drawn through a bath of pre-catalyzed resin which is mounted on the lead screw by the rotating mandrel. A control unit was used to control the whole process and achieve regular winding and good surface finish. Tube samples and other circular specimens of different dimensions were produced using
6、this machine for the different mechanical tests and applications.Keywords: Filament winding; Composite tube; Glass fiber; Matrix; Fiber orientation angle1. IntroductionFilament winding has emerged as the primary process for composite cylindrical structures fabrication at low cost. In this process, c
7、omposite layers are successively wound on a rotating mandrel, as presented in Fig. 1. The layers may be wrapped at different angles varying from hoop layers, which are perpendicular to the cylinder axis, to helical layers which are at an angle to the cylinder axis. The construction of composite cyli
8、nder by filament winding consists of three major steps 1, the first is the design, which includes the selection of materials, geometry, and fiber orientations while the second is fiber placement, the mechanical means by which the fibers are placed in their proper positions. Finally, the third is the
9、 selection and control of conditions which must be maintained during the 西安工程大学本科毕业设计（翻译）Fig. 1. Schematic of the wet filament winding process 1. manufacturing process. A process for fabricating a composite structure in which continuous reinforcements (filament, wire, yarn, tape, or other), either p
10、reviously impregnated with a matrix material or impregnated during the winding, are placed over a rotating and removable form or mandrel in a prescribed way to meet certain stress conditions. The reinforced fibers are usually made of glass, Kevlar or carbon. Owing to simplicity of process, the hardw
11、are configuration is quite standard, and generally involves two main sub-systems; the rotary assembly and the delivery system.The rotary assembly consists of two structural blocks;one fixed and the other linearly movable unit in which a 2-axis mechanically driven mandrel is mounted onto its holders.
12、 On the fixed end, the holder is connected to a rotating shaft, which is coupled to either a gear or a chain or belt reduction system, or directly to the motor unit. Generally, an AC or servo-motor is used because of its greater torque capabilities and accuracy when operating under conditions of hea
13、vy loading. For delivery system, rolls of continuous fibers are fed into a resin bath which is mounted onto the carriage rails that are commonly placed overhead to provide greater workroom. Generally, the shape is a surface of revolution and may or may not include end closures. When the required num
14、ber of layers is applied, the wound form is cured and the mandrel removed. The material properties in each layer are constant but may vary from layer to layer. The mandrel is represented by a hollow cylinder with uniform effective wall thickness. The mandrel and the cylinder are of equal length and
15、are axisymmetrical, so that neither the geometry nor the properties vary in the circumferential direction. Filament winding is defined as 2 a technique which produces highstrength and lightweight products; consists basically of two ingredients; namely, a filament or tape type reinforcement and a mat
16、rix or resin. The 西安工程大学本科毕业设计（翻译）concept of filament winding process had been introduced in early 1940s and the first attempt was made to develop filament-winding equipment. The equipment that was designed in 1950s was very basic; performing thesimplest tasks using only two axes of motion (spindle rotation
