JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 65

The PC-FIL 2.0 program was developed to coil the same type of mandrel and is used all over the world with multi-axis winding machines [2] where the guiding eye moves along the (o, x) and the (o, z) axes. Suppressing the (o, z) axis makes the winding machine cheaper, which is now possible with PC-FIL 2.2. In the following, we will present first the initial mathematical analysis for the application, then the special configuration of the winding machine and, finally, the PC-FIL 2.2 program. Where: R’ = Rsinψ = constant : Clairaut’s equation [3] , and Mathematical analysis The aim of this study is to determine analytically the mandrel rotation and feed-eye trajectory (Figure 1), such that the synchronisation of these two movements describes the geodesic lines while winding the fibre on the mandrel. Machine design The machine described below is designed to be incorporated in a manufacturing chain for revolution composite structures. The chain comprises: • a personal computer; • a CYBER numerical command unit; • a two-axis winding machine. The personal computer is used to simulate winding on the screen and to prepare all the data for a numerical command unit used to control the machine. The numerical command unit can be programmed from its keyboard or receive programs prepared by the computer via an RS232 interface. It comprises a central unit and two electronic speed variators assigned to synchronise the mandrel’s rotation and the guiding eye translation through two servo motorreductors of 500 point increment coders. The winding machine has two parallel axes: the mandrel’s rotational axis and the guiding eye’s translation axis. Fig. 1: Spatial configuration of the mandrel and feed eye. Characteristics of the software The software is written in Turbo Pascal 6.0 language; it is composed of twenty-one files contained in 494,534 bytes. The executable 114,477-byte file can run in a micro-computer device with graphical facilities. Key • M(x, y, z): fibre deposit point on the mandrel; • E(XE, O, Z): position of the guiding eye, Zo = Constant; • θ: rotation of the mandrel around its axis; p • T: tangent to the meridian at M; p • Tψ: tangent to the geodesic at point M; • ψ: winding angle; • B: angle defined by the horizontal plane (O, x, z) and the deposit plane (O, x, y1); • R: radius of the mandrel at the deposit point. The expression of the geodesic line on a revolution body was established by Faysal Abdel Ady [2]: dθ = Where: x’ = The feed eye’s motion is parallel to the axis of the mandrel and is defined as follows: XE = X+ [Z0 - Rcos(β)] cos (ψ) R’cos(β) cos (ψ)− 1+(R’) sin(β) sin(ψ) Fig. 2: Pull-down menu. No34 July-August 2007 / JEC Composites Magazine

JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007

Editorial
Market Place
Advertisers & Index
Contents
NEWS WORLDWIDE
- Companies
- Agenda of events
- Innovations
BUSINESS
- Market survey
- Trends
- Niche markets
FEATURE - AUTOMOTIVE
- Trend
- Process
- Raw material
USERS’ PLATFORM
- Composites in the world
- Successful Partners
- Applications
KNOW-HOW
- Ecodesign
- Bonding
- Software
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 1
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 2
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - Editorial
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - Market Place
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - Advertisers & Index
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - Contents
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 7
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Companies
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 9
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Agenda of events
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 11
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Innovations
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 13
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 14
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - BUSINESS
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 16
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Market survey
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 18
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 19
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Trends
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 21
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Niche markets
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - FEATURE - AUTOMOTIVE
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Trend
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 25
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 26
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 27
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 28
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 29
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 30
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 31
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Process
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 33
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 34
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 35
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Raw material
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 37
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 38
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 39
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 40
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 41
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 42
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 43
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 44
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 45
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 46
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - USERS’ PLATFORM
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Composites in the world
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 49
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Successful Partners
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 51
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 52
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 53
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Applications
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 55
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 56
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - KNOW-HOW
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Ecodesign
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 59
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 60
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 61
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Bonding
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 63
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - - Software
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 65
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 66
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 67
JEC COMPOSITES MAGAZINE - Issue #34 - July/August 2007 - 68
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