Renault "traffic". useful load:1300 kg 40 cars/day mass gain:17 kg cost:identical to a conventional system Figure 8.11 Leaf Spring ●spring 。rolling retum .wheel guide unidirectional connecting rod glass/carbon/epoxy Figure 8.12 Combination of Functions several thousands of parts per day in the automotive industry,to be made using a few processes,i.e.,filament winding,compression molding,pultrusion,and pultrusion-forming). The current development and commercialization efforts deal with leaf springs and torsion beam springs. Example:Single leaf spring (see Figure 8.11).A spring made of many metallic leaves is replaced by a single leaf spring made of composite in glass/epoxy.Many vehicles are sold with this type of spring,for example,Rover-GB;Nissan-JAP; General Motors-USA:Renault-FRA). Example:Multifunctional system (Bertin-FRA).This prototype for the front suspension of the automobile combines the different functions of spring,rolling return,and wheel guide (see Figure 8.12). Example:Stabilizing system.This is used for the connection between an automobile and a caravan (Bertin/Tunesi-FRA).The combined functions are shown schematically in Figure 8.13.The mass is divided by 4.5 in comparison with an“all metal'”solution. Example:The automobile suspension triangle has two parts (FRA)that are bonded to make a box (see Figure 8.14). 8.1.3.3 Mechanical Pieces Motor:The parts shown schematically in Figure 8.15 are in the experimental stage or in service in thermal motors.For pieces that have to operate at high temperatures,one should use the high temperature material system See Chapter 2. 2003 by CRC Press LLCseveral thousands of parts per day in the automotive industry, to be made using a few processes, i.e., filament winding, compression molding, pultrusion, and pultrusion-forming).7 The current development and commercialization efforts deal with leaf springs and torsion beam springs. Example: Single leaf spring (see Figure 8.11). A spring made of many metallic leaves is replaced by a single leaf spring made of composite in glass/epoxy. Many vehicles are sold with this type of spring, for example, Rover–GB; Nissan–JAP; General Motors–USA; Renault–FRA). Example: Multifunctional system (Bertin–FRA). This prototype for the front suspension of the automobile combines the different functions of spring, rolling return, and wheel guide (see Figure 8.12). Example: Stabilizing system. This is used for the connection between an automobile and a caravan (Bertin/Tunesi–FRA). The combined functions are shown schematically in Figure 8.13. The mass is divided by 4.5 in comparison with an “all metal” solution. Example: The automobile suspension triangle has two parts (FRA) that are bonded to make a box (see Figure 8.14). 8.1.3.3 Mechanical Pieces
Motor: The parts shown schematically in Figure 8.15 are in the experimental stage or in service in thermal motors. For pieces that have to operate at high temperatures, one should use the high temperature material system Figure 8.11 Leaf Spring Figure 8.12 Combination of Functions 7 See Chapter 2. TX846_Frame_C08 Page 190 Monday, November 18, 2002 12:22 PM © 2003 by CRC Press LLC