汽车车辆类悬架和框架设计外文文献翻译.doc

附 录A Formula SAE is a student competition sponsored by Society of Automotive Engineers (SAE), were students design, build, and compete with a small formula style race car. The basis of the competition is that a fictitious company has contracted a group of engineers to build a small formula car. Since the car is intended for the weekend autocross racer, the company has set a maximum price of $8,500. The race car is also limited to a single 610cc displacement engine with a single inlet restrictor. Other major rules require that the car must have a suspension system with a minimum wheel travel of 50mm and a wheelbase greater than 1524mm. The remainder of the rules define safety requirements such as side impact protection . The competition is separated into static and dynamic events. The static events include the cost nalysis, sales presentation, and engineering design. The dynamic portions of the competition are the 15.25 m diameter skid-pad, 91.44 m acceleration event, 0.8 km autocross, 44 km endurance race, and fuel economy. The FSAE competition has been established to provide an educational experience for college students that is analogous to the type of projects they will face in the work force. To participate in FSAE, student groups work with a project from the abstract design until it is completed. The aspects of engineering design, team work, project management, and finance have been incorporated into the basic rules of Formula SAE. This paper is intended to cover some of the basic concepts of suspension and frame design and also highlights the approach UM-Rolla used when designing their 1996 suspension and frame. The suspension section addresses the basic design parameters and presents specific examples. Next, the frame section discusses how to achieve a compromise with the FSAE design constraints. Finally, the design section gives a brief overview of the design methodology used by UM-Rolla for the 1996 race car. 1.Suspension Geometry FSAE suspensions operate