劳伦兹大学FSAE悬架设计外文翻译不完整版

1、毕业设计外语翻译材料ABSTRACTthis paper is an introduction to the design of suspension components for a formula SAE car . formula SAE is a student competition where college studentsOVERVIEWin designing suspension components for the 2001 Lawrence technological university formula SAE vehicle，Safety and duranty w

2、ere the top prioriesin order to ensure The safety of The suspension system，The loads acting on every component were extensively stud by utilization strength of matengthanother mesu Re used to ensure the safety of the suspension system was that every suspension fastener was put into double shear and

3、was either safety wiiinweight was another important consideration while designing and manufacturing the suspension system on the 2001 Lawrence technological universitionin order to achieve a weight reduction over previous Lawrence technological university formula SAE vehicles，Finite element analysis

4、 was utilityAlso，Chrome moly or 7075-T6 aluminum was used for every suspension component depending on which material was more practical consiring anySUSPENSION DESIGN控制ARMSthe purpose of the control arms is to secure the wheel assembly to the chassis .coupled with The suspension geometry，The control

5、 arms play a key role in determining The kinematics of The car such as camber rejection and roll ss1The control arms also provide a means for tuning The suspension for specific courses。figure 1: assembled rear control armsIn order to reduce weight，spherical bearings are staked into the pivot points

6、and ball joints of the lower control arms，Along with the rear upperin order to stake the spherical bearings into the 4130 steel tubing，A hollow aluminum insert is pressed into the tubing。非tempered aluminum was used for The insert due To The fact that tempered aluminum is too hard To flatten，which ca

7、uses The 4130 steel tubing To cothe bearing is then firmly staked into the control arm .figure 23360 inserted spherical bearingrod ends with 4130 steel threaded inserts are used where suspension adjustment is necessary for tuning。rod ends are used on the front upper control ar M pivot points to allo

8、w for camber and caster adjustments in the front suspension . also，rod ends arethe appropriate size of 4130 steel tubing was determined to be 19.05mm od x 0.71mm wall thickness from performing buckling and bending stress calula Tula(see appendix)this size of tubing is equivalent to 0.75 inch x 0.028

9、 inch wall thickness，Which is a common size of tubing in the United stateusing this size of tubing with a cornering load of 1.3g and a braking force of 1.4g，Which were determined from equipping previous Lawrence technoload2The cornering and braking forces were calculated using a vehicle and driver w

10、eight of 2935.8n .(see appendix)These calculationsfigure : control arm FEA resultsAlso，an extensive load study performed on the control arms resulted in the arms of the control arms being directly in line with chassis nodesall of the control arm fasteners are put into double shear and meet an specif

11、ication s .therefore，The control arms were designed to be lightweight，relieable，and safe。UPRIGHTSthe main function of the uprights is to provide an interface to connect the upper and lower ball joints with the spindle .it is crucial to minimize the Weight of the uprights because they are un sprung m

12、ass，and the shocks have to control this Weight in bump。3The uprights were manufactured from 7075-T6 aluminum instead of 4130 steel，which is common on many formula SAE vehicles，as a weight reheiclesFor safety purposes，the ball joint fasteners were put into double shear by passing them through the top web of the ball joint pocket and threadingFront Uprightsto maximize the strength And minimize the deflection of the front uprights，Many design iterations