Design And Optimization Of Steering System-Books Pdf

Design and Optimization of Steering System
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International Research Journal of Engineering and Technology IRJET e ISSN 2395 0056. Volume 04 Issue 10 Oct 2017 www irjet net p ISSN 2395 0072. Module Calculation, There are following two methods for finding out module. for desired loading conditions, 1 Estimation of module based on BENDING STRENGTH. 2 Estimation of module based on WEAR STRENGTH, Now by using 1st theory we can find module by. P t m b b Y, Where P t load to be Transmitted, m module of gear. Design of Ackerman steering geometry, b Face width of the gear tooth 14 98mm.
b Bending Stress of the Material By putting all these values we got R 3 119m. Y Lewi s constant Its value is 0 32 for No of Teeth 12 Steering Ratio. P t 110 cos 20 103 36 N, Here steering ratio shows the ratio of steering wheel. b M y I rotation to the Ackerman angle rotation So. P t h t 2 b t 3 12, Ratio Steering wheel rotation Ackerman Angle. h height of the tooth rotation, Addendum Dedendum 90 33. 1 5 1 875 2 72, Steering Geometry, t 2 356mm tooth thickness. 103 36 3 375 2 356 2 14 98 2 356 3 12 When a vehicle travels round a bend the inside wheel. must follow a tighter curve than the outside wheel to. 25 172 N mm 2 achieve this the geometry of the steering must be. arranged to turn the inside wheel through a larger angle. Now by putting above values into main equation we get than the outside wheel The Ackerman steering. m P t b b Y 103 36 14 98 25 172 0 32 geometry provides a simple solution to this problem. m 1 0 Shown is a representation of true Ackerman, Now design is made of final component by considering.
Module m 1 50, Turning radius, tan L R D 2, Where L track length 1250 mm. D wheel base 1620 mm, Inner angle 330, Formula 3 car top view. 2017 IRJET Impact Factor value 6 171 ISO 9001 2008 Certified Journal Page 1195. International Research Journal of Engineering and Technology IRJET e ISSN 2395 0056. Volume 04 Issue 10 Oct 2017 www irjet net p ISSN 2395 0072. Ackerman steering geometry has 1620mm wheelbase and. 1250mm track length for formula3 style vehicle To, acquire determined Ackerman geometry outside angle of. vehicle wheel must be larger than inside one In addition. to accomplish this criteria inside angle has been fixed 33. for getting optimal corning consequently outside angle. has been achieved 25 76 in SolidWorks 2013 and also. calculated by cos cos, In steering geometry L and D illustrates wheelbase and. track length respectively and represents outside and. inside angle respectively Turning radius is also elucidates. vehicle corning In SolidWorks 2013 It Is measured from. the center of gravity to the point of intersection of. perpendiculars of front wheel centerlines It has been. measured 3130mm Turning Radius R is calculated, theoretically as.
tan 2 OR tan 2 Universal joint, Motion transmission While using universal joint each joint requires individual. support of bearing it openly increases system s overall. weight Manufacturing cost of universal joint is too much. higher than the other alternatives There were also. generation of wear while rotating the shafts which are. connected to the both ends of universal joint, This condition frequently occurs when joint is not. appropriately lubricated Other alternative to transmit. motion from steering wheel to vehicle wheel is bevel. gears Transmission through bevel gears is more efficient. than universal joint Objective of the steering system is to. attain maximum angle of inside wheel by minimum, rotating steering wheel. Universal joint with shafts, Steering system has motion transmission from the. steering wheel to vehicle wheels Entire motion, transmission is summation of two transmission as.
intermediate transmission and rack Pinion transmission. In Formula 3 car vehicle intermediate transmission can be Design of Bevel transmission. achieved by providing universal joint steering wheel shaft. and pinion shaft This universal joint has been used for Only single transmission ratio 1 1 can be achieved at. transmission in Formula style vehicle both the end of universal joints In flip side bevel gears can. achieve multiple transmission ratio as 1 1 1 2 1 3 etc. Due to this phenomenon transmission rotation can be rise. from the steering wheel to vehicle wheels Bevel gear of. 1 2 ratio has been used to increase transmission from. steering wheel to pinion When single rotation is given to. steering wheel shaft by steering wheel pinion shaft. achieves double rotation and pinion moves on rack, 2017 IRJET Impact Factor value 6 171 ISO 9001 2008 Certified Journal Page 1196. International Research Journal of Engineering and Technology IRJET e ISSN 2395 0056. Volume 04 Issue 10 Oct 2017 www irjet net p ISSN 2395 0072. Actual model of Bevel Gears, Bevel gear of 1 2 ratio has been designed in SolidWorks. 2013 Bevel gear has Pitch circle diameter of 24mm and 12. teeth module 2 While Bevel pinion is designed with half. dimension of PCD and number of teeth to get transmission. of 1 2 ratio, Steering assembly, Rack and Pinion Housing Of pinion on rack As Steering wheel rotates 90 inside. wheel has achieved 33 and outside wheel has achieved. Rack and pinion has been designed to get accurate motion nearly 26 as per the design geometry of Ackerman. transmission from the bevel gear to pinion SS EN9 steering system Consequently when steering wheel is. material has been used to manufacture pinion with rotated 90 complete rotation steering wheel shaft. module of 1 5 and Pitch circle diameter of 18mm and for rotates 90 and bevel gear connected with that shaft also. rack SS410 material has been used with length of 340mm rotates at same rotation so bevel pinion gets twice. Rack and pinion transmission has achieved inside the rotation as 180 because of the transmission ratio 1 2. housing It is manufactured as per the dimension of rack Pinion of rack pinion housing received same rotation and. and pinion moves on rack in respected direction and travel distance. up to half of its circumference r This travel of r on. rack forces tie rods which are connected to knuckle of. wheel Thus wheels of vehicle attains 33 inside and 25. outside way, Design of Rack Pinion Housing, Actual model of Housing. 120mm length has teeth on rack and acquired lock to lock. situation by rotation of pinion on rack as 2 r where r. illustrates radius of pinion It has magnitude of 56 52mm. rack travel Lock to lock situation demonstrates end to end. 2017 IRJET Impact Factor value 6 171 ISO 9001 2008 Certified Journal Page 1197. International Research Journal of Engineering and Technology IRJET e ISSN 2395 0056. Volume 04 Issue 10 Oct 2017 www irjet net p ISSN 2395 0072. Conclusion, Ackerman steering geometry can achieve more inside.
angle than Anti Ackerman steering geometry In Ackerman. steering geometry motion transmission through bevel. gears is more efficient than transmission through, universal joint because universal joint has single. transmission ratio at its both ends, References, 1 Steering System report 2016 of Team Ojaswat. ojaswat com Formula 3 car racing team, 2 Design report of Team 15 Swayspension and. calvin college, 3 http what when how com automobile the. ackermann principle as applied to steering, automobile.
4 https www scribd com doc 58682411 Ackerm, an Steering Formula Derivation. 5 Race Car Vehicle Dynamics By William Dougls, 6 http www rctek com technical handling acker. man steering principle html, 2017 IRJET Impact Factor value 6 171 ISO 9001 2008 Certified Journal Page 1198. steering system is not allowed to use for transmitting motion from steering wheel to tie rods In other hand Ackerman steering compensates all necessities so it is chosen among various systems Calculations Force calculations Weight of the car 330kg Now considering the weight distribution as 40 on

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