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Login to interact Logged in users can save documents, make comments, download and much more Sign in Login to interact Logged in users can save documents, make comments, download and much more Sign in Login to interact Logged in users can save documents, make comments, download and much more Sign in Login to interact Logged in users can save documents, make comments, download and much more Sign in Login to interact Logged in users can save documents, make comments, download and much more Sign in It consists of the upper and lower wishbone arms pivoted to the frame member. This arms resemble the leCer `A` of the Roman Alphabet due to which these are also referred to as `A-arms` .The spring is placed in between the lower wishbone and the underside of the cross member. The vehicle weight is transmiCed from the body and the cross member to the coil spring through which it goes to the lower wishbone member. A shock absorber is placed inside the coil spring and is aCached to the cross member and to lower wishbone memberThe wishbone arms are like chicken wishbone of leCer `V` in shape because of which the system is so called .Because of this shape the not only serve to posion the wheels and transmit the vehicle load to the wheel but these also resist acceleraon, breaking and cohering forces. The upper arms are shorter in length compared to the lower ones. This helps to keep the wheel track constant, thereby avoiding tyre struts thus minimizing tyre wearPROS AND CONS OF DOUBLE WISHBONE SUSPENSIONAdvantages and DisadvantagesThe advantage of a double wishbone suspension is that it is fairly easy to work out the eJect of moving each joint, so the kinemacs of the suspension can be tuned easily and wheel moon can be opmized. It is also easy to work out the loads that diJerent parts will be subjected to which allows more opmized lightweight parts to be designed. They also provide increasing negave camber gain all the way to full jounce travel, unlike the MacPherson strut, which provides negave camber gain only at the beginning of jounce travel and then reverses into posive camber gain at high jounce amounts.The disadvantage is that it is slightly more complex than other systems like a MacPherson strut.Due to the increased number of components within the suspension setup it takes much longer to service and is heavier than an equivalent MacPherson design.One of its primary bene1ts is the increase of negave chamber as a result of the vercal suspension movement of the upper and lower arms. This translates to beCer stability properes for the car as the res on the outside maintain more contact with the road surface. Handling performance also increases. The double suspension system is much more rigid and stable than other suspension systems, thus you would realize that your steering and wheel alignments are constant even when undergoing high amounts of stress. Login to interact Logged in users can save documents, make comments, download and much more Sign in Moving on to the drawbacks of the double wishbone suspension system, it is normally bugged by cost issues as it is a more complicated design to produce. There are many parts to the system, and thus every me any of these malfuncon of fail, your whole system fails. Repair, modi1caon and maintenance costs and complexies for double wishbone suspension systemsare normally higher due to these reasons. This suspension system also proves to be Sexible for design engineers, as the arms of the system can be 1xed at diJerent angles to the surface, parameters such as camber gain, roll center height and swing arm length can be determined and designed Sexibly to suit and road surface in condion.As we have seen, both suspension systems have their own plus points and limitaons. To conclude, double wishbones may perform beCer, but the MacPherson struts would prove to bemore aJordable in the long run.RECOMMENDATIONOpmizaon of Double Wishbone Suspension System with Variable Camber Angle byHydraulic Mechanism-Opmum control camber angle in addion to the vehicle stability is eJecve in the wheel adhesion on road, reducing rubber abrasion and acceleraon and braking

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