Category: 4. Suspension System

The Longitudinal Location of CG W -Total car weight, Rf -Ground reaction at front Rr-Ground reaction at rearRR-Ground reaction at right wheelsRL -Ground reaction at left wheelsL -wheel baseT -car tracka –position of CG behind the front axleb -position of CG in front of the rear axlex –position of CG from the right wheelsy –position of CG…

O rings are used in hydraulic cylinder sealing due to their effect need shape rectangular section rings are not suited for reciprocating motion and are only in static application; thus secular shaped seal are more preferable for this; we use o type for both static and dynamic seals. Material selection Reasons to select If Di is…

The link is connected to the pedal and the base by pin joint. There are two links used to connect the socket and the base. Material selection Where Acr = cross sectional area of the link which must be the least Let us use factor of safety of  Then  But in practical case the side of the…

The use of the ball in the hydraulic system is to control the flow of oil out of the cylinder. The ball is pushed by the spring. In order to not go through the spring the ball should have the same or larger diameter than the spring. There is no head to design the ball.…

Material selection Malleable cast iron with the following material property can be selected as pin Design analysis 2 Pin in the plunger socket joint, Since 130<150Mpa there for the design is safe.

The poppet valve is made tighter to compress the spring and push the ball which pushes fluid out. This valve is against spring force and pressure force. Where, t = human force Fs = spring force Ff = force due to the fluid Consideration, Shear area = 12.7 mm2 Tensile strength area = 14.2 mm2 Material selection Design analysis From…

Inside diameter of pipe D = 1.13√Q/V Thickness of pipe  Let assume that Q = 40 m3/min V = 2000 m3/min From the weight of the car and diameter of cylinder. We got pressure of 324.8Kpa. From Table 8.2, we find for steel pipe c=3mm there for thickness of the pipe and σt = 40 Mpa Design of Spring Mechanical springs…

The plunger is the pump cylinder. Material selection is the same material as the main piston which can be used as plunger material. Design analysis Force on the plunger in compression force due to pressure Now to find the plunger lead thickness tpl we use the following equation  where tpl = plunger lead thickness d2 = bore diameter of cylinder…

The reservoir must be stable non-reactive material; it is not subjected to any type of stress except when the cover plate is tightened the stress resulting from this tightening action can be neglected since it may not bring significant effect. Material selection The reservoir only stores the oil and is not subjected to any type…

The basic function of the hydraulic cylinder is to convert fluid power into linear machine lift force at that time the cylinder is subjected to internal pressure of the fluid or oil. Since the internal pressure should be high enough to sustain the load then the cylinder must be a heavy-duty cylinder which is expected…