An automobile suspension system is modeled as a 2-DoF
vibration system as shown in Figure below
Derive the equation of motion
Determine the natural frequencies of the automobile
with the following data
Mass (mm) = 1000kg1000kg
Momen of inertia (ImIm) = 450kgm2450kgm2
Distance between front axle and C.G. (LfLf) =
1.2m1.2m
Distance between rear axle and C.G. (LfLf) =
1.5m1.5m
Front spring stiffnes (kfkf) = 18kN/m18kN/m
Rear spring stiffnes (krkr) = 17kN/m17kN/m
Front damper coefficient (cfcf) =
3kNs/m3kNs/m
Rear damper coefficient (cfcf) = 2kNs/m
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An automobile suspension system is modeled as a 2-DoF
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8.9 An automobile with four wheels is about to pass over a speed bump as shown in the insert in Eigure 8.35a. The velocity of the vehicle at that time is 10 km/h. The vehicle is supported by a suspension system that consists of one coilover per wheel (a coilover is a combination of a shock absorber, or a damper, enclosed by a coil spring). The analytical model of the suspension system is illustrated in Figure 8.35b. The mass of...
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Please help.
(3) An automobile running on 4 wheels is about to pass over a speed bump that has a cross section that fits to a sine function of y(x)-5sinßx with B being a constant, and with a maximum width w 8 cm. as illustrated in Figure 1(a). The velocity of the automobile is 20 km/hr at the time of passing over the bump. The vehicle is supported by a suspension system that is consists of one coilover for each...
Homework problem! Need help fast
Example 2: Figure below shows the principle of a vibration damper. The main platform (mass mi) is suspended on a spring/damper system. The suspension has the spring conn Di and the friction coefficient RF. On the platform is a device that produces oscillatioss such as a vibrating sieve (indicated by the dashed box in Figure). The oscillabory force im- posed on the platform by the device can be described as Fit)-Fn(t) D. m. D2 The...
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A vibratory system can be modeled as a...
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