
Grade 12th passDiscuss with colleagues and IITians
The sprung mass of a 4-wheeler is 12 kN and the unsprung mass is 950 N. The combined stiffness of the suspension spring is 48 KN/m and that tyre is 570.4 kN/m. Determine the two natural frequencies of the bounce motion of sprung and unsprung mass if the car travels at 72 km/h over a road of sine wave form with the wavelength of 7.15 m and amplitude of 5 cm. Also determine the critical speeds of the vehicle. (Take acc. Due to gravity as 10 m/s2 )?
The sprung mass of a 4-wheeler is 12 kN and the unsprung mass is 950 N. The combined stiffness of the suspension spring is 48 KN/m and that tyre is 570.4 kN/m. Determine the two natural frequencies of the bounce motion of sprung and unsprung mass if the car travels at 72 km/h over a road of sine wave form with the wavelength of 7.15 m and amplitude of 5 cm. Also determine the critical speeds of the vehicle. (Take acc. Due to gravity as 10 m/s2 )?




