Question

H Assignment submission -MCE 3 X Bb EMT 4923 Mechanical vibrations x X Cluil ()X nylearn.hct.ac.ae/bbcswebdav/pid-12428971-dt-content-rid-20811679 1/courses/201830 30831/LO2.pdf 6. An underdamped shock absorber for a moon-buggy is to be designed. The system can be considered as simple SDOF system weighing 2500 N as shown in Figure 2 (a) and its damped free vibration response is shown in Figure 2 (b).If the damped period of vibration is to be 0.8 sec and the amplitude x, is to be reduced to one-third in one half cycle 0.4:3 a. Draw the free-body and kinetic diagrams for the system. b. Determine the logarithmic decrement from the response. C. Find the damping ratio using the logarithmic decrement. d. Obtain the undamped and damped natural frequencies of the unit. e. Estimate the spring constant and damping coefficient of the system. DA ENG

note:Please write it with your hand font by A4 sheet

Answer 1

Sslution NeNeiyat 2rN 2500 9.81 Cli-) Logaridi decrement S 2.197 2.137 .1222 0-33 2-11 - 8 32 KER640.9 twn- CE139333