02311nam a2200229 a 4500 vtls000041244 KUKTEM 20251114204408.0 090811t2008 my a f m 000 0 eng|d THE0007274(Local) 201905141133 fawwaz 201204091118 Fida 201107132203 VLOAD 200908141654 VLOAD 200908111039 ida84 UMP TL257 .A87 2008 rs Bc. Mohd Asqalani Naharudin Design and simulation automobile active suspension system / Mohd Asqalani Naharudin Kuantan, Pahang : UMP, 2008 43 p. : ill. (some col.) ; 30 cm. + 1 CD-ROM Project paper (Bachelor of Mechanical Engineering with Automotive) -- Universiti Malaysia Pahang - 2008 The purpose of this project is to design and simulate a semi-active suspension system for a quarter car model by controlling two input, spring stiffness, ks, and damper rate, bs. The performance of this system will be compared with the passive suspension system. There are two parameters to be observed in this study namely, the sprung mass acceleration and the suspension distortion. The performance of this system will be determined by performing computer simulations using the MATLAB and SIMULINK toolbox. For the first experiment, the damper rate was set to constant while spring stiffness was set from 10507 N/m to 131345 N/m. at lower spring stiffness leads improvement in ride quality but increased the suspension distortion at lower time. At second experiment, the spring stiffness was set to constant while the damper rate was from 1000 N.sec/m to 1400 N.sec/m. Increases in damper rate improve the ride quality but slower roll-off will occurred. In the third experiment, the damper rate value was set to maximum while spring stiffness was set to minimum to achieve optimal performance. The simulation results show that the semi-active system could provide significant improvements in the ride quality and road handling compare with the passive system Automobiles Springs and suspension 0 0 0 1 20000 20000 2019-09-04 0 TL257 .A87 2008 rs Bc. 0000038714 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 20000 20000 2019-09-04 0 CD 3555 | TL257 .A87 2008 rs Bc. 0000038715 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 1301 1307 VTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5200*6500*9992