ANALYSIS OF THE PASSENGERS EFFECT ON CHAOTIC VIBRATIONS OF A NONLINEAR FULL VEHICLE MODEL

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FAKHRAEI JAVAD; MOHAMMAD KHANLO HESHMATALLAH; GHAYOUR MOSTAFA

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Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:1 Page(s): 173-184

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Title

ANALYSIS OF THE PASSENGERS EFFECT ON CHAOTIC VIBRATIONS OF A NONLINEAR FULL VEHICLE MODEL

Author(s)

FAKHRAEI JAVAD | MOHAMMAD KHANLO HESHMATALLAH | GHAYOUR MOSTAFA | Issue Writer Certificate

Keywords

CHAOTIC VIBRATIONSQ2

VEHICLE ELEVEN DEGREES OF FREEDOMQ2

PIONCARE SECTIONQ2

TIME DELAYQ1

Abstract

In this paper, the effect of passengers on the CHAOTIC VIBRATIONS of the full vehicle model is investigated. The vehicle system is modeled as full nonlinear seven degrees of freedom with an additional one -degree of freedom for each passenger. Four passengers are added sequentially to the vehicle that produces eight, nine, ten and eleven degrees of freedom models, respectively. The effect of passengers on the CHAOTIC VIBRATIONS of vehicle is studied for the above mentioned cases. The nonlinearities of the system are due to the nonlinear springs and dampers that are used in the suspension and tires. Roughness of the road surface is considered as sinusoidal waveforms with TIME DELAY for tires. The governing differential equations are extracted by Newton-Euler laws and are solved numerically via forth-order Runge-Kutta method. The analysis is conducted first by detecting the unstable regions of the system and is then followed by a specific excitation frequency, where there is possibility of chaos. The dynamic behavior of the system is investigated by special nonlinear techniques such as bifurcation diagram, power spectrum, PIONCARE SECTION and maximum Lyapunov exponents. The obtained results represent different types of nonlinear dynamic absorbers in the vehicle with and without passengers. Taking the passengers in to consideration and increasing the mass of the system can result in significant changes in the dynamic behavior which improves the chaotic vibration of the vehicle.

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APA: Copy

FAKHRAEI, JAVAD, MOHAMMAD KHANLO, HESHMATALLAH, & GHAYOUR, MOSTAFA. (2015). ANALYSIS OF THE PASSENGERS EFFECT ON CHAOTIC VIBRATIONS OF A NONLINEAR FULL VEHICLE MODEL. MODARES MECHANICAL ENGINEERING, 15(1), 173-184. SID. https://sid.ir/paper/179286/en

Vancouver: Copy

FAKHRAEI JAVAD, MOHAMMAD KHANLO HESHMATALLAH, GHAYOUR MOSTAFA. ANALYSIS OF THE PASSENGERS EFFECT ON CHAOTIC VIBRATIONS OF A NONLINEAR FULL VEHICLE MODEL. MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(1):173-184. Available from: https://sid.ir/paper/179286/en

IEEE: Copy

JAVAD FAKHRAEI, HESHMATALLAH MOHAMMAD KHANLO, and MOSTAFA GHAYOUR, “ANALYSIS OF THE PASSENGERS EFFECT ON CHAOTIC VIBRATIONS OF A NONLINEAR FULL VEHICLE MODEL,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 1, pp. 173–184, 2015, [Online]. Available: https://sid.ir/paper/179286/en

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