A Parametric Study on Performance of Semi-active Suspension System with Variable Damping Coefficient Limit

Qazi, Abroon; Khan, Afzal; Khan, Muhammad Tahir; Noor, Sahar

doi:10.1016/j.aasri.2013.10.024

Cited by 14 publications

(7 citation statements)

References 5 publications

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“…A robust quarter-car control scheme was created in [4] along with a road disturbance profile with a sliding mode controller. According to the variable damping coefficient limit, semi-active suspension systems were created in Matlab/Simulink in [5] and system's damping coefficient limit of 4000Ns/m performed best when considering ride comfort. Theoretical and experimental analyses of rail vehicles were modeled in [6] using electro-mechanic similarity theory.…”

Section: Imentioning

confidence: 99%

Dynamic Behavior and Force Analysis of the Full Vehicle Model using Newmark Average Acceleration Method

Yildirim

Esen

2020

Eng. Technol. Appl. Sci. Res.

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In this study, the dynamic interaction between road and vehicle is modeled. For this purpose, a full vehicle model with eight degrees of freedom is considered. The equations of motion of the whole system are derived by the D’Alambert method and numerical solutions are obtained by the Newmark average acceleration method. Due to varying road roughness, the forces affecting the driver and the vehicle-components are analyzed in detail. Also, vertical and rotational displacements, velocities, and accelerations are examined, and results graphs are given. Two different pre-defined road profiles, created as non-random road excitation, and five different vehicle speeds are presented and analyzed.

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Section: Imentioning

confidence: 99%

Dynamic Behavior and Force Analysis of the Full Vehicle Model using Newmark Average Acceleration Method

Yildirim

Esen

2020

Eng. Technol. Appl. Sci. Res.

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“…Qazi et al (2013) presented modeling of SAS system using quarter car model in Simulink environment. To modulate the damping coefficient value, fuzzy logic controller was modeled using Fuzzy Tool Box.…”

Section: Literature Reviewmentioning

confidence: 99%

Mathematical modelling and experimental validation of mono-tube shock absorber

Jugulkar

Singh

Sawant

2016

WJE

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Purpose The work presented in this paper is concerned with mathematical modeling and experimental validation of mono-tube shock absorber. This paper aims to create damper model to predict accurately damping force, and experimental analysis is done by varying the various parameters, such as flow area in bleed(Ab), mass (M) and operating frequency(?). Design/methodology/approach Here, input is given in the form of sinusoidal excitation, and the output is received as a numerical data of the displacement transmissibility. These data are then processed to get the values of transmissibility and magnification factor for various frequency ratios. They are then plotted to have transmissibility and frequency response curves, as it is a generally accepted measure of how well the system is isolated from its surroundings. Findings It is better to have low transmissibility (larger bleed area), for lower suspension velocity, as it will reduce maximum acceleration transmitted to the sprung mass. However, for higher suspension velocity, bleed area should be low (higher transmissibility) to reduce displacement of tyre from road. Originality/value The development of faster vehicles and also the requirements of smoother and more comfortable rides have led to the fitment of dampers on almost on all present day vehicles. Shock absorbers have a significant influence on handling performance and riding comfort. Shock absorber plays an important role not only for comfort of the riders of the vehicle but also in the performance and life of the vehicle. However, no further reduction of vehicle vibration can be expected for using the optimum values of damping coefficient and spring stiffness for the shock absorber. Thus, it is necessary to make modification to improve the functions of shock absorber.

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“…To solve performance improvement limitation of the conventional passive suspension with constant stiffness and damping coefficient, the active suspension real-time gives active control force to satisfy vehicle ride comfort and handling stability enhancement requirement [1], [2]. However, the active suspension requires a large amount of energy to suppress the road excitation [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on PMSM Ball Screw Actuator and Structural Design Suggestion of Featured Active Suspension

2020

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Aiming to develop a practical active suspension, a PMSM ball screw actuator prototype is manufactured and experimented for parameter identification. Based on identification results, a new doublevibration-reduction-structure for the featured active suspension is proposed to cope with the problem caused by the actuator's overlarge equivalent inertial mass. Unlike using a resistance to absorb output energy of the actuator, a method of varying charge voltage in steps is utilized to reclaim vibration energy into the battery pack directly. The mechanical and energy-regenerative characteristics are tested for verification of the marked parameters and identification of the unmarked parameters, especially for the Coulomb damping and the equivalent inertial mass of the actuator prototype. Besides, a high energy-regenerative efficiency and a large capability of electromagnetic control force are achieved, the overlarge equivalent inertial mass exists. To reduce the amplified demand of the active control force caused by the actuator's overlarge equivalent inertial mass directly exposed to the unsprung mass acceleration, the new double-vibration-reductionstructure (DVRS) based active suspension structure scheme suggestion with an added-vibration-reductionstructure (AVRS) between the actuator and the unsprung mass is proposed. Regulated by the corresponding LQG controller, the proposed active suspension can achieve almost the same performance of the conventional ideal active suspension.

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A Parametric Study on Performance of Semi-active Suspension System with Variable Damping Coefficient Limit

Cited by 14 publications

References 5 publications

Dynamic Behavior and Force Analysis of the Full Vehicle Model using Newmark Average Acceleration Method

Dynamic Behavior and Force Analysis of the Full Vehicle Model using Newmark Average Acceleration Method

Mathematical modelling and experimental validation of mono-tube shock absorber

Experimental Research on PMSM Ball Screw Actuator and Structural Design Suggestion of Featured Active Suspension

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