Modeling and Simulation of a Vehicle Suspension with Variable Damping and Elastic Properties versus the Excitation Frequency

Regenerative shock absorber is designed to convert the vibration energy losses from the vehicle suspension into electricity. This paper presents an experimental study on the dynamic characteristics of hydro-magneto-electric-regenerative shock absorber (HMERSA). Study was carried out by developing a prototype of HMERSA and testing its dynamic characteristics. The results were analyzed and discussed. Prototype of the HMERSA consists of hydraulic system and electric generator. The HMERSA was tested using a quarter car suspension test rig with input displacement in various frequency (1.3Hz, 1.5Hz, 1.7Hz) and for HMERSA’s various oil viscousity (ISO VG 10, 32, 46). Sprung mass acceleration and the generated electric power representing the dynamic characteristics of HMERSA were measured. Maximum power 2.5 watt and root mean square acceleration 0.172 m/s2 gained for HMERSA with oil viscousity ISO VG 10 at all excitation frequency.

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Task-space Feedback Control for A Two-link Arm Driven by Six Muscles with Variable Damping and Elastic Properties

Proceedings of the 2005 IEEE International Conference on Robotics and Automation ◽

10.1109/robot.2005.1570123 ◽

2006 ◽

Cited By ~ 6

Author(s):

K. Tahara ◽

Zhi-Wei Luo ◽

S. Arimoto ◽

H. Kino

Keyword(s):

Feedback Control ◽

Elastic Properties ◽

Task Space ◽

Variable Damping

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Test and Analysis about Elastic Properties of Commercial Vehicle Cab Air Spring

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.635-637.320 ◽

2014 ◽

Vol 635-637 ◽

pp. 320-323

Author(s):

Li Ping Li ◽

Li Wang

Keyword(s):

Elastic Properties ◽

Vibration Amplitude ◽

Commercial Vehicle ◽

Dynamic Stiffness ◽

Excitation Frequency ◽

Low Frequency ◽

Initial Pressure ◽

Air Spring ◽

Cab Suspension ◽

Air Bag

The tests about elastic properties of a commercial vehicle cab suspension air spring were carried out. And the experimental results show that: the higher the initial pressure of the air bag, the greater its carrying capacity, and the bigger the damping; at the same excitation frequency and the vibration amplitude, the dynamic stiffness of the air spring is gradually increased as the initial pressure is increased; in the low frequency range, at the same vibration amplitude and inside pressure, the dynamic stiffness of the air spring is increased as the increasing of the excitation frequency.

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Non-Destructive Pore-Scale Approach to Evaluate Elastic Properties of Shale Samples by Imaging, Modeling and Simulation

Nanoscience and Nanotechnology Letters ◽

10.1166/nnl.2019.2919 ◽

2019 ◽

Vol 11 (4) ◽

pp. 548-551

Author(s):

Weifeng Lv ◽

Langqiu Sun ◽

Xu Jin ◽

Shiyu Chen ◽

Tong Li ◽

...

Keyword(s):

Modeling And Simulation ◽

Elastic Properties ◽

Pore Scale ◽

Non Destructive

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Solutions in the Vehicle Suspension

Journal of KONES ◽

10.2478/kones-2019-0107 ◽

2019 ◽

Vol 26 (4) ◽

pp. 185-196

Author(s):

Adrian Ioan Niculescu ◽

Antoni Jankowski ◽

Miroslaw Kowalski ◽

Tudor Sireteanu

Keyword(s):

Mr Damper ◽

Vehicle Suspension ◽

Active Suspensions ◽

Suspension Systems ◽

Damping Coefficients ◽

Shock Absorbers ◽

Damping Characteristics ◽

Long Time ◽

Variable Damping ◽

Magneto Rheological

AbstractThe paper presents a review of the suspension solutions used on the street vehicle up to the now a days, finalising with presentation of their damping characteristics and with evaluation of their advantages or disadvantages. Long time the suspension systems have been dominated by the classic passive suspensions realized with metallic springs, shock absorbers with constant damping coefficients and anti-roll bars, excepting some luxury and sport cars using semi-active and active suspensions. There are presented some semi-active suspension solutions with continuous or discontinuous damping characteristics adjustment and the evolution of the Citroen and other active suspensions. All of them improve in some matter the performances but all of them have not ability to recuperate energy and has auxiliary energy consumption so last period the electromagnetically shock absorbers are researched, the paper presenting some of them. The paper also presents magneto rheological MR damper, solutions for adjustable passive shock absorbers and solutions for passive shock absorbers with variable damping coefficient with the stroke, e.g. Monroe Sensa Trac, Citroën Solution and VZN solution, with their damping characteristics and performances.

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