Design of a control law for a semiactive suspension system using a solenoid valve damper

Giua, Alessandro; Melas, Mauro; Seatzu, Carla

doi:10.1109/cca.2004.1387582

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…The damper was filled by 200 ml of MRF Lord MRF 132-DG and pressurized by 30 bar. The piston unit consists of a core (1, 2), sleeve (3), plates (4), piston rod (5), permanent magnet (6), and an electromagnetic coil (7). The important dimensions are shown in Figure 3.…”

Section: Figure 2 Design Of Mr Damper With Permanent Magnetmentioning

confidence: 99%

“…A rapid increase or decrease of damping level (short response time) on the control signal is desired for all real-time S/A control applications [4]. Giua et al [5] simulated influence of damper response time on to S/A control performance. The damper with response time 7 ms exhibits better results in terms of performance S/A suspension system than damping element with response time 30 ms.…”

Section: Introductionmentioning

confidence: 99%

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Insight into the response time of fail-safe magnetorheological damper

Jeniš¹,

Kubík²,

Macháček³

et al. 2020

Smart Mater. Struct.

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The significant problem of magnetorheological (MR) dampers is their poor fail-safe ability. In the case of power supply failure, the damper remains in a low damping state which is dangerous for several technical applications. This can be solved by accommodating a permanent magnet to the magnetic circuit of the damper. Currently, the MR dampers are used in progressive semiactive (S/A) control of suspension systems. The dynamics (force response time) of the damper is an important parameter that affects the performance of semiactive control. The main goal of this paper is to introduce the dynamic behavior of MR damper with a permanent magnet. The damper design with the permanent magnet in the magnetic circuit, transient magnetic simulation including magnetic hysteresis and eddy currents, and experiments are presented. The magnetic field response time and MR damper force response time are measured and also determined from magnetic simulation. The permanent magnet significantly influences the MR damper dynamics. The decrease of the damping force from a fail-safe state -medium damping to off-state -low damping is significantly faster (2 ms, -1A) than the increase to on-state -high damping (12 ms, 1A). The exact value is depending on the electric current magnitude and piston velocity. The damper achieved fail-safe damping force approximately 1/3 of the maximum damping force. The exact value of the fail-safe force is magnetization history-dependent. The maximum dynamic force range is 8.5 which is comparable with the common design of MR damper.

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Section: Figure 2 Design Of Mr Damper With Permanent Magnetmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Insight into the response time of fail-safe magnetorheological damper

Jeniš¹,

Kubík²,

Macháček³

et al. 2020

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…Several studies propose different controlled suspensions in order to minimize acceleration of the mass [7,8].The objective of these studies is to reduce the acceleration of the mass to ensure the comfort of the passengers. In our experiment a proportional integral differential (PID) with feed back on measure of acceleration was used.…”

Section: General Formulationmentioning

confidence: 99%

A Study on Design and Analysis of Hybrid Vibration Damper with Energy Harvesting and Optimal Damping Effect

Rao

Apparao

et al. 2014

J. Inst. Eng. India Ser. C

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“…Several studies propose different controlled suspensions in order to minimize the acceleration of the mass ms ( [10][11][12]).…”

Section: Activementioning

confidence: 99%

Study and Analysis of Anti Vibratory Passive and Active Methods Applied to Complex Mechanical System

Lopez

Malburet

Barraco

2012

Journal of Computational and Nonlinear Dynamics

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This paper studies problematic of a mechanical system composed of different coupled parts submitted to a high speed shock and proposes analysis of anti vibratory passive and active methods based on an experimental and theoretical coupled approach. After a shock, different parts of the system oscillate. If one of them is excited at a particular frequency, such as its proper frequency, important oscillations appear and can lead to the deterioration of the system by introducing important stresses. In this paper, we propose an analysis in order to understand this kind of problem and what we can do to avoid it. Firstly, we discuss problematic and we expose the studied system. In a second time, we develop two approaches of modeling that allow us to understand the phenomenon by carrying out numerical simulations. Then cross checking of model is completed via experimental study on drop test bench. Passive minimization method of vibrations based on experimental and theoretical coupled approach is exposed. Finally, a comparative analysis of different methods of control and experimental results of controlled system are presented.

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Design of a control law for a semiactive suspension system using a solenoid valve damper

Cited by 8 publications

References 8 publications

Insight into the response time of fail-safe magnetorheological damper

Insight into the response time of fail-safe magnetorheological damper

A Study on Design and Analysis of Hybrid Vibration Damper with Energy Harvesting and Optimal Damping Effect

Study and Analysis of Anti Vibratory Passive and Active Methods Applied to Complex Mechanical System

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