Influence of MR damper response time on semiactive suspension control efficiency

Strecker, Zbyněk; Mazůrek, Ivan; Roupec, Jakub; Klapka, Milan

doi:10.1007/s11012-015-0139-7

Cited by 50 publications

(38 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, magnetorheological (MR) dampers are receiving significant attention in applications of vibration isolation due to the controllable characteristics of MR fluid [17,25,27]. An MR damper is a semi-active device that contains a hydraulic fluid whose viscosity is controllable upon the application of an external magnetization field.…”

Section: Abstract: Magnetorheological Damper á Frequency Dependent Momentioning

confidence: 99%

A novel frequency dependent model based on trigonometric functions for a magnetorheological damper

Boada

Díaz

2017

Meccanica

View full text Add to dashboard Cite

., Díaz, V. (2017 (1) it is based on algebraic functions instead of differential equations, so that it does not present convergence problems when noisy inputs from exper-imental measurements are used; (2) the number of parameters is reasonable, so that it makes the model computationally efficient in the context of parameter identification and (3) the model has to take into account the variation of the parameters as a function, not only of the applied current but also of the frequency of excitation. Experimental results confirm that the proposed frequency dependent MR damper model improves the accuracy of the model in force simulation.

show abstract

Section: Abstract: Magnetorheological Damper á Frequency Dependent Momentioning

confidence: 99%

A novel frequency dependent model based on trigonometric functions for a magnetorheological damper

Boada

Díaz

2017

Meccanica

View full text Add to dashboard Cite

show abstract

“…To secure effective control of the system, the response time of the MR damper should be smaller than approximately 1/10 of the highest controlled frequency of the system. If the response time is longer, the system is not able to react on the change of the damper state and the efficiency is lower [ 33 , 34 ]. Koo et al [ 35 ] measured the transient response of the LORD Motion Master automotive damper.…”

Section: Introductionmentioning

confidence: 99%

Novel Approaches to the Design of an Ultra-Fast Magnetorheological Valve for Semi-Active Control

et al. 2021

Self Cite

View full text Add to dashboard Cite

This article presents a list of suitable techniques and materials leading to the design of an ultra-fast magnetorheological (MR) valve. Two approaches for achieving the short response time are proposed: (a) by means of material, and (b) by means of the shape. Within the shape approach, the revolutionary technique of 3D metal printing using a selective laser melting (SLM) method was tested. The suitability of the materials and techniques is addressed based on the length of the response time, which is determined by the FEM. The simulation results determine the response time of the magnetic flux density on the step signal of the current. Subsequently, the response time is verified by the measurement of the simple magnetorheological valve. The following materials were tested: martensitic stainless steel AISI 420A (X20Cr13), cutting steel 11SMn30, pure iron for SLM, Sintex SMC STX prototyping material, ferrite N87, and Vacoflux 50. A special technique involving grooves was used for preventing eddy currents on materials with a high electrical conductivity. The simulation and experimental results indicate that a response time shorter than 2.5 ms can be achieved using materials such as Sintex SMC prototyping, ferrite N87, and grooved variants of metal pistons.

show abstract

“…Savaresi (2004) used measured signal for excitation of the model, but also neglected the response time of MR damper. Strecker et al (2015) studied the influence of response time on reachable comfort and proved, that shorter response time has a positive influence on reachable comfort. Neglecting the real value of an MR damper response time in models gives better results than it is possible to reach on a real system.…”

Section: Introductionmentioning

confidence: 99%

Semiactive Seat Suspension for Agricultural Machines

Zindulka¹,

Strecker²,

Jeniš³

2020

Engineering Mechanics 2020

View full text Add to dashboard Cite

This paper deals with the simulation of a seat suspension with a magnetorheological (MR) damper for agricultural machines. The dynamic model of the seat is a single degree of freedom model with non-linear damping characteristics and response time of the damper. In the model, three control algorithms were implementedtwo-state Skyhook, Skyhook linear approximation damper control, and Acceleration Driven Damper control. The excitation signal for the model was a real record of acceleration measured on the frame of the tractor. The suspension quality was compared using a standard deviation of acceleration. Results have proven significant improvement in suspension quality when any of the three mentioned algorithms was used.

show abstract

Influence of MR damper response time on semiactive suspension control efficiency

Cited by 50 publications

References 16 publications

A novel frequency dependent model based on trigonometric functions for a magnetorheological damper

A novel frequency dependent model based on trigonometric functions for a magnetorheological damper

Novel Approaches to the Design of an Ultra-Fast Magnetorheological Valve for Semi-Active Control

Semiactive Seat Suspension for Agricultural Machines

Contact Info

Product

Resources

About