Investigation of a seat suspension installed with compact variable stiffness and damping rotary magnetorheological dampers

Deng, Lei; Sun, Shuaishuai; Christie, Matthew; Ning, Donghong; Jin, Shida; Du, Haiping; Li, Weihua

doi:10.1016/j.ymssp.2022.108802

Cited by 48 publications

(25 citation statements)

References 43 publications

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“…The test results of the above designs are shown for up to 4 Hz. Another seat suspension is presented by L. Deng et al 27 , in which rotating magnetorheological dampers are arranged at the intersection of a scissor-like arrangement. In addition, one of the magnetorheological dampers is directly in the force flow.…”

Section: State Of the Artmentioning

confidence: 99%

A compact adjustable hydraulic damper with symmetric high load behavior enabled by selective laser melting

Heyden

Hofmann

Meboldt

et al. 2023

Journal of Low Frequency Noise, Vibration and Active Control

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This publication addresses the development of a compact, adjustable hydraulic damper that meets the requirements for vibration testing. Dampers from the literature do not meet all the requirements, such as compact design, vibration resistance, high strength, broadly adjustable and dominantly symmetrical damping, and modularity. Additive manufacturing (AM) enables the design of integral and compact systems that can compensate for several disadvantages of known damping systems. Three stages of development are presented, from a proof of concept to a prototype manufactured by Stereolithography (SLA) as Vat Photopolymerization (VPP-UVL/P) to a ready-to-use hydraulic damper manufactured by Selective Laser Melting (SLM) as Laser Powder Bed Fusion (PBF-LB/M). The final additively manufactured damper is much more compact due to its geometric freedom in the design phase and requires a much smaller number of components. The damper has been tested over a wide range of operating conditions and has proven its reliable damping performance even under high loads. This performance makes it suitable for many other systems subject to vibration.

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Section: State Of the Artmentioning

confidence: 99%

A compact adjustable hydraulic damper with symmetric high load behavior enabled by selective laser melting

Heyden

Hofmann

Meboldt

et al. 2023

Journal of Low Frequency Noise, Vibration and Active Control

View full text Add to dashboard Cite

show abstract

“…It was proved that, compared with the passive suspension, the properly adjusted Skyhook algorithm could improve the vehicle handling (Krauze et al, 2019). Many researchers have applied magnetorheological damper to seat suspension, and studies show that it can significantly improve the vibration control performance of seat suspension (Deng et al, 2022b; Zuo et al, 2021). There are studies on large magnetorheological dampers for applications in civil and structural engineering, etc.…”

Section: Introductionmentioning

confidence: 99%

Design and experimental research of stepped bypass magnetorheological damper

Yang

Zhu

Song

et al. 2023

Journal of Intelligent Material Systems and Structures

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In order to meet the damper performance requirements of heavy vehicles, a stepped-bypass magnetorheological damper is proposed. The mathematical model of damping force is deduced, and its mechanical properties are numerically simulated. Then the damper is manufactured, and the mechanical properties of the stepped bypass magnetorheological damper are experimentally studied. The simulation are consistent with the experimental results. The damper is optimized by orthogonal optimization design test. Finally, it is concluded that the maximum output damping force of the stepped bypass magnetorheological damper is about 4500 N, and the adjustable coefficient K is about 5.4. After optimization, the damping force of the stepped bypass magnetorheological damper is increased by at least 5.3%, and the adjustable coefficient K is at least 1.37 times that before optimization, which is 13% wider than that before optimization.

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“…In addition to negative stiffness damper and inertial damper scheme, the MR damper based damping schemes becomes a popular solution because of its adjustability and intelligence (Deng et al, 2022;Du et al, 2011;Li et al, 2010). While the previous researches on MR damper based schemes control have been noted that the practicality and stability were limited by the involved redundant state estimate data and complex control algorithm (Li et al, 2000(Li et al, , 2020bXu et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Multimode vibration control of stay cables using pseudo negative stiffness MR damping system

Zhao

et al. 2023

Journal of Intelligent Material Systems and Structures

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At present the vibration control of stay cable suffers from low damping effectiveness in single mode vibration caused by the limitation of damper installation position as well as the poor modal compatibility, that is, a rapid degradation performance when the actual mode deviates from the designed optimal mode. In this paper, one practical semi-active magnetorheological (MR) damper based control solution is proposed to address the problems faced in multi-modal vibration control of stay cables. The semi-active pseudo negative stiffness (PNS) control strategy takes full account of the MR damper’s mechanical characteristics and the demands of the stay cable vibration control. Compared with the linear equivalent model, the proposed time-varying model exhibits more details of the damping force and the nonlinear response of the damped stay cable, which shows its essential role in the optimal design of MR-PNS scheme. Then the optimal design method of MR-PNS multi-modal vibration control for stay cable is summarized by taking the first three modes vibration control of the J20 cable in Nanjing Baguazhou Yangtze River Bridge as simulation examples. The simulations of cross-modal, multi-modal and wind-induced vibration cases are conducted respectively, while the results show that the optimal designed multi-modal MR-PNS scheme can simultaneously exceed the passive maximum modal damping ratio within first three modes. The advantages of the proposed MR-PNS method in high damping efficiency and modal compatibility could be verified by comparing with the passive multi-modal damping solution.

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Investigation of a seat suspension installed with compact variable stiffness and damping rotary magnetorheological dampers

Cited by 48 publications

References 43 publications

A compact adjustable hydraulic damper with symmetric high load behavior enabled by selective laser melting

A compact adjustable hydraulic damper with symmetric high load behavior enabled by selective laser melting

Design and experimental research of stepped bypass magnetorheological damper

Multimode vibration control of stay cables using pseudo negative stiffness MR damping system

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