Modelling and control of a semi-active dual-chamber hydro-pneumatic inerter-based suspension system

Zhu, Zhihao; Wang, Ruochen; Lin, Yang; Sun, Zeyu; Meng, Xiangpeng

doi:10.1177/0954407021990916

Cited by 12 publications

(6 citation statements)

References 32 publications

(28 reference statements)

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“…In recent years, vibration isolation technology plays an increasingly important role in precision manufacturing [1,2], precision instruments [3,4] and automatic suspension [5][6][7]. Compared to other vibration isolation devices, the pneumatic vibration isolator (PVI) has the advantages of low natural frequency [8], variable stiffness rate [9], long life and high energy storage [10,11].…”

Section: Introductionmentioning

confidence: 99%

Research on the Pressure Regulator Effect on a Pneumatic Vibration Isolation System

Shi

Sun

et al. 2022

Chin. J. Mech. Eng.

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The pneumatic vibration isolator (PVI) plays an increasingly important role in precision manufacturing. In this paper, aiming to detect the performance of the pressure regulator in the PVI system, a PVI testing system with a pressure regulator is designed and developed. Firstly, the structure of the pneumatic spring is presented and analyzed, and the nonlinear stiffness is obtained based on the ideal gas model and material mechanics. Then, according to the working principle and continuity equations of ideal airflow, a dynamic model of the PVI system with a pressure regulator is established. Through the simulation analysis, the vibration isolation performance is improved with the efficient and precise pressure regulator. The average values of both the vibration velocity and transmission rate decrease when the vibration is set to 4, 10, 20 and 40 Hz, respectively. The experiments demonstrate the reliability and effectiveness of the pressure regulator. This achievement will become an important basis for future research concerning precision manufacturing.

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Section: Introductionmentioning

confidence: 99%

Research on the Pressure Regulator Effect on a Pneumatic Vibration Isolation System

Shi

Sun

et al. 2022

Chin. J. Mech. Eng.

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“…In conclusion, the introduction of the inerter enriches the research and development of the suspension. [26][27][28][29][30] However, the mechanical ISD suspension has the problems of a large number of components, complex structure, and not easy to arrange in real vehicles. Therefore, this paper integrates the hydro-pneumatic suspension with the fluid inerter and designs a new lateral interconnected hydro-pneumatic ISD suspension, which utilizes a helical channel to connect the left and right accumulators, the piston pushes the fluid into the helical channel, and the high-speed flowing fluid stores a large amount of kinetic energy to amplify the initial inertia of the fluid.…”

Section: Introductionmentioning

confidence: 99%

“…In conclusion, the introduction of the inerter enriches the research and development of the suspension. 26–30…”

Section: Introductionmentioning

confidence: 99%

Design and test of lateral interconnected hydro-pneumatic ISD suspension

Nie

Zhao

Zhang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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Aim to balance the ride comfort and handling stability of vehicles and improve suspension performance, this paper presents a novel lateral interconnected hydro-pneumatic “inerter-spring-damper” (ISD) suspension integrating a hydro-pneumatic suspension and a fluid inerter, which realizes the lateral connection of the suspension through the inerter. The equivalent mathematical model of the lateral interconnected ISD suspension is established; the 15-degree-of-freedom (DOF) model of the vehicle is built in AMESim, and the key parameters are optimized by genetic algorithm. The response characteristics of the novel hydro-pneumatic ISD suspension and traditional hydro-pneumatic suspension under pulse and random input are comparatively analyzed. The lateral interconnected hydro-pneumatic ISD suspension prototype is developed and tested on the bench. The simulation and test results prove that the proposed new suspension structure has a more effective shock absorption performance than the traditional hydro-pneumatic suspension. Overall, the novel hydro-pneumatic ISD suspension better consider to the ride comfort and handling stability, and the structure is simple, compact, and easy to deploy on practical vehicles.

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“…Pintado et al [13] proposed a fusion index measured by a thermodynamic model of a pneumatic vibration isolator to obtain a simple model of the airflow of the limiter. Zhu et al [14] studied a new type of semiactive dual-chamber hydropneumatic inerter-based suspension. Zhao et al [15] proposed an integrated sliding mode control-two-point wheelbase preview strategy for the semiactive air suspension system with a gasfilled adjustable shock absorber.…”

Section: Introductionmentioning

confidence: 99%

A Magnetoelectric Hybrid Hydraulic Damper for the Mining Robot Suspension System

Zhang³

et al. 2021

Shock and Vibration

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In order to improve the damping and controllability of the mining robot suspension system, a new magnetoelectric hybrid suspension hydraulic damper, which is a semiactive suspension damper, is proposed based on the traditional hydraulic damper by introducing the magnetic-electric hybrid suspension structure. The structure and working principle of the damper are introduced, respectively, and the mathematical models of the equivalent stiffness and equivalent damping of the system are calculated by the magnetic circuit method and the oil circuit method, while AMESim/Simulink cosimulation is carried out. In order to test the damping performance, a prototype of the magnetoelectric hybrid suspension hydraulic damper was fabricated. The results show that the vibration displacement amplitude can be reduced by 20% and the vibration acceleration amplitude can be reduced by 10% by adjusting the stiffness and damping of the system due to the magnetoelectric hybrid suspension structure. Moreover, the experimental results are consistent with the simulation results, which verify the effectiveness and superiority of this type of damper.

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Modelling and control of a semi-active dual-chamber hydro-pneumatic inerter-based suspension system

Cited by 12 publications

References 32 publications

Research on the Pressure Regulator Effect on a Pneumatic Vibration Isolation System

Research on the Pressure Regulator Effect on a Pneumatic Vibration Isolation System

Design and test of lateral interconnected hydro-pneumatic ISD suspension

A Magnetoelectric Hybrid Hydraulic Damper for the Mining Robot Suspension System

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