Dynamics and stability of a hydraulic vibrator

Elmuratova, A F; Eshutkin, D. N.; Kozhakhmetova, Assel

doi:10.1007/bf00732774

Cited by 2 publications

(1 citation statement)

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“…The hydraulic vibration is gradually replacing the inertia vibration for its high power density, power transmission and control convenient. At present although the hydraulic vibration forms are various, it can be divided into two categories: one is valve control [1][2][3] and the other is pump-control [4][5][6]. Because of the vibration of the valve control excitation relaying on the valve's fast reversing, there are two shortcomings: throttling loss and interact between the frequency and amplitude.…”

Section: Introductionmentioning

confidence: 99%

A New Hydraulic Excitation Mode with Liquid-Filled Pipe

Kou

et al. 2011

AMR

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The current vibration modes, whether inertial vibration or hydraulic vibration, have some problems such as large power consumption and low energy utilization rate. A new low energy hydraulic excitation mode is presented. This mode takes the high-pressured pipe as the new excitation source. Periodic pressure pulsation generated by wave exciter makes the pipe vibrating. The vibration mode of pipe with fluid-structure interaction is established and solved with numerical method. The modal analysis and the simulation of the vibration have been carried out. An experimental platform is built to verify that the new hydraulic vibration can be exploited.

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Section: Introductionmentioning

confidence: 99%

A New Hydraulic Excitation Mode with Liquid-Filled Pipe

Kou

et al. 2011

AMR

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Stability of Hydraulic Motion Control Systems

Margolis

Hennings

1997

Journal of Dynamic Systems, Measurement, and Control

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High performance hydraulic motion control systems typically consist of a two-stage spool valve which controls flow into an actuator. Feedback of load motion allows an electrical signal into the valve to control large amounts of hydraulic power. These servo-systems are well known to exhibit an instability where they “sing” or “chirp” at high frequency. This instability seems to be configuration-dependent. Here, two submodels are proposed that expose a fluid flow induced instability, and a mechanical instability. The result is parameter groupings which expose these instabilities in a fundamental way.

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Dynamics and stability of a hydraulic vibrator

Cited by 2 publications

References 0 publications

A New Hydraulic Excitation Mode with Liquid-Filled Pipe

A New Hydraulic Excitation Mode with Liquid-Filled Pipe

Stability of Hydraulic Motion Control Systems

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