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Energies 2017, 10(5), 645; doi:10.3390/en10050645

Active Vibration Control of Swash Plate-Type Axial Piston Machines with Two-Weight Notch Least Mean Square/Filtered-x Least Mean Square (LMS/FxLMS) Filters

Maha Fluid Power Research Center, Purdue University, Lafayette, IN 47905, USA
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Author to whom correspondence should be addressed.
Academic Editor: K.T. Chau
Received: 30 March 2017 / Revised: 21 April 2017 / Accepted: 2 May 2017 / Published: 6 May 2017
(This article belongs to the Special Issue Energy Efficiency and Controllability of Fluid Power Systems)
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Abstract

In this paper, swash plate active vibration control techniques were investigated utilizing the weight-limited multi-frequency two-weight notch Least Mean Square (LMS) filter with unit delay compensation and multi-frequency two-weight notch Filtered-x Least Mean Sqaure (FxLMS) filter with offline modeling to achieve adjustable swash plate vibration reduction at the desired frequency. Simulation studies of the high fidelity pump control system model including realistic swash plate moments are presented to demonstrate the feasibility of the swash plate active vibration control. A 75-cm3/rev swash plate type axial piston pump was modified to implement a high bandwidth pump control system which is required for canceling the swash plate vibration. High speed real-time controllers were proposed and realized using an National Instrument LabVIEW Field Programmable Gate Array (FPGA). Vibration measurements using a tri-axial swash plate acceleration sensor were conducted to show the influence and effectiveness of the proposed swash plate active vibration control system and algorithms. View Full-Text
Keywords: active vibration control; axial piston machine; swash plate vibration; adaptive Least Mean Square (LMS) filter; two-weight notch LMS filter; two-weight notch FxLMS filter active vibration control; axial piston machine; swash plate vibration; adaptive Least Mean Square (LMS) filter; two-weight notch LMS filter; two-weight notch FxLMS filter
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kim, T.; Ivantysynova, M. Active Vibration Control of Swash Plate-Type Axial Piston Machines with Two-Weight Notch Least Mean Square/Filtered-x Least Mean Square (LMS/FxLMS) Filters. Energies 2017, 10, 645.

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