Keywords: Fluid power; Air-borne noise; Fluid-borne noise; External gear machines
13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden
 Fiebig; W.; 2007; “Location of Noise Sources in Fluid Power Machines;” International Journal of Occupational Safety and Ergonomics; 13 (4); 441-450.
 Vacca A.; Guidetti M.; 2011; Modeling and Experimental Validation of External Spur Gear Machines for Fluid Power Applications; Elsevier Simulation Modeling Practice and Theory; 19 (2011) 2007–2031.
 Vacca A.; Dhar S.; Opperwall T.; 2011; A Coupled Lumped Parameter and CFD Approach for Modeling External Gear Machines; SICFP2011 The Twelfth Scandinavian International Conference on Fluid Power; May 18-20; 2011; Tampere; Finland.
 Dhar S.; Vacca A.; 2012; A Novel CFD- Axial Motion Coupled Model for the Axial Balance of Lateral Bushings in External Gear Machines; Elsevier Simulation and Modeling Practice and Theory. 2012; 26: 60-76.
 Opperwall T.; Vacca A.; “A combined FEM/BEM model and experimental investigation into the effects of fluid-borne noise sources on the air-borne noise generated by hydraulic pumps and motors.” Proceedings of the Institution of Mechanical Engineers; Part C: Journal of Mechanical Engineering Science; First published online on April 22; 2013. (Print publication pending)
 Ortwig; H.; 2005; “Experimental and Analytical Vibration Analysis in Fluid Power Systems;” International Journal of Solids and Structures; 42; 5821-5830.
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 Edge; K. A.; 1999; “Designing Quieter Hydraulic Systems – Some Recent Developments and Contributions;” Proceedings of the Fourth JHPS International Symposium on Fluid Power; Tokyo; Japan; 3-27.
 Hartmann K.; Harms H.H; Lang T. 2012 A Model Based Approach to Optimize the Noise Harmonics of Internal Gear Pumps by Reducing the Pressure Pulsation; 8th International Fluid Power Conference (IFK); March 26-28; 2012; Dresden; Germany.
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 Lätzel; M. Schwuchow; D.; “An innovative external gear pump for low noise applications“ 8th International Fluid Power Conference (IFK); March 26-28; 2012
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 Bonanno; A.; and Pedrielli; F.; 2008; “A Study of the Structure borne Noise of Hydraulic Gear Pumps;” 7th JFPS International Symposium on Fluid Power; 641-646.
 Klop; R. and Ivantysynova; M. 2010. Sound Intensity Measurements to Investigate Noise Generation of Hydrostatic Transmissions Proceedings of the 7th International Fluid Power Conference Aachen 2010 (7IFK); Vol. 2; 229-242
 Ngah; Z. and Edge; K.A.; “The measurement of positive displacement pump and motor noise using sound intensity techniques.” Off-highway Powerplant Congress and Exposition; SAE; Warrendale; USA; pp. 1-6; September; 2001
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 ISO 16902-1:2003 Hydraulic fluid power -- Test code for the determination of sound power levels of pumps using sound intensity techniques: Engineering method - - Part 1: Pumps; 2003.
 Bendant J.S. and Peirsol; A.G.; “Random Data – Analysis and Measurement Procedures.” John Wiley& Sons; INC; ISBN 0-471-31733-0; 2000 Cho; Y. T.; and Bolton; J. S.; 2004; “Acoustical Visualization of a Refrigeration Compressor by using Statistically Optimized Nearfield Acoustical Holography in Cylindrical Coordinates;” NOISE-CON; 175-182