1-13 of 13
Keywords: engines
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. February 2012, 134(1): 011003.
Published Online: December 22, 2011
... waves render the engine to be inherently reversible and thus highly efficient. The behavior of this class of harvesters is modeled using the lumped-parameter approach. The developed model is a multifield model which combines the descriptions of the acoustic resonator, feedback loop, and the regenerator...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. December 2011, 133(6): 061015.
Published Online: November 28, 2011
... at minimum current (4 A). 11 11 2010 13 04 2011 28 11 2011 28 11 2011 automotive components engines fluidic devices frequency-domain analysis friction hydraulic actuators hydraulic drives magnetomechanical effects magnetostrictive devices mountings power consumption...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. December 2010, 132(6): 061010.
Published Online: October 8, 2010
...T. Elnady; M. Åbom; S. Allam One of the main sources of noise of a vehicle is the engine where its noise is usually damped by means of acoustic mufflers. A very common problem in the modeling of automotive mufflers is that of two flow ducts coupled through a perforate. A new segmentation approach...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. August 2010, 132(4): 041012.
Published Online: July 15, 2010
...S. Arzanpour; M. F. Golnaraghi With the new improvements in the fuel economy engines and to enhance the passenger’s comfort, the topic of active vibration cancellation has received a lot of attention recently by both the automotive industry and researchers. Engine mounts and bushings...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. December 2009, 131(6): 061006.
Published Online: November 18, 2009
...Akira Saito; Matthew P. Castanier; Christophe Pierre An efficient methodology for predicting the nonlinear forced vibration response of a turbine engine rotor with a cracked blade is presented and used to investigate the effects of the damage on the forced response. The influence of small random...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. October 2009, 131(5): 051012.
Published Online: September 25, 2009
... and started to be used in some automobile engines. However, only the linear dynamical characteristics of the roller type CPVA have been focused, and the influence of the nonlinearity affecting on vibration suppression has not been clarified. This study mainly focuses on the explanation of nonlinear dynamical...
Journal Articles
Article Type: Technical Briefs
J. Vib. Acoust. August 2009, 131(4): 044501.
Published Online: July 14, 2009
...-powered MR damper, a single-degree-of-freedom engine mount system using the MR damper is simulated. The governing equation of motion for the engine mount system is derived. A parametric study is conducted to find the optimal stiffness of the energy-harvesting DVA for the engine mount system. The isolation...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. April 2009, 131(2): 021008.
Published Online: February 18, 2009
...Hongbiao Yu; K. W. Wang For bladed-disk assemblies in turbomachinery, the elements are often exposed to aerodynamic loadings, the so-called engine order excitations. It has been reported that such excitations could cause significant structural vibration. The vibration level could become even more...
Journal Articles
Article Type: Technical Papers
J. Vib. Acoust. October 2007, 129(5): 559–566.
Published Online: May 21, 2007
... the mistuning issue via mechanical tailoring. Few have focused on developing effective vibration control methods for such systems. This study extends the piezoelectric network concept, which has been utilized for mode delocalization in periodic structures, to the control of mistuned bladed disks under engine...
Journal Articles
Article Type: Technical Papers
J. Vib. Acoust. August 2007, 129(4): 417–424.
Published Online: April 9, 2007
...A. R. Ohadi; G. Maghsoodi In this paper, vibration behavior of engine on the nonlinear hydraulic engine mount, including inertia track and decoupler, is studied. In this regard, after introducing the nonlinear factors of this mount (i.e., inertia and decoupler resistances in turbulent region...
Journal Articles
Article Type: Technical Papers
J. Vib. Acoust. October 2007, 129(5): 590–600.
Published Online: February 26, 2007
...Sudhir Kaul; Anoop K. Dhingra; Timothy G. Hunter This paper examines the influence of frame flexibility on the optimization of an engine mounting system for enhanced vibration isolation in motorcycles. A theoretical model is developed to represent the structural dynamics of an engine mount system...
Journal Articles
Article Type: Technical Papers
J. Vib. Acoust. April 2007, 129(2): 179–192.
Published Online: September 8, 2006
... and illustrate the impacts of flexibility on the closed-loop system performance and stability, a problem of automotive engine vibration isolation from a flexible subframe is presented where the neglected dynamics are represented as an output multiplicative model perturbation. A physical explanation as to why...
Journal Articles
Article Type: Technical Papers
J. Vib. Acoust. January 2003, 125(1): 64–67.
Published Online: January 6, 2003
...Dara W. Childs, Leland T. Jordan Professor of Mechanical Engineering, Yamamoto [1] examined a vertical Jeffcott rotor model with bearing clearances and showed that a small bearing “dead-band” clearance could have a dramatic influence on synchronous rotor response. Recent test results...