Browsing Faculty Works, Department of Mechanical Engineering by Title
Now showing items 1-20 of 268
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3D printing vending machine
(United States Patent and Trademark Office, 2016-08-16)A vending machine for creating a three-dimensional object having an enclosure having an exterior and interior. The interior receives and houses at least one three-dimensional printer. An interface for accepting an instruction ... -
Accelerometer Based Method for Tire Load and Slip Angle Estimation
(MDPI, 2019-04-28)Tire mounted sensors are emerging as a promising technology, capable of providing information about important tire states. This paper presents a survey of the state-of-the-art in the field of smart tire technology, with a ... -
Acoustic Effects Accurately Predict an Extreme Case of Biological Morphology
(American Physical Society, 2009-07-17)The biosonar system of bats utilizes physical baffle shapes around the sites of ultrasound emission for diffraction-based beam forming. Among these shapes, some extreme cases have evolved that include a long noseleaf ... -
Acoustic performance of a stretched membrane and porous blanket combination
(Acoustical Society of America, 1976)The sound absorption performance of an acoustic absorber consisting of a stretched circular membrane placed a short distance in front of a fiberglass blanket was both measured and predicted. Both theoretical and experimental ... -
Acoustics 1991: Active structural acoustic control
(Acoustical Society of America, 1992-01-01)In summary, the ASAC technique has demonstrated much potential in aerospace and marine applications. Future work will center on extending these techniques to broadband disturbances, more complex structures and improved ... -
Activation of bacterial channel MscL in mechanically stimulated droplet interface bilayers
(Springer Nature, 2015-09-08)MscL, a stretch-activated channel, saves bacteria experiencing hypo-osmotic shocks from lysis. Its high conductance and controllable activation makes it a strong candidate to serve as a transducer in stimuli-responsive ... -
Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors
(United States Patent and Trademark Office, 1996-05-07)An active noise control system using a compact sound source is effective to reduce aircraft engine duct noise. The fan noise from a turbofan engine is controlled using an adaptive filtered-x LMS algorithm. Single multi ... -
Active control of coupled wave propagation in fluid-filled elastic cylindrical shells
(Acoustical Society of America, 1993-09-01)A control approach to reduce the total power propagating along fluid-filled elastic cylinders is analytically investigated. The motion of the cylinder is described by the Kennard shell equations fully coupled to the interior ... -
Active control of far-field sound radiated by a rectangular panel - a general analysis
(Acoustical Society of America, 1992-04-01)In this paper a general analysis is presented for the active control of the far-field harmonic sound radiated by a rectangular panel that is built into an infinite baffle. In this analysis, the panel vibration may be ... -
Active control of noise transmission through rectangular plates using multiple piezoelectric or point force actuators
(Acoustical Society of America, 1991-11-01)This paper analytically demonstrates the use of multiple piezoelectric actuators bonded to the surface and point force actuators applied directly to a plate to reduce sound transmission through the plate. A harmonic plane ... -
Active control of sound radiation due to subsonic wave scattering from discontinuities on fluid-loaded plates. I: Far-field pressure
(Acoustical Society of America, 1991-10-01)Active control of sound radiation due to subsonic wave scattering from discontinuities represented by a line constraint or by a uniform reinforcing rib positioned on a fluid-loaded infinite plate is analytically studied. ... -
Active control of sound radiation from a fluid-loaded rectangular uniform plate
(Acoustical Society of America, 1993-01-01)Active control of sound radiation from a simply supported rectangular fluid-loaded plate is analytically studied. The plate is assumed to be excited by a point force at subsonic frequencies. The solution to the plate motion ... -
Active control of sound radiation from a plate using a polyvinylidene fluoride volume displacement sensor
(Acoustical Society of America, 1998-03-01)This paper presents a new volume displacement sensor (made of shaped strips of PVDF film) and the experimental implementation of this sensor in an active control system. A design strategy for a PVDF sensor detecting the ... -
Active control of sound radiation from a simply supported beam: Influence of bending near-field waves
(Acoustical Society of America, 1993-05-01)Active control of sound radiation from a baffled simply supported finite beam is analytically studied. The beam is subjected to a harmonic input force and the resulting acoustic field is minimized by applying a control ... -
Active isolation of vibration with adaptive structures
(Acoustical Society of America, 1994-07-01)The problem of actively isolating the periodic vibrations of a rigid machine mounted on a supporting flexible structure is usually approached by applying the active inputs in parallel or series with the passive inputs. ... -
Active Vibration Isolation Using an Induced Strain Actuator with Application to Automotive Seat Suspensions
(Hindawi, 2001-01-01)Active vibration isolation of automotive seats requires actuators that achieve millimeter-range displacements and forces on the order of 300 N. Recent developments in piezoceramic actuator technology provide a means for ... -
Adaptive feedforward and feedback methods for active/passive sound radiation control using smart foam
(Acoustical Society of America, 1998-07-01)This work investigates and compares the potential of adaptive feed forward and feedback methods for a hybrid active/passive radiation control using smart foam. The radiating structure is a vibrating plate mounted in a rigid ... -
Adaptive near-field beamforming techniques for sound source imaging
(Acoustical Society of America, 2009-02-01)Phased array signal processing techniques such as beamforming have a long history in applications such as sonar for detection and localization of far-field sound sources. Two sometimes competing challenges arise in any ... -
Additive manufacturing of complex micro-architected graphene aerogels
(Royal Society of Chemistry, 2018-08-13)3D graphene foams exhibit immense degradation of mechanical properties. Micro-architecture can alleviate this problem, but no current technique meets the manufacturing requirements. Herein we developed a light-based 3D ... -
Advanced time domain wave-number sensing for structural acoustic systems. I. Theory and design
(Acoustical Society of America, 1994-06-01)This paper discusses new work concerned with developing structural sensors and associated signal processing techniques that provide time domain estimates of far-field pressure or structural wave-number information. The ...
