[go: up one dir, main page]

Gentry-Grace, 1998 - Google Patents

A study of smart foam for noise control applications

Gentry-Grace, 1998

View PDF
Document ID
14196592377793879667
Author
Gentry-Grace C
Publication year

External Links

Snippet

Smart foam is a composite noise control treatment that consists of a distributed piezoelectric actuator, known as polyvinylidene fluoride (PVDF), embedded within a layer of partially- reticulated polyurethane foam. The principal function of smart foam is to yield broadband …
Continue reading at vtechworks.lib.vt.edu (PDF) (other versions)

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or damping of, acoustic waves, e.g. sound
    • G10K11/175—Methods or devices for protecting against, or damping of, acoustic waves, e.g. sound using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or damping of, acoustic waves, e.g. sound using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or damping of, acoustic waves, e.g. sound
    • G10K11/162—Selection of materials
    • G10K11/172—Selection of materials using resonance effects
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3212—Actuator details, e.g. composition or microstructure
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/128—Vehicles
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/105—Appliances, e.g. washing machines or dishwashers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting, or directing sound
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for

Similar Documents

Publication Publication Date Title
Gentry et al. Smart foam for applications in passive–active noise radiation control
US5590849A (en) Active noise control using an array of plate radiators and acoustic resonators
JP3027824B2 (en) Active foam plastic for noise and vibration control
Sors et al. Volume velocity estimation with accelerometer arrays for active structural acoustic control
Guigou et al. Adaptive feedforward and feedback methods for active/passive sound radiation control using smart foam
Johnson et al. Broadband control of plate radiation using a piezoelectric, double-amplifier active-skin and structural acoustic sensing
Gentry-Grace A study of smart foam for noise control applications
Fuller et al. Foam-PVDF smart skin for active control of sound
Angevine et al. Active systems for attenuation of noise
Berry Advanced sensing strategies for the active control of vibration and structural radiation
Jayachandran et al. Piezoelectrically driven speakers for active aircraft interior noise suppression
Tewes Active trim panel attachments for control of sound transmission through aircraft structures
Li et al. The design of synthesized structural acoustic sensors for active control of interior noise with experimental validation
Guigou et al. Foam-PVDF smart skin for aircraft interior sound control
Mansor et al. Eigenfrequency shift of piezoelectric backplate in vibro-acoustic energy harvesting
Kozupa et al. Comparison of passive and active methods for minimization of sound radiation by vibrating clamped plate
Pan et al. Use of a perforated panel for the active control of sound radiated from vibrating structures, I: Low-frequency analysis
CN115136231A (en) Method and apparatus for controlling the propagation of sound waves on a wall
Varadan et al. Modeling the sensor/actuator response of a finite disk transducer flush mounted on a plate subject to fluid loading
Maestrello Active control of nonlinear vibration of a panel structure
Hirsch et al. Spatial characteristics of acoustic boundary control for interior noise suppression
Snyder et al. The effect of modal coupling characteristics on one mechanism of active noise control
Akl Smart foam for active vibration and noise control
Gentry et al. Smart foam for applications in passive-active radiation control
Zielinski et al. Analysis of wave propagation and absorption at normal and oblique incidence in poroelastic layers with active periodic inclusions