InMAR - Intelligent Materials for Active Noise Reduction

Hannu Nykänen, Samu Aalto, Pasi Kosonen, Tomi Lindroos, Esa Nousiainen, Jukka Tanttari, Seppo Uosukainen, Marko Antila, Jari Kataja, Velipekka Mellin, Ari Saarinen

    Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

    Abstract

    During the last decade fundamental research on smart structures using intelligent materials has raised industrial interest. One of the most challenging application field is noise and vibration control. The strongly coupled phenomena vibration and noise limit the design of highly advanced and efficient lightweight structures. To face the challenge European Union has granted funding for the Integrated Project Intelligent Materials for Active Noise Reduction - InMAR as the key European Union funded project in the area of Intelligent Materials within the FP 6. VTT's main focuses in InMAR project are in - developing novel concepts for vibroacoustic properties of light weight composite materials - developing new large surface structural and acoustic sensor-actuator pairs for sound transmission control developing new local feedback control methods, especially for multi-channel active sound transmission loss control - implementing active sound profiling for car interior sound quality control - applying the developed materials, actuators and control methods in passive design, and in active systems in car sound package design and elevator wall sound transmission loss increase. The first realization of novel composite panel concept at VTT is a GFRP panel with striped core made of two different materials. The panel shows up to 10 dB better sound insulation compared to the reference (homogenous stiff core) panel. Two types of polymer material based actuator-sensor elements have been developed together with Panphonics Oy, one for active structural control and the other for active acoustic control of sound transmission loss of panel type structures. Development of multi-channel digitally adjustable analog control system is carried out for the active systems e.g. utilising large surface polymer actuators. The developed FPAA prototype controller contains an FPAA unit board and a microcontroller. The prototype controller system has been tested in active car sound package mock-up with large surface polymer actuator-sensor pair with up to 9 dB improvement in the target frequency band with broadband acoustic excitation. Local feedback control system gives possibilities to tune and increase the sound insulation of the sound package at selected frequencies giving flexibility for the sound insulation design of car sound packages and other panel like structures.
    Original languageEnglish
    Title of host publicationIntelligent Products and Systems
    Subtitle of host publicationTechnology theme - Final report
    EditorsOlli Ventä
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages239-263
    ISBN (Electronic)978-951-38-7010-2
    ISBN (Print)978-951-38-7009-6
    Publication statusPublished - 2007
    MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material

    Publication series

    SeriesVTT Publications
    Number635
    ISSN1235-0621

    Fingerprint

    smart materials
    noise reduction
    acoustics
    sound transmission
    actuators
    transmission loss
    insulation
    European Union
    feedback control
    sensors
    controllers
    polymers
    prototypes
    acoustic excitation
    vibration
    smart structures
    composite materials
    active control
    quality control
    flexibility

    Cite this

    Nykänen, H., Aalto, S., Kosonen, P., Lindroos, T., Nousiainen, E., Tanttari, J., ... Saarinen, A. (2007). InMAR - Intelligent Materials for Active Noise Reduction. In O. Ventä (Ed.), Intelligent Products and Systems: Technology theme - Final report (pp. 239-263). Espoo: VTT Technical Research Centre of Finland. VTT Publications, No. 635
    Nykänen, Hannu ; Aalto, Samu ; Kosonen, Pasi ; Lindroos, Tomi ; Nousiainen, Esa ; Tanttari, Jukka ; Uosukainen, Seppo ; Antila, Marko ; Kataja, Jari ; Mellin, Velipekka ; Saarinen, Ari. / InMAR - Intelligent Materials for Active Noise Reduction. Intelligent Products and Systems: Technology theme - Final report. editor / Olli Ventä. Espoo : VTT Technical Research Centre of Finland, 2007. pp. 239-263 (VTT Publications; No. 635).
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    title = "InMAR - Intelligent Materials for Active Noise Reduction",
    abstract = "During the last decade fundamental research on smart structures using intelligent materials has raised industrial interest. One of the most challenging application field is noise and vibration control. The strongly coupled phenomena vibration and noise limit the design of highly advanced and efficient lightweight structures. To face the challenge European Union has granted funding for the Integrated Project Intelligent Materials for Active Noise Reduction - InMAR as the key European Union funded project in the area of Intelligent Materials within the FP 6. VTT's main focuses in InMAR project are in - developing novel concepts for vibroacoustic properties of light weight composite materials - developing new large surface structural and acoustic sensor-actuator pairs for sound transmission control developing new local feedback control methods, especially for multi-channel active sound transmission loss control - implementing active sound profiling for car interior sound quality control - applying the developed materials, actuators and control methods in passive design, and in active systems in car sound package design and elevator wall sound transmission loss increase. The first realization of novel composite panel concept at VTT is a GFRP panel with striped core made of two different materials. The panel shows up to 10 dB better sound insulation compared to the reference (homogenous stiff core) panel. Two types of polymer material based actuator-sensor elements have been developed together with Panphonics Oy, one for active structural control and the other for active acoustic control of sound transmission loss of panel type structures. Development of multi-channel digitally adjustable analog control system is carried out for the active systems e.g. utilising large surface polymer actuators. The developed FPAA prototype controller contains an FPAA unit board and a microcontroller. The prototype controller system has been tested in active car sound package mock-up with large surface polymer actuator-sensor pair with up to 9 dB improvement in the target frequency band with broadband acoustic excitation. Local feedback control system gives possibilities to tune and increase the sound insulation of the sound package at selected frequencies giving flexibility for the sound insulation design of car sound packages and other panel like structures.",
    author = "Hannu Nyk{\"a}nen and Samu Aalto and Pasi Kosonen and Tomi Lindroos and Esa Nousiainen and Jukka Tanttari and Seppo Uosukainen and Marko Antila and Jari Kataja and Velipekka Mellin and Ari Saarinen",
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    Nykänen, H, Aalto, S, Kosonen, P, Lindroos, T, Nousiainen, E, Tanttari, J, Uosukainen, S, Antila, M, Kataja, J, Mellin, V & Saarinen, A 2007, InMAR - Intelligent Materials for Active Noise Reduction. in O Ventä (ed.), Intelligent Products and Systems: Technology theme - Final report. VTT Technical Research Centre of Finland, Espoo, VTT Publications, no. 635, pp. 239-263.

    InMAR - Intelligent Materials for Active Noise Reduction. / Nykänen, Hannu; Aalto, Samu; Kosonen, Pasi; Lindroos, Tomi; Nousiainen, Esa; Tanttari, Jukka; Uosukainen, Seppo; Antila, Marko; Kataja, Jari; Mellin, Velipekka; Saarinen, Ari.

    Intelligent Products and Systems: Technology theme - Final report. ed. / Olli Ventä. Espoo : VTT Technical Research Centre of Finland, 2007. p. 239-263 (VTT Publications; No. 635).

    Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

    TY - CHAP

    T1 - InMAR - Intelligent Materials for Active Noise Reduction

    AU - Nykänen, Hannu

    AU - Aalto, Samu

    AU - Kosonen, Pasi

    AU - Lindroos, Tomi

    AU - Nousiainen, Esa

    AU - Tanttari, Jukka

    AU - Uosukainen, Seppo

    AU - Antila, Marko

    AU - Kataja, Jari

    AU - Mellin, Velipekka

    AU - Saarinen, Ari

    PY - 2007

    Y1 - 2007

    N2 - During the last decade fundamental research on smart structures using intelligent materials has raised industrial interest. One of the most challenging application field is noise and vibration control. The strongly coupled phenomena vibration and noise limit the design of highly advanced and efficient lightweight structures. To face the challenge European Union has granted funding for the Integrated Project Intelligent Materials for Active Noise Reduction - InMAR as the key European Union funded project in the area of Intelligent Materials within the FP 6. VTT's main focuses in InMAR project are in - developing novel concepts for vibroacoustic properties of light weight composite materials - developing new large surface structural and acoustic sensor-actuator pairs for sound transmission control developing new local feedback control methods, especially for multi-channel active sound transmission loss control - implementing active sound profiling for car interior sound quality control - applying the developed materials, actuators and control methods in passive design, and in active systems in car sound package design and elevator wall sound transmission loss increase. The first realization of novel composite panel concept at VTT is a GFRP panel with striped core made of two different materials. The panel shows up to 10 dB better sound insulation compared to the reference (homogenous stiff core) panel. Two types of polymer material based actuator-sensor elements have been developed together with Panphonics Oy, one for active structural control and the other for active acoustic control of sound transmission loss of panel type structures. Development of multi-channel digitally adjustable analog control system is carried out for the active systems e.g. utilising large surface polymer actuators. The developed FPAA prototype controller contains an FPAA unit board and a microcontroller. The prototype controller system has been tested in active car sound package mock-up with large surface polymer actuator-sensor pair with up to 9 dB improvement in the target frequency band with broadband acoustic excitation. Local feedback control system gives possibilities to tune and increase the sound insulation of the sound package at selected frequencies giving flexibility for the sound insulation design of car sound packages and other panel like structures.

    AB - During the last decade fundamental research on smart structures using intelligent materials has raised industrial interest. One of the most challenging application field is noise and vibration control. The strongly coupled phenomena vibration and noise limit the design of highly advanced and efficient lightweight structures. To face the challenge European Union has granted funding for the Integrated Project Intelligent Materials for Active Noise Reduction - InMAR as the key European Union funded project in the area of Intelligent Materials within the FP 6. VTT's main focuses in InMAR project are in - developing novel concepts for vibroacoustic properties of light weight composite materials - developing new large surface structural and acoustic sensor-actuator pairs for sound transmission control developing new local feedback control methods, especially for multi-channel active sound transmission loss control - implementing active sound profiling for car interior sound quality control - applying the developed materials, actuators and control methods in passive design, and in active systems in car sound package design and elevator wall sound transmission loss increase. The first realization of novel composite panel concept at VTT is a GFRP panel with striped core made of two different materials. The panel shows up to 10 dB better sound insulation compared to the reference (homogenous stiff core) panel. Two types of polymer material based actuator-sensor elements have been developed together with Panphonics Oy, one for active structural control and the other for active acoustic control of sound transmission loss of panel type structures. Development of multi-channel digitally adjustable analog control system is carried out for the active systems e.g. utilising large surface polymer actuators. The developed FPAA prototype controller contains an FPAA unit board and a microcontroller. The prototype controller system has been tested in active car sound package mock-up with large surface polymer actuator-sensor pair with up to 9 dB improvement in the target frequency band with broadband acoustic excitation. Local feedback control system gives possibilities to tune and increase the sound insulation of the sound package at selected frequencies giving flexibility for the sound insulation design of car sound packages and other panel like structures.

    M3 - Chapter or book article

    SN - 978-951-38-7009-6

    T3 - VTT Publications

    SP - 239

    EP - 263

    BT - Intelligent Products and Systems

    A2 - Ventä, Olli

    PB - VTT Technical Research Centre of Finland

    CY - Espoo

    ER -

    Nykänen H, Aalto S, Kosonen P, Lindroos T, Nousiainen E, Tanttari J et al. InMAR - Intelligent Materials for Active Noise Reduction. In Ventä O, editor, Intelligent Products and Systems: Technology theme - Final report. Espoo: VTT Technical Research Centre of Finland. 2007. p. 239-263. (VTT Publications; No. 635).