IT201900004761A1 - Procedimento di fabbricazione di un pannello fonoassorbente con struttura a sandwich per la riduzione dell’impatto sonoro di un motore aeronautico - Google Patents

Procedimento di fabbricazione di un pannello fonoassorbente con struttura a sandwich per la riduzione dell’impatto sonoro di un motore aeronautico

Info

Publication number
IT201900004761A1
IT201900004761A1 IT102019000004761A IT201900004761A IT201900004761A1 IT 201900004761 A1 IT201900004761 A1 IT 201900004761A1 IT 102019000004761 A IT102019000004761 A IT 102019000004761A IT 201900004761 A IT201900004761 A IT 201900004761A IT 201900004761 A1 IT201900004761 A1 IT 201900004761A1
Authority
IT
Italy
Prior art keywords
sound
reduce
manufacturing process
sandwich structure
aircraft engine
Prior art date
Application number
IT102019000004761A
Other languages
English (en)
Inventor
Marco Vercellesi
Original Assignee
Leonardo Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leonardo Spa filed Critical Leonardo Spa
Priority to IT102019000004761A priority Critical patent/IT201900004761A1/it
Priority to US17/598,534 priority patent/US20220177152A1/en
Priority to SG11202110620QA priority patent/SG11202110620QA/en
Priority to PCT/IB2020/052900 priority patent/WO2020201951A1/en
Priority to CN202080025281.XA priority patent/CN113677513A/zh
Priority to EP20719722.9A priority patent/EP3829861B1/en
Publication of IT201900004761A1 publication Critical patent/IT201900004761A1/it

Links

Classifications

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    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
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    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • B29D99/0021—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings provided with plain or filled structures, e.g. cores, placed between two or more plates or sheets, e.g. in a matrix
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Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
IT102019000004761A 2019-03-29 2019-03-29 Procedimento di fabbricazione di un pannello fonoassorbente con struttura a sandwich per la riduzione dell’impatto sonoro di un motore aeronautico IT201900004761A1 (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT102019000004761A IT201900004761A1 (it) 2019-03-29 2019-03-29 Procedimento di fabbricazione di un pannello fonoassorbente con struttura a sandwich per la riduzione dell’impatto sonoro di un motore aeronautico
US17/598,534 US20220177152A1 (en) 2019-03-29 2020-03-27 Method for manufacturing a sound-absorbing sandwich panel for reducing noise of an aircraft engine
SG11202110620QA SG11202110620QA (en) 2019-03-29 2020-03-27 Method for manufacturing a sound- absorbing sandwich panel for reducing noise of an aircraft engine
PCT/IB2020/052900 WO2020201951A1 (en) 2019-03-29 2020-03-27 Method for manufacturing a sound- absorbing sandwich panel for reducing noise of an aircraft engine
CN202080025281.XA CN113677513A (zh) 2019-03-29 2020-03-27 用于降低飞行器发动机噪声的吸声夹层板的制造方法
EP20719722.9A EP3829861B1 (en) 2019-03-29 2020-03-27 Method for manufacturing a sound- absorbing sandwich panel for reducing noise of an aircraft engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000004761A IT201900004761A1 (it) 2019-03-29 2019-03-29 Procedimento di fabbricazione di un pannello fonoassorbente con struttura a sandwich per la riduzione dell’impatto sonoro di un motore aeronautico

Publications (1)

Publication Number Publication Date
IT201900004761A1 true IT201900004761A1 (it) 2020-09-29

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IT102019000004761A IT201900004761A1 (it) 2019-03-29 2019-03-29 Procedimento di fabbricazione di un pannello fonoassorbente con struttura a sandwich per la riduzione dell’impatto sonoro di un motore aeronautico

Country Status (6)

Country Link
US (1) US20220177152A1 (it)
EP (1) EP3829861B1 (it)
CN (1) CN113677513A (it)
IT (1) IT201900004761A1 (it)
SG (1) SG11202110620QA (it)
WO (1) WO2020201951A1 (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100017474A1 (it) 2021-07-02 2023-01-02 Leonardo Spa Procedimento di fabbricazione di un nucleo per pannello fonoassorbente con struttura a sandwich per la riduzione del rumore in un aeromobile

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759513A (en) * 1986-09-26 1988-07-26 Quiet Nacelle Corporation Noise reduction nacelle
US4817756A (en) 1985-08-26 1989-04-04 Aeronautic Development Corp. Ltd. Quiet nacelle system and hush kit
US20050060982A1 (en) 2003-09-22 2005-03-24 General Electric Company Method and system for reduction of jet engine noise
US20050082112A1 (en) 2003-10-17 2005-04-21 Harrison Geoffrey E. Annular acoustic panel
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CN113677513A (zh) 2021-11-19

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