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構造全般

構造全般

  1. マイチャンネル
  2. AIS Japan - 構造全般
  3. 音圧と音圧レベルの関係

音圧と音圧レベルの関係

Tagged: 2020 R1, General, mechanical
    • January 31, 2023 at 9:57 am
      FAQFAQ
      Participant

      質問：音圧と音圧レベルの関係を教えてください。 回答： 音圧レベル算出時の音圧には実効値（RMS値）が使用されます。 音圧の実効値Prms[Pa]=P[Pa]/√2であり、音圧レベル (SPL)[dB]=20log(Prms[Pa]/Pref[Pa])となります。 Prefは最小可聴音圧であり、20 x 10^-6[Pa] = 20[uPa]です。また、最小可聴音圧は「最小音圧の実効値（RMS値）」となります。 詳しくは下記のAnsys Helpをご確認ください。 https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v201/ja/ans_thry/thyacous_aoq.html

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