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Actran Community Forum Hi, What is the difference between TL and Attenuation Loss?

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Hi, What is the difference between TL and Attenuation Loss?

nagahara_isam over 3 years ago

Transmission Loss calculated by Actran is different form Attenuation Loss calculated by ESDU00024. Could you tell me how the difference occurs?

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0 Mina.Iizuka over 3 years ago

お送りいただいたESDU00024の挿入損失の式は、各モードを非相関と仮定しています。一方Actranでは通常のモーダルダクトの設定では挿入損失は各モードの相関を考慮した結果が出力されます。

Actranでモードを非相関として計算する場合は、modal ductのamplitudeでintensityを設定し、空のmultiple_loadcaseを設定する必要があります。
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