横截,横断
发表于 2025-3-30 08:24:55
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土产
发表于 2025-3-30 14:29:27
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惊奇
发表于 2025-3-30 19:39:48
Ning Xiang,Jens BlauertProvides the material for an introductory course in engineering acoustics.Features a wealth of end-of-chapter exercises and solutions.Explains the latest state of the art where technology is evolving
lobster
发表于 2025-3-30 22:43:09
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Cacophonous
发表于 2025-3-31 03:35:04
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Duodenitis
发表于 2025-3-31 05:04:54
,,-Wert nach der dynamischen Methode mechanic parallel oscillator and the acoustic . oscillator are taken as examples to discuss free and forced oscillations and their mathematical treatment, including energy, power, and dissipations losses during oscillations.
小鹿
发表于 2025-3-31 12:31:06
,Grundzüge turbulenter Strömungen,, including the . form. The general solutions of these equations after . are presented. Field impedances and power transport in such waves are discussed. A special form of the wave equation, the so-called transmission-line equation is derived and applied to the acoustic measurement tube (.’s tube).
痛打
发表于 2025-3-31 15:12:27
,Grundzüge turbulenter Strömungen,es, .’s horn equation, is derived and applied to conical and exponential horns. The acoustic properties of such horns are explained, particularly their frequency-dependent radiation characteristics. Further in this chapter, stepped ducts are analyzed, and their application potency for acoustic filters is discussed.
COLON
发表于 2025-3-31 19:54:20
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