LEADER 04134nam a2200337Ii 4500 001 991003215149707536 008 070806s1997 caua sb 001 0 eng d 020 $a9780124192454 020 $a0124192459 035 $ab13649954-39ule_inst 040 $aBibl. Dip.le Aggr. Ingegneria Innovazione - Sez. Ingegneria Innovazione$beng 082 04$a620.2$222 100 1 $aKoopmann, Gary H.$0505232 245 10$aDesigning quiet structures$h[e-book] :$ba sound power minimization approach /$cGary H. Koopmann & John B. Fahnline 246 30$aQuiet structures 260 $aSan Diego :$bAcademic Press,$cc1997 300 $axiii, 244 p. :$bill. ;$c25 cm. +$e1 computer disk (3 1/2 in.) 504 $aIncludes bibliographical references and index 505 0 $aBasic Equations of Acoustics. Lumped Parameter Model for the Acoustic Radiation Problem. Numerical Solution of the Acoustic Radiation Problem. Experimental Measurement of the Resistance Matrix. Power Output Computations Using the Resistance Matrix. Minimizing Sound Power Using Material Tailoring. Active Control of Radiated Acoustic Power. Characterizing and Controlling the Sound in an Enclosure. Appendix: Input to and Output from the Computer Programs. Chapter References 520 $aThis book is the first of its kind. It provides the reader with a logical and highly quantitative means of including noise as a parameter in the early design stages of a machine or structure. The unique and unified methodology builds upon the familiar disciplines of acoustics, structural dynamics and optimization. It also exemplifies the art of simplification - the essence of all good engineering design. = Strategies for designing quiet structures require extensive analytical and experimental tools. For computing the sound power from complex structures the authors recommend a new 3-D, lumped parameter formulation. Not only this, they also include, on diskette, an original numerical program POWER. This fully developed, user-friendly program can be applied generally to noise-control-by-design problems. Detailed instructions for running the application are given in the appendix as well as several sample problems to help the user get started. = The authors also describe a new instrument: a specially developed resistance probe used to measure a structure=92s acoustic surface resistance. As an example, the procedure is outlined for measuring the valve cover of an internal combustion engine. Indeed, throughout the book the reader is presented with actual experiments, numerical and physical that they can replicate in their own laboratory. This is a must-have book for engineers working in industries that include noise control in the design of a product. Its practical and didactic approach also makes it ideally suited to graduate students. Key Features * First text covering the design of quiet structures * Written by two of the leading experts in the world in the area of noise control * Strong in its integration of structural dynamics, acoustics, and optimization theory * Accompanied by a computer program that allows the computation of sound power * Presents numerous applications of noise-control-by-design methods as well as methods for enclosed and open spaces * Each chapter is supported by homework problems and demonstration experiments 533 $aElectronic reproduction.$bAmsterdam :$cElsevier Science & Technology,$d2007.$nMode of access: World Wide Web.$nSystem requirements: Web browser.$nTitle from title screen (viewed on Aug. 2, 2007).$nAccess may be restricted to users at subscribing institutions 650 0$aAcoustical engineering 655 7$aElectronic books.$2local 700 1 $aFahnline, John B. 776 1 $cOriginal$z0124192459$z9780124192454$w(OCoLC)38437709 856 40$3Referex$uhttp://www.sciencedirect.com/science/book/9780124192454$zAn electronic book accessible through the World Wide Web; click for information 907 $a.b13649954$b03-03-22$c24-01-08 912 $a991003215149707536 996 $aDesigning quiet structures$91213453 997 $aUNISALENTO 998 $ale026$b24-01-08$cm$d@ $e-$feng$gcau$h0$i0