內容簡介
The second volume of Vibro-Acoustics includes eight chapters. As in the first volume, each chapter ends with a number of problems. The solutions are given in a separate volume, which also contains a summary of some of the most important governing equations from the first two volumes.
A number of measurement results are presented in Volume II. Most of these measurements could not have been performed without the expert help of Fritiof Torstensson and Arne Jagenas at Chalmers, Knut Ulvund at DNV and Kent Lindgren and Danilo Prilovic at KTH. I also gratefully acknowledge the pioneering work by Prof T.Kihlman, who introduced the field of vibro-acoustics in Scandinavia.
I would like to express my gratitude to Hector Valenzuela, Edoardo Piana and in particular to Benedetta Grassi for their untiring and very efficient work on preparing all the figures.
Any comments or questions on the text are most welcome. Contact us by email, address andersc.nilsson@gmail.com and liubl@mail.ioa.ac.cn.
內頁插圖
目錄
PREFACE
Chapter 9 HAMILTON-S PRINCIPLE AND SOME OTHER VARIATIONAL METHODS
9.1 Hamilton's principle
9.2 Flexural vibrations of slender beams
9.3 Equation of motion for honeycomb beams in flexure
9.4 Plates with constrained viscoelastic layer
9.5 Timoshenko beams
9.6 Mindlin plates
9.7 Cylindrical shells
9.8 Lagrange's equation
9.9 Garlekin's method
9.10 An example using Garlekin's method
Problems
Chapter 10 STRUCTURAL COUPLING BETWEEN SIMPLE SYSTEMS
10.1 Introduction
10.2 Coupled mass-spring systems
10.3 Coupled systems with losses
10.4 Example
10.5 Rubber mounts, some material parameters
10.6 Wave propagation in rubber mounts, approximate solutions
10.7 Equivalent stiffness of simple mounts-approximate methods
10.8 Static defiection of cylindrical rubber mounts
10.9 Wave propagation in circular rods, exact solutions
10.10 Measurements of effective stiffness of mounts
10.11 Structural coupling via resilient mounts
10.12 Simple transmission model
10.13 Multi-point coupling
10.14 Multi-point coupling, low and high frequency limits
10.15 Source strength
Problems
Chapter 11 WAVES IN FLUIDS
11.1 Wave equation
11.2 Energy and intensity
11.3 Losses
11.4 Basic solutions to wave equation
11.5 Green's function
11.6 Dipole and other multipole sources
11.7 Additional sources and solutions
11.8 Moving monopole sources
11.9 Reflection from a plane surface
11.10 Reflection from a water surface
11.11 Influence of temperature and velocity gradients
11.12 Acoustic fields in closed rooms
11.13 Geometrical acoustics
11.14 Near and reverberant acoustic fields in a room
11.15 Measurement of the sound transmission loss of a wall
Problems
Chapter 12 FLUID STRUCTURE INTERACTION AND RADIATION OF SOUND
12.1 Radiation and fiuid loading of infinite plates
12.2 Radiation-general formulation
12.3 Green's function-rigid plane boundary
12.4 Spatial Fourier transforms-several variables
12.5 Radiation from infinite point excited plates
12.6 Mobilities of fiuid loaded infinite plates
12.7 Discussion of results-infinite fluid loaded plates
12.8 Radiation from finite baffled plates
12.9 Radiation ratios-finite baffled plates
12.10 Radiation from point excited plates
12.11 Sound radiation ratios-cylinders
12.12 Losses due to radiation
12.13 Radiation from fluid loaded finite plates
……
Chapter 13 SOUND TRANSMISSION LOSS OF PANELS
Chapter 14 WAVEGUIDES
Chapter 15 RANDOM EXCITATION OF STRUCTURES
Chapter 16 TRANSMISSION OF SOUND IN BUILT-UPSTRUCTURES
REFERENCES
Appendix A SOUND TRANSMISSION LOSS OF SINGLE LEAF PANELS
Appendix B VELOCITY LEVEL OF SINGLE LEAF PANELS EXCITED BY AN ACOUSTIC FIELD
Appendix C INPUT DATA FOR NOISE PREDICTION ON SHIPS
INDEX
前言/序言
振聲學(第2捲)(英文版) [Vibro-Acoustics(Volume 2)] 下載 mobi epub pdf txt 電子書