دانلود کتاب The Acoustics of Wood (1995)

فهرست مطالب :

Introduction

General Remarks on Wood Material

Outline of the Book

References

PART I. ENVIRONMENTAL ACOUSTICS

Acoustics of Forests and Acoustic Quality Control of Some Forest Products

Acoustics of Forests and Forest Products

Ultrasound for the Germinability Detection of Acorns

References

Wood and Wood-Based Materials in Architectural Acoustics

Influence of Anatomic Structure of Wood on Sound Absorption Characteristics

Wood Materials as Acoustic Insulators

Wood and the Acoustics of Concert Halls

References

PART II. MATERIAL CHARACTERIZATION

Theory and Experimental Methods for the Acoustic Characterization of Wood

Elastic Symmetry of Propagation Media

Wave Propagation in Anisotropic Media

Velocity of Ultrasonic Waves in Wood

Attenuation of Ultrasonic Waves

Internal Friction in Wood in the Audible Frequency Range

References

Elastic Constants of Wood Material

Global Characterization

Local Characterization

References

Structural Anisotropy and Ultrasonic Parameters of Wood

Filtering Action Induced by the Anatomic Structure of Wood

Estimation of Anisotropy by Velocities of Longitudinal and Transverse Bulk Waves

Estimation of Anisotropy by Invariants

References

PART III. QUALITY ASSESSMENT

Wood Species for Musical Instruments

Acoustic Properties of Wood Species

Factors Affecting Acoustic Properties of Wood for Musical Instruments

Chemical Treatments for Improving the Acoustic Properties of Common Solid Wood Used for Mass-Produced Instruments

Composites as Substitutes for Resonance Wood

Appendix

References

Ultrasound as a Complementary Nondestructive Tool for Wood Quality Assessment

Ultrasound and Wood Quality

Ultrasonic Methods for Trees, Timber, and Wood Composites

Other Nondestructive Techniques for the Detection of Defects in Wood

References

Environmental Modifiers of the Structural Parameters of Wood Detected with Ultrasonic Waves

Dependence of Ultrasonic Velocities and Related Mechanical Parameters of Wood on Moisture Content and Temperature

Ultrasonic Parameters and Biological Deterioration

References

Acoustic Emission

Principles and Instrumentation

Acoustic Emission for the Structural Evaluation of Trees, Solid Wood, Particleboard, and Other Wood-Based Composites

Acoustic Emission for Monitoring Technological Processes

References

High-Energy Ultrasonic Treatment for Wood Processing

Modifications Induced in Anatomic Structure by High-Energy Ultrasonic Waves

High-Energy Ultrasonic Treatment, A Tool for Wood Processing

Improving Wood Preservation Using Ultrasound

References

Index