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Noise and Vibration Control in Automotive Bodies.

By: Material type: TextTextSeries: Automotive SeriesPublisher: Newark : John Wiley & Sons, Incorporated, 2018Copyright date: ©2019Edition: 1st edDescription: 1 online resource (531 pages)Content type:
  • text
Media type:
  • computer
Carrier type:
  • online resource
ISBN:
  • 9781119515517
Subject(s): Genre/Form: Additional physical formats: Print version:: Noise and Vibration Control in Automotive BodiesLOC classification:
  • TL246 .P364 2019
Online resources:
Contents:
Intro -- Title Page -- Copyright Page -- Contents -- Pref˘ace -- Chapter 1 Introduction -- 1.1 Automotive Body Structure and Noise and Vibration Problems -- 1.1.1 Automotive Body Structure -- 1.1.2 Noise and Vibration Problems Caused by Body Frame Structure -- 1.1.3 Noise and Vibration Problems Caused by Body Panel Structure -- 1.1.4 Interior Trimmed Structure and Sound Treatment -- 1.1.5 Noise and Vibration Problems Caused by Body Accessory Structures -- 1.2 Transfer of Structural‐Borne Noise and Airborne Noise to Interior -- 1.2.1 Description of Vehicle Noise and Vibration Sources -- 1.2.2 Structural‐Borne Noise and Airborne Noise -- 1.2.3 Transfer of Noise and Vibration Sources to Interior -- 1.3 Key Techniques for Body Noise and Vibration Control -- 1.3.1 Vibration and Control of Overall Body Structure -- 1.3.2 Vibration and Sound Radiation of Body Local Structures -- 1.3.3 Sound Package for Vehicle Body -- 1.3.4 Body Noise and Vibration Sensitivity -- 1.3.5 Wind Noise and Control -- 1.3.6 Door Closing Sound Quality and Control -- 1.3.7 Squeak and Rattle of Vehicle Body -- 1.4 Noise and Vibration Control During Vehicle Development -- 1.4.1 Modal Frequency Distribution for Vehicle Body -- 1.4.2 Body NVH Target System -- 1.4.3 Execution of Body NVH Targets -- 1.5 Structure of This Book -- Chapter 2 Vibration Control of Overall Body Structure -- 2.1 Introduction -- 2.1.1 Overall Body Stiffness -- 2.1.2 Overall Body Modes -- 2.1.3 Scopes of Overall Body Vibration Research -- 2.2 Overall Body Stiffness -- 2.2.1 Body Bending Stiffness -- 2.2.2 Body Torsional Stiffness -- 2.3 Control of Overall Body Stiffness -- 2.3.1 Overall Layout of a Body Structure -- 2.3.2 Body Frame Cross‐Section and Stiffness Analysis -- 2.3.3 Joint Stiffness -- 2.3.4 Influence of Adhesive Bonding Stiffness on Overall Body Stiffness.
2.3.5 Contribution Analysis of Beams and Joints on Overall Body Stiffness -- 2.4 Identification of Overall Body Modes -- 2.4.1 Foundation of Modal Analysis -- 2.4.2 Modal Shape and Frequency of Vehicle Body -- 2.4.3 Modal Testing for Vehicle Body -- 2.4.4 Calculation of Vehicle Body Mode -- 2.5 Control of Overall Body Modes -- 2.5.1 Separation and Decoupling of Body Modes -- 2.5.2 Planning Table/Chart of Body Modes -- 2.5.3 Control of Overall Body Modes -- Bibliography -- Chapter 3 Noise and Vibration Control for Local Body Structures -- 3.1 Noise and Vibration Problems Caused by Vehicle Local Structures -- 3.1.1 Classification and Modes of Local Body Structures -- 3.1.2 Noise and Vibration Problems Generated by Local Modes -- 3.1.3 Control Strategy for Local Modes -- 3.2 Body Plate Vibration and Sound Radiation -- 3.2.1 Vibration of Plate Structure -- 3.2.2 Sound Radiation of Plate Structure -- 3.3 Body Acoustic Cavity Mode -- 3.3.1 Definition and Shapes of Acoustic Cavity Mode -- 3.3.2 Theoretical Analysis and Measurement of Acoustic Cavity Mode -- 3.3.3 Coupling of Acoustic Cavity Mode and Structural Mode -- 3.3.4 Control of Acoustic Cavity Mode -- 3.4 Panel Contribution Analysis -- 3.4.1 Concept of Panel Contribution -- 3.4.2 Contribution Analysis of Panel Vibration and Sound Radiation -- 3.4.3 Testing Methods for Panel Vibration and Sound Radiation -- 3.5 Damping Control for Structural Vibration and Sound Radiation -- 3.5.1 Damping Phenomenon and Description -- 3.5.2 Damping Models -- 3.5.3 Loss Factor -- 3.5.4 Characteristics of Viscoelastic Damping Materials -- 3.5.5 Classification of Body Damping Materials and Damping Structures -- 3.5.6 Measurement of Damping Loss Factor -- 3.5.7 Application of Damping Materials and Structures on Vehicle Body -- 3.6 Stiffness Control for Body Panel Vibration and Sound Radiation.
3.6.1 Mechanism of Stiffness Control -- 3.6.2 Tuning of Plate Stiffness -- 3.6.3 Influence of Plate Stiffness Tuning on Sound Radiation -- 3.6.4 Case Study of Body Stiffness Tuning -- 3.7 Mass Control for Body Panel Vibration and Sound Radiation -- 3.7.1 Mechanism of Mass Control -- 3.7.2 Application of Mass Control -- 3.8 Damper Control for Body Vibration and Sound Radiation -- 3.8.1 Mechanism of Dynamic Damper -- 3.8.2 Application of Dynamic Damper to Attenuate Interior Booming -- 3.9 Noise and Vibration for Body Accessory Components -- 3.9.1 Bracket Mode and Control -- 3.9.2 Control of Steering System Vibration -- 3.9.3 Control of Seat Vibration -- Bibliography -- Chapter 4 Sound Package -- 4.1 Introduction -- 4.1.1 Transfer of Airborne‐Noise to Passenger Compartment -- 4.1.2 Scopes of Sound Package Research -- 4.2 Body Sealing -- 4.2.1 Importance of Sealing -- 4.2.2 Static Sealing and Dynamic Sealing -- 4.2.3 Measurement of Static Sealing -- 4.2.4 Control of Static Sealing -- 4.3 Sound Absorptive Materials -- 4.3.1 Sound Absorption Mechanism and Sound Absorption Coefficient -- 4.3.2 Porous Sound Absorptive Material -- 4.3.3 Resonant Sound Absorption Structure -- 4.3.4 Measurement of Sound Absorption Coefficient -- 4.4 Sound Insulation Materials and Structures -- 4.4.1 Mechanism of Sound Insulation and Sound Transmission Loss -- 4.4.2 Sound Insulation of Single Plate -- 4.4.3 Sound Insulation of Double Plate -- 4.4.4 Measurement of Sound Insulation Materials -- 4.5 Application of Sound Package -- 4.5.1 Application of Sound Absorptive Materials and Structures -- 4.5.2 Application of Combination of Sound Insulation Structures and Sound Absorptive Materials -- 4.5.3 Application of Sound Baffle Material -- 4.6 Statistical Energy Analysis and Its Application -- 4.6.1 Concepts of Statistical Energy Analysis -- 4.6.2 Theory of Statistical Energy Analysis.
4.6.3 Assumptions and Applications of Statistical Energy Analysis -- 4.6.4 Loss Factor -- 4.6.5 Input Power -- 4.6.6 Application of Statistical Energy Analysis on Vehicle Body -- Bibliography -- Chapter 5 Vehicle Body Sensitivity Analysis and Control -- 5.1 Introduction -- 5.1.1 System and Transfer Function -- 5.1.2 Vibration and Sound Excitation Points on Vehicle Body -- 5.1.3 Response Points -- 5.1.4 Body Sensitivity -- 5.2 Source-Transfer Path-Response Model for Vehicle Body -- 5.2.1 Source-Transfer Path-Response Model -- 5.2.2 Source-Transfer Function-Vibration Model for Vehicle Body -- 5.2.3 Source−Transfer Function−Noise Model for Vehicle Body -- 5.3 Characteristics and Analysis of Noise and Vibration Sources -- 5.3.1 Excitation Characteristics of Engine and Related Systems -- 5.3.2 Excitation Characteristics of Drivetrain System -- 5.3.3 Excitation Characteristics of Tires -- 5.3.4 Excitation Characteristics of Rotary Machines -- 5.3.5 Excitation Characteristics of Random or Impulse Inputs -- 5.4 Dynamic Stiffness and Input Point Inertance -- 5.4.1 Mechanical Impedance and Mobility -- 5.4.2 Driving Point Dynamic Stiffness -- 5.4.3 IPI and Driving Point Dynamic Stiffness -- 5.4.4 Control of Driving Point Dynamic Stiffness -- 5.5 Vibration−Vibration Sensitivity and Sound−Vibration Sensitivity -- 5.5.1 Transfer Processing of Vibration Sources to Interior Vibration and Vibration−Vibration Sensitivity -- 5.5.2 Transfer Processing of Vibration Sources to Interior Noise and Sound−Vibration Sensitivity -- 5.5.3 Sensitivity Control -- 5.5.4 Sensitivity Targets -- 5.6 Sound−Sound Sensitivity and Control -- 5.6.1 Sound Transmission from Outside Body to Interior -- 5.6.2 Expression of Sound−Sound Sensitivity -- 5.6.3 Targets and Control of Sound−Sound Sensitivity -- Bibliography -- Chapter 6 Wind Noise -- 6.1 Introduction.
6.1.1 Problems Induced by Wind Noise -- 6.1.2 Sound Sources and Classification of Wind Noise -- 6.2 Mechanism of Wind Noise -- 6.2.1 Pulsating Noise -- 6.2.2 Aspiration Noise -- 6.2.3 Buffeting Noise -- 6.2.4 Cavity Noise -- 6.3 Control Strategy for Wind Noise -- 6.3.1 Transfer Paths of Wind Noise -- 6.3.2 Control Strategy of Wind Noise -- 6.4 Body Overall Styling and Wind Noise Control -- 6.4.1 Ideal Body Overall Styling -- 6.4.2 Design of Transition Region between Front Grill and Engine Hook -- 6.4.3 Design in Area between Engine Hood and Front Windshield -- 6.4.4 Design of A‐Pillar Area -- 6.4.5 Design of Transition Area of Roof, Rear Windshield, and Trunk Lid -- 6.4.6 Underbody Design -- 6.4.7 Design in an Area of Wheelhouse and Body Side Panel -- 6.5 Body Local Design and Wind Noise Control -- 6.5.1 Principles for Body Local Structure Design -- 6.5.2 Design of Side Mirror and Its Connection with Body -- 6.5.3 Sunroof Design and Wind Noise Control -- 6.5.4 Antenna Design and Wind Noise Control -- 6.5.5 Design of Roof Luggage Rack -- 6.5.6 Control of Other Appendages and Outside Cavity -- 6.6 Dynamic Sealing and Control -- 6.6.1 Dynamic Sealing and Its Importance -- 6.6.2 Expression for Dynamic Sealing -- 6.6.3 Dynamic Sealing between Door and Body -- 6.6.4 Control of Dynamic Sealing -- 6.7 Measurement and Evaluation of Wind Noise -- 6.7.1 Wind Noise Testing in Wind Tunnel -- 6.7.2 Wind Noise Testing on Road -- 6.7.3 Evaluation of Wind Noise -- 6.8 Analysis of Wind Noise -- 6.8.1 Relationship Between Aerodynamic Acoustics and Classical Acoustics -- 6.8.2 Lighthill Acoustic Analogy Theory -- 6.8.3 Lighthill‐Curl Acoustic Analogy Theory -- 6.8.4 Solution of Aerodynamic Equations -- 6.8.5 Simulation of Wind Noise -- Bibliography -- Chapter 7 Door Closing Sound Quality -- 7.1 Vehicle Sound Quality -- 7.1.1 Concept of Sound Quality.
7.1.2 Automotive Sound Quality.
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Intro -- Title Page -- Copyright Page -- Contents -- Pref˘ace -- Chapter 1 Introduction -- 1.1 Automotive Body Structure and Noise and Vibration Problems -- 1.1.1 Automotive Body Structure -- 1.1.2 Noise and Vibration Problems Caused by Body Frame Structure -- 1.1.3 Noise and Vibration Problems Caused by Body Panel Structure -- 1.1.4 Interior Trimmed Structure and Sound Treatment -- 1.1.5 Noise and Vibration Problems Caused by Body Accessory Structures -- 1.2 Transfer of Structural‐Borne Noise and Airborne Noise to Interior -- 1.2.1 Description of Vehicle Noise and Vibration Sources -- 1.2.2 Structural‐Borne Noise and Airborne Noise -- 1.2.3 Transfer of Noise and Vibration Sources to Interior -- 1.3 Key Techniques for Body Noise and Vibration Control -- 1.3.1 Vibration and Control of Overall Body Structure -- 1.3.2 Vibration and Sound Radiation of Body Local Structures -- 1.3.3 Sound Package for Vehicle Body -- 1.3.4 Body Noise and Vibration Sensitivity -- 1.3.5 Wind Noise and Control -- 1.3.6 Door Closing Sound Quality and Control -- 1.3.7 Squeak and Rattle of Vehicle Body -- 1.4 Noise and Vibration Control During Vehicle Development -- 1.4.1 Modal Frequency Distribution for Vehicle Body -- 1.4.2 Body NVH Target System -- 1.4.3 Execution of Body NVH Targets -- 1.5 Structure of This Book -- Chapter 2 Vibration Control of Overall Body Structure -- 2.1 Introduction -- 2.1.1 Overall Body Stiffness -- 2.1.2 Overall Body Modes -- 2.1.3 Scopes of Overall Body Vibration Research -- 2.2 Overall Body Stiffness -- 2.2.1 Body Bending Stiffness -- 2.2.2 Body Torsional Stiffness -- 2.3 Control of Overall Body Stiffness -- 2.3.1 Overall Layout of a Body Structure -- 2.3.2 Body Frame Cross‐Section and Stiffness Analysis -- 2.3.3 Joint Stiffness -- 2.3.4 Influence of Adhesive Bonding Stiffness on Overall Body Stiffness.

2.3.5 Contribution Analysis of Beams and Joints on Overall Body Stiffness -- 2.4 Identification of Overall Body Modes -- 2.4.1 Foundation of Modal Analysis -- 2.4.2 Modal Shape and Frequency of Vehicle Body -- 2.4.3 Modal Testing for Vehicle Body -- 2.4.4 Calculation of Vehicle Body Mode -- 2.5 Control of Overall Body Modes -- 2.5.1 Separation and Decoupling of Body Modes -- 2.5.2 Planning Table/Chart of Body Modes -- 2.5.3 Control of Overall Body Modes -- Bibliography -- Chapter 3 Noise and Vibration Control for Local Body Structures -- 3.1 Noise and Vibration Problems Caused by Vehicle Local Structures -- 3.1.1 Classification and Modes of Local Body Structures -- 3.1.2 Noise and Vibration Problems Generated by Local Modes -- 3.1.3 Control Strategy for Local Modes -- 3.2 Body Plate Vibration and Sound Radiation -- 3.2.1 Vibration of Plate Structure -- 3.2.2 Sound Radiation of Plate Structure -- 3.3 Body Acoustic Cavity Mode -- 3.3.1 Definition and Shapes of Acoustic Cavity Mode -- 3.3.2 Theoretical Analysis and Measurement of Acoustic Cavity Mode -- 3.3.3 Coupling of Acoustic Cavity Mode and Structural Mode -- 3.3.4 Control of Acoustic Cavity Mode -- 3.4 Panel Contribution Analysis -- 3.4.1 Concept of Panel Contribution -- 3.4.2 Contribution Analysis of Panel Vibration and Sound Radiation -- 3.4.3 Testing Methods for Panel Vibration and Sound Radiation -- 3.5 Damping Control for Structural Vibration and Sound Radiation -- 3.5.1 Damping Phenomenon and Description -- 3.5.2 Damping Models -- 3.5.3 Loss Factor -- 3.5.4 Characteristics of Viscoelastic Damping Materials -- 3.5.5 Classification of Body Damping Materials and Damping Structures -- 3.5.6 Measurement of Damping Loss Factor -- 3.5.7 Application of Damping Materials and Structures on Vehicle Body -- 3.6 Stiffness Control for Body Panel Vibration and Sound Radiation.

3.6.1 Mechanism of Stiffness Control -- 3.6.2 Tuning of Plate Stiffness -- 3.6.3 Influence of Plate Stiffness Tuning on Sound Radiation -- 3.6.4 Case Study of Body Stiffness Tuning -- 3.7 Mass Control for Body Panel Vibration and Sound Radiation -- 3.7.1 Mechanism of Mass Control -- 3.7.2 Application of Mass Control -- 3.8 Damper Control for Body Vibration and Sound Radiation -- 3.8.1 Mechanism of Dynamic Damper -- 3.8.2 Application of Dynamic Damper to Attenuate Interior Booming -- 3.9 Noise and Vibration for Body Accessory Components -- 3.9.1 Bracket Mode and Control -- 3.9.2 Control of Steering System Vibration -- 3.9.3 Control of Seat Vibration -- Bibliography -- Chapter 4 Sound Package -- 4.1 Introduction -- 4.1.1 Transfer of Airborne‐Noise to Passenger Compartment -- 4.1.2 Scopes of Sound Package Research -- 4.2 Body Sealing -- 4.2.1 Importance of Sealing -- 4.2.2 Static Sealing and Dynamic Sealing -- 4.2.3 Measurement of Static Sealing -- 4.2.4 Control of Static Sealing -- 4.3 Sound Absorptive Materials -- 4.3.1 Sound Absorption Mechanism and Sound Absorption Coefficient -- 4.3.2 Porous Sound Absorptive Material -- 4.3.3 Resonant Sound Absorption Structure -- 4.3.4 Measurement of Sound Absorption Coefficient -- 4.4 Sound Insulation Materials and Structures -- 4.4.1 Mechanism of Sound Insulation and Sound Transmission Loss -- 4.4.2 Sound Insulation of Single Plate -- 4.4.3 Sound Insulation of Double Plate -- 4.4.4 Measurement of Sound Insulation Materials -- 4.5 Application of Sound Package -- 4.5.1 Application of Sound Absorptive Materials and Structures -- 4.5.2 Application of Combination of Sound Insulation Structures and Sound Absorptive Materials -- 4.5.3 Application of Sound Baffle Material -- 4.6 Statistical Energy Analysis and Its Application -- 4.6.1 Concepts of Statistical Energy Analysis -- 4.6.2 Theory of Statistical Energy Analysis.

4.6.3 Assumptions and Applications of Statistical Energy Analysis -- 4.6.4 Loss Factor -- 4.6.5 Input Power -- 4.6.6 Application of Statistical Energy Analysis on Vehicle Body -- Bibliography -- Chapter 5 Vehicle Body Sensitivity Analysis and Control -- 5.1 Introduction -- 5.1.1 System and Transfer Function -- 5.1.2 Vibration and Sound Excitation Points on Vehicle Body -- 5.1.3 Response Points -- 5.1.4 Body Sensitivity -- 5.2 Source-Transfer Path-Response Model for Vehicle Body -- 5.2.1 Source-Transfer Path-Response Model -- 5.2.2 Source-Transfer Function-Vibration Model for Vehicle Body -- 5.2.3 Source−Transfer Function−Noise Model for Vehicle Body -- 5.3 Characteristics and Analysis of Noise and Vibration Sources -- 5.3.1 Excitation Characteristics of Engine and Related Systems -- 5.3.2 Excitation Characteristics of Drivetrain System -- 5.3.3 Excitation Characteristics of Tires -- 5.3.4 Excitation Characteristics of Rotary Machines -- 5.3.5 Excitation Characteristics of Random or Impulse Inputs -- 5.4 Dynamic Stiffness and Input Point Inertance -- 5.4.1 Mechanical Impedance and Mobility -- 5.4.2 Driving Point Dynamic Stiffness -- 5.4.3 IPI and Driving Point Dynamic Stiffness -- 5.4.4 Control of Driving Point Dynamic Stiffness -- 5.5 Vibration−Vibration Sensitivity and Sound−Vibration Sensitivity -- 5.5.1 Transfer Processing of Vibration Sources to Interior Vibration and Vibration−Vibration Sensitivity -- 5.5.2 Transfer Processing of Vibration Sources to Interior Noise and Sound−Vibration Sensitivity -- 5.5.3 Sensitivity Control -- 5.5.4 Sensitivity Targets -- 5.6 Sound−Sound Sensitivity and Control -- 5.6.1 Sound Transmission from Outside Body to Interior -- 5.6.2 Expression of Sound−Sound Sensitivity -- 5.6.3 Targets and Control of Sound−Sound Sensitivity -- Bibliography -- Chapter 6 Wind Noise -- 6.1 Introduction.

6.1.1 Problems Induced by Wind Noise -- 6.1.2 Sound Sources and Classification of Wind Noise -- 6.2 Mechanism of Wind Noise -- 6.2.1 Pulsating Noise -- 6.2.2 Aspiration Noise -- 6.2.3 Buffeting Noise -- 6.2.4 Cavity Noise -- 6.3 Control Strategy for Wind Noise -- 6.3.1 Transfer Paths of Wind Noise -- 6.3.2 Control Strategy of Wind Noise -- 6.4 Body Overall Styling and Wind Noise Control -- 6.4.1 Ideal Body Overall Styling -- 6.4.2 Design of Transition Region between Front Grill and Engine Hook -- 6.4.3 Design in Area between Engine Hood and Front Windshield -- 6.4.4 Design of A‐Pillar Area -- 6.4.5 Design of Transition Area of Roof, Rear Windshield, and Trunk Lid -- 6.4.6 Underbody Design -- 6.4.7 Design in an Area of Wheelhouse and Body Side Panel -- 6.5 Body Local Design and Wind Noise Control -- 6.5.1 Principles for Body Local Structure Design -- 6.5.2 Design of Side Mirror and Its Connection with Body -- 6.5.3 Sunroof Design and Wind Noise Control -- 6.5.4 Antenna Design and Wind Noise Control -- 6.5.5 Design of Roof Luggage Rack -- 6.5.6 Control of Other Appendages and Outside Cavity -- 6.6 Dynamic Sealing and Control -- 6.6.1 Dynamic Sealing and Its Importance -- 6.6.2 Expression for Dynamic Sealing -- 6.6.3 Dynamic Sealing between Door and Body -- 6.6.4 Control of Dynamic Sealing -- 6.7 Measurement and Evaluation of Wind Noise -- 6.7.1 Wind Noise Testing in Wind Tunnel -- 6.7.2 Wind Noise Testing on Road -- 6.7.3 Evaluation of Wind Noise -- 6.8 Analysis of Wind Noise -- 6.8.1 Relationship Between Aerodynamic Acoustics and Classical Acoustics -- 6.8.2 Lighthill Acoustic Analogy Theory -- 6.8.3 Lighthill‐Curl Acoustic Analogy Theory -- 6.8.4 Solution of Aerodynamic Equations -- 6.8.5 Simulation of Wind Noise -- Bibliography -- Chapter 7 Door Closing Sound Quality -- 7.1 Vehicle Sound Quality -- 7.1.1 Concept of Sound Quality.

7.1.2 Automotive Sound Quality.

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