Noise of Polyphase Electric Motors 1st edition by Jacek Gieras, Chong Wang, Joseph Cho Lai ISBN ‎ 0824723813 ‎ 978-0824723811

Noise of Polyphase Electric Motors 1st edition by Jacek Gieras, Chong Wang, Joseph Cho Lai  – Ebook PDF Instant Download/Delivery. 0824723813 ‎ 978-0824723811
Full download Noise of Polyphase Electric Motors 1st edition after payment

Product details:

ISBN 10: ‎ 0824723813
ISBN 13: ‎ 978-0824723811
Author: Jacek Gieras, Chong Wang, Joseph Cho Lai 

Controlling the level of noise in electrical motors is critical to overall system performance. However, predicting noise of an electrical motor is more difficult and less accurate than for other characteristics such as torque-speed. Recent advances have produced powerful computational methods for noise prediction, and Noise of Polyphase Electric Motors is the first book to collect these advances in a single source. It is also the first to include noise prediction for permanent magnet (PM) synchronous motors.

Complete coverage of all aspects of electromagnetic, structural, and vibro-acoustic noise makes this a uniquely comprehensive reference. The authors begin with the basic principles of noise generation and radiation, magnetic field and radial forces, torque pulsations, acoustic calculations, as well as noise and vibration of mechanical and acoustic origin. Moving to applications, the book examines in detail stator system vibration analysis including the use of finite element method (FEM) modal analysis; FEM for radial pressure and structural modeling; boundary element methods (BEM) for acoustic radiation; statistical energy analysis (SEA); instrumentation including technologies, procedures, and standards; and both passive and active methods for control of noise and vibration.

Noise of Polyphase Electric Motors gathers the fundamental concepts along with all of the analytical, numerical, and statistical methods into a unified reference. It supplies all of the tools necessary to improve the noise performance of electrical motors at the design stage.

Noise of Polyphase Electric Motors 1st Table of contents:

1. Introduction to Electric Motor Noise

   • 1.1. Overview of Electric Motor Noise
   • 1.2. Importance of Noise Control in Motor Design
   • 1.3. Types of Noise Generated by Polyphase Motors
   • 1.4. Impact of Noise on Performance and Applications

2. Chapter 1: Basic Principles of Acoustics

   • 2.1. Fundamentals of Sound and Noise
   • 2.2. Frequency and Amplitude of Sound Waves
   • 2.3. Noise Measurement Techniques
   • 2.4. Psychoacoustics: The Human Perception of Noise
   • 2.5. Sound Level and Noise Rating Systems

3. Chapter 2: Sources of Noise in Polyphase Electric Motors

   • 3.1. Electromagnetic Noise Generation
   • 3.2. Mechanical and Structural Noise
   • 3.3. Aerodynamic Noise (Ventilation and Cooling)
   • 3.4. Interaction Between Windings and Magnetic Fields
   • 3.5. Effects of Motor Design on Noise Emissions

4. Chapter 3: Noise Characteristics of Polyphase Motors

   • 4.1. Harmonics in Polyphase Motor Systems
   • 4.2. Influence of Motor Load on Noise Levels
   • 4.3. Noise Spectrum of Induction Motors and Synchronous Motors
   • 4.4. Sound Frequency Bands and Motor Operation
   • 4.5. Role of Bearings and Shaft Alignment in Noise Generation

5. Chapter 4: Vibration and Noise Measurement

   • 5.1. Measuring Tools and Equipment for Motor Noise
   • 5.2. Vibration Analysis and Noise Correlation
   • 5.3. Use of Accelerometers and Microphones in Noise Studies
   • 5.4. Data Acquisition Systems and Analysis Software
   • 5.5. Standards and Protocols for Noise Measurement

6. Chapter 5: Acoustic Modeling of Electric Motors

   • 6.1. Theoretical Models of Motor Noise Generation
   • 6.2. Simulation of Acoustic Behavior in Motors
   • 6.3. Finite Element Analysis (FEA) in Noise Prediction
   • 6.4. Modeling of Magnetic Forces and Their Impact on Noise
   • 6.5. Computational Methods for Acoustic Simulation

7. Chapter 6: Control and Reduction of Noise in Motors

   • 7.1. Noise Reduction Strategies in Motor Design
   • 7.2. Use of Sound Insulation and Enclosures
   • 7.3. Vibration Dampening and Motor Mounting Techniques
   • 7.4. Modifying the Magnetic Design to Reduce Noise
   • 7.5. Active Noise Control and Other Advanced Methods

8. Chapter 7: Noise and Vibration in Variable-Speed Motors

   • 8.1. Noise Characteristics of Variable Frequency Drives (VFDs)
   • 8.2. Harmonic Distortion and Its Effect on Noise Levels
   • 8.3. Control Techniques for Minimizing Noise in Variable-Speed Operation
   • 8.4. Impact of Motor Inverters on Acoustic Emissions
   • 8.5. Case Studies of Variable-Speed Motor Noise Control

9. Chapter 8: Noise Standards and Regulatory Issues

   • 9.1. International Standards for Electric Motor Noise
   • 9.2. Noise Regulations in Different Industries
   • 9.3. Environmental and Occupational Noise Standards
   • 9.4. Compliance with Noise Emission Limits
   • 9.5. Certification and Testing Procedures

10. Chapter 9: Applications and Future Directions

• 10.1. Noise Control in Industrial Motors
• 10.2. Quiet Motors for Consumer Appliances
• 10.3. Electric Motors in Automotive and Aerospace Applications
• 10.4. Emerging Technologies for Noise Reduction
• 10.5. Future Trends in Motor Noise Control

11. Appendices

• A.1. Glossary of Terms
• A.2. Noise Measurement Equipment Specifications
• A.3. Reference Tables for Acoustic Units
• A.4. Software for Motor Noise Simulation
• A.5. Index

People also search for Noise of Polyphase Electric Motors 1st:

noise of polyphase electric motors pdf

do electric motors make noise

electric motor noise troubleshooting

how to quiet electric motor

polyphase electric motor