Vibrations and Noises in Small Electric Motors

Beschreibung

This book is intended to provide assistance for an efficient and goal-oriented approach to eliminating vibration and acoustic problems in small electric drives.
It is hard for us to imagine today’s world without electric motors. At the same time, we are becoming increasingly demanding when it comes to the acoustic quality of these motors. Manufacturers of motors and other equipment increasingly need to have broad competence in dealing with noise. In fact, success in the competitive marketplace is coming to depend on having such acoustic know-how. This book is intended to provide assistance for an efficient and goal-oriented approach to eliminating vibration and acoustic problems in small electric drives. Furthermore, it is intended to create a basis for a uniform understanding of noise and to provide a communication basis for constructive customer-supplier relationships. It was developed from industrial practice and is suitable for engineers in development, production technology and quality management who are concerned with vibrations and noise from drives in their products. • Causes of vibrations and noises in small motors • Options for reducing and optimizing noises • Mechanical oscillations • Basic acoustic concepts • Measuring noises and vibrations • Analysis of noises and vibrations • Testing vibrations and noises • Examples of actual systems

Autor*in

Thomas Bertolini

Themen in »Vibrations and Noises in Small Electric Motors«

Accelerometer, Acoustics, Active noise compensation, Active noise reduction, Airborne noise, Airborne noise level, Auditory test, Auditory threshold, A-weighting, Binaural measurement technology, Calibratability Characteristic to be tested, Chirping noise, Cogging torque, Commutation noise, Commutator, Crest factor, Damping, Differential equation, Directional characteristics, Displacement excitation Dummy head, Dynamic imbalance, EC motors, Elasticity, Excitation frequency, Fluid-borne noise, Forced excitation, Force excitation, Force excitations Free-field conditions, Frequency, Friction noises, Insulation, IsolatingK Kurtosis, Laser vibrometer, Limit sample, Loudness, Loudness leve,l Magnetic tensile forces, Metal brushes, Microphone, Motor imbalance, Movement equation, Natural frequency, Natural oscillation Natural oscillation behavior, Natural oscillation shape, Natural waveshape, Neuronal networks, Noise event, Noise quality, Noise test procedure, Number of elements, Objective noise testing, Objective testing, Octave band One-third band, Operating vibration shape analysis, Operation above resonance, Optimizing noises, Order analysis, Oscillation antinode, Oscillation isolation, Oscillation mode, Oscillation node, Pair comparison, Perceived loudness Perception, Perception of noise, Plain bearings, Pressure variation, Psychoacoustics Radial roller bearing, Relative sound radiation, Reluctance stepper motors, Repeatability Reproducibility, Reverberation chamber, RMS value, Roller bearings, Run-up analysis, Scanning vibrometer, Segments, Semantic differentials, Sense of touch, Sharpness, Shock absorber, Slip rings, Sone, Sound field, Sound intensity, Sound reflection factor, Sound transmission factor, Sound velocity, Sound volume, Sound wave resistance, Spectrum Static imbalance, Stepper motors, Structure-borne noise, Subjective testing, Synchronous machines, Threshold of pain, Threshold of perception, Time-range values, Velocity of sound, Wavelength, Weighting curves, Weighting of noise

Stimmen zu »Vibrations and Noises in Small Electric Motors«

Details

Link teilen