Vibration Analysis / Sound Pressure Analysis

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  1. Vibration Analysis to Rotor Machine Using System Analysis

    Junichi Ichimura, NewtonWorks Corporation

  2. NVH Analysis of an Electric Vehicle Traction Motor with JMAG and Romax Products

    Hiroshi Koyama, Romax Technology Japan Limited

  3. [L-MO-108] Motor Performance Evaluation Considering Control

    At the motor component design stage, motor performance is evaluated using an ideal sinusoidal current.

  4. 254 – Vibration Analysis of a Large Oil-Filled Transformer

    In this example, evaluating vibration caused by electromagnetic excitation in a large transformer. Since large transformers are oil-cooled, in this example the oil, which is the f…

  5. 20 – Sound Pressure Analysis of an SPM Motor

    This Application Note shows an example of an evaluation of a reactor’s sound pressure, when acquiring electromagnetic force generated by a stator core for a SPM motor and linking …

  6. 251 – Alternator Vibration Analysis

    In this example, the electromagnetic force generated in the stator core of a claw pole alternator is obtained, and acceleration is evaluated with an electromagnetic force - struct…

  7. [L-TR-44] Winding Vibration Analysis of a Power Transformer

    Winding vibration originating from a transformer is a vibration phenomenon that uses Lorentz force as the vibration force, which occurs when flux leakage from the winding works on…

  8. Investigating the Possibility of Improving Performance by Applying CFRP to Outer Rotor Housing

    Yoshiyuki Sakashita, PUES Corporation

  9. Right First Time Design of e-Drive NVH

    Hiroshi Koyama, Romax Technology Japan Limited

  10. Low Oscillation Actuator for Force-controlled Medical Robot Arm

    Tetsuharu Fukushima, Sony Imaging Products & Solutions Inc.

  11. Case Study of Motor Noise for In-Wheel Motor Electric Vehicle

    Takayuki Miyakawa, Nissan Motor Co.,Ltd.

  12. 226 – Vibration Characteristics Analysis of SPM Motors

    In this example, the acceleration is evaluated by obtaining the electromagnetic force generated in the stator core of the SPM motor at multiple rotation speeds and coupling with t…

  13. [L-MU-93] JMAG/Adams/Simulink Coupled Vehicle Drive Simulation

    Generally, it is said that drive motors used in electric cars have less vibration than engines, however, vibration caused by torque ripple may be transmitted to the entire vehicle…

  14. 234 – Vibration Characteristics Analysis of an Induction Motor

    In this example, electromagnetic force generated in the induction motor stator core is obtained, and an example of evaluating sound pressure by linking it with the eigenmode of th…

  15. 184 – Reactor Sound Pressure Analysis taking Magnetostriction into Account

    These notes will conduct an analysis of changed vibratory force and show a case study of confirming the impact magnetostriction has on vibration noise.

  16. [W-MO-23] Measurement of PM Motor Vibration/Noise and Analysis Modeling

    Overview1. IntroductionWhile miniaturization and efficiency optimization are always in demand in motor development, demand is also increasing for the reduction of vibration and no…

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