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A method for calculating the electromagnetic noise of a motor-driven thin blade fan

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Abstract

An urgent need exists to develop a method of predicting the noise level of a blade fan attached to a motor shaft. To satisfy this requirement, we developed a method for calculating the sound generated when a rotating blade is excited by the torque pulsation of a motor. The sound pressure values calculated by the new method for a rotating blade were found to correspond well with experimentally measured ones.

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Abbreviations

ds :

Reference small area (m2);

j :

Imaginary unit;

k :

Free field wave number of planewave (1/m);

P :

Field point (m);

p :

Sound pressure level (Pa);

q :

Angle of sound radiator (rad);

R :

Observed radius (m);

r :

Distance from reference small area ds (m);

r i :

Instantaneous distance from ith node to P (m);

S :

Area of sound radiator (m2);

V :

Velocity distribution of sound radiator (m/s);

v i :

Amplitude of velocity at ith node (m/s);

φ i :

Phase of velocity at ith node (rad);

ρ:

Mass density (kg/m3);

ω:

Angular frequency (rad/s);

ωr:

Angular velocity of rotating radiator (rad/s);

References

  • Boldea I, Dumitrescu T, Nasar SA (1999) Unified analysis of 1-phase AC motors having capacitors in auxiliary windings. IEEE Trans Ener Conv 14(3):577–582

    Article  Google Scholar 

  • Craggs JL (1993) Specifying and measuring the noise level of electric motors in operation. IEEE Trans Ind Appl 29(3):611–615

    Article  Google Scholar 

  • Hagiwara N, Suzuyama T, Ishii H, Kohno T (1984) Influences of difference in blade natural frequency and damping on fan resonant amplitudes (analysis for engine order resonances) (in Japanese). Trans Jpn Soc Mech Eng 50(458C):1939–1945

    Google Scholar 

  • Honda Y, Saburi S, Matsuhisa H, Sato S (1993) Active minimization of blade rotational noise from an axial fan (in Japanese). Trans Jpn Soc Mech Eng 59(562C):228–233

    Google Scholar 

  • Hori Y (1979) Calculation of sound fields radiated by an arbitrarily shaped vibrating body (in Japanese). J Acous Soc Jpn 35(9):486–492

    Google Scholar 

  • Ishibashi F, Noda S, Mochizuki M (1998) Numerical simulation of electromagnetic vibration of small induction motors. IEE Proc Electr Power Appl 145(6):528–534

    Article  Google Scholar 

  • Iwata Y, Sato H, Morioka Y (1991) Natural frequency of rotor with rotor core (in Japanese). Trans Jpn Soc Mech Eng 57(544C):8–13

    Google Scholar 

  • Kimball AL, Alger PL (1924) Single-phase motor-torque pulsations. A.I.E.E Trans 43:730–739

    Google Scholar 

  • Matsubara K, Ida M, Obata T, (1998) Avoiding first mode resonance in rigid-body-vibration mode of rotors for small induction motors (in Japanese). Trans Jpn Soc Mech Eng 64(625C):79–84

    Google Scholar 

  • Mechel FP (2002) Formula of acoustics. Springer, Berlin Heidelberg New York

    Google Scholar 

  • Morrill WJ (1929) The revolving field theory of the capacitor motor. A I E E Trans 48:614–632

    Google Scholar 

  • Neves CGC, Carlson R, Sadowski N, Bastos JPA, Soeiro NS, Gerges SNY (2000) Calculation of electromagnetic-mechanic-acoustic behavior of a switched reluctance motor. IEEE Trans Magn 36(4):1364–1367

    Article  Google Scholar 

  • Otsuta K, Iwamura Y (1986) The Noise reduction of thin blade propeller fans. (in Japanese) Trans Jpn Soc Mech Eng 53(487B):917–921

    Google Scholar 

  • Roy SC, François MM, Tomothy JEM (1996) Vibration modes and acoustic noise in a four-phase switched reluctance motor. IEEE Trans Ind Appl 32(6):1357–1364

    Article  Google Scholar 

  • Shiohata K, Nemoto K, Nagawa Y, Sakamoto S, Kobayashi T, Itou M, Koharagi H (1998) A method for analyzing electromagnetic-force-induced vibration and noise analysis (in Japanese). Trans Inst Elec Eng Jpn 118(11D):1301–1307

    Google Scholar 

  • Timar PL (1992) Noise test on rotating electrical motors. Electric Machines and Power Systems 20:339–353

    Google Scholar 

  • Wang C, Lai JCS (1999) Vibration analysis of an induction motor. J Sound Vibration 224(4):733–756

    Article  Google Scholar 

  • Yokozuka T (1971) Analysis of the capacitor-start, induction-run motors (in Japanese). Trans Inst Elec Eng Jpn 91(11):113–122

    Google Scholar 

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Authors and Affiliations

  1. Applied Systems Engineering, Graduate School of Tokyo Denki University, Ishizaka, Hatoyama, Hiki-Gun, 350-0394, Saitama, Japan

    H. Ota

  2. Department of Intelligent Mechanical Engineering, Tokyo Denki University, Ishizaka, Hatoyama, Hiki-Gun, 350-0394, Saitama, Japan

    T. Sato

  3. Ecole Nationale Supérieure de Mécanique et des Microtechniques, 25030, Besancon, France

    C. Baup

  4. Shimizu Works, Hitachi Air Conditioning Systems Co., Ltd., Japan

    J. Okamoto, M. Nagai & K. Nagahashi

Authors
  1. H. Ota
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  2. T. Sato
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  3. C. Baup
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  4. J. Okamoto
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  5. M. Nagai
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  6. K. Nagahashi
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Correspondence to H. Ota.

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Ota, H., Sato, T., Baup, C. et al. A method for calculating the electromagnetic noise of a motor-driven thin blade fan. Microsyst Technol 11, 559–564 (2005). https://doi.org/10.1007/s00542-005-0554-0

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  • DOI: https://doi.org/10.1007/s00542-005-0554-0

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