Abstract
Ball Bearings are critical components in rotational machineries. Although various diagnostic methods have been proposed, most of them are based on passive methods utilizing the signals generated from rotating machineries themselves. Such passive methods usually require continuous measurement and have limited resolution on the damage in certain circumstances. In this paper, a new active diagnostic approach using amplitude modulation of the ultrasonic waves is proposed. By introducing this modulation, we are able to widen the frequency range of the signals. The ultrasonic waves are constantly emitted to the target ball bearing to pick up the damage signals. The signals generated from ball bearings that have strong correlations with the possible damage result in modulation of the carrier waves. Thus, change of signals such as amplitudes and frequencies associated with abnormality of ball bearing can be detected.
| Original language | English |
|---|---|
| Pages (from-to) | 729-734 |
| Number of pages | 6 |
| Journal | Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C |
| Volume | 72 |
| Issue number | 3 |
| Publication status | Published - 2006 Mar |
| Externally published | Yes |
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Keywords
- Amplitude Modulation
- Ball Bearing
- Diagnostics
- Rotating Machinery
- Ultrasonic Wave
ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Health monitoring of ball bearings in a flywheel using amplitude modulation of ultrasonic waves. / Awata, Atsushi; Mita, Akira.
In: Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 72, No. 3, 03.2006, p. 729-734.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Health monitoring of ball bearings in a flywheel using amplitude modulation of ultrasonic waves
AU - Awata, Atsushi
AU - Mita, Akira
PY - 2006/3
Y1 - 2006/3
N2 - Ball Bearings are critical components in rotational machineries. Although various diagnostic methods have been proposed, most of them are based on passive methods utilizing the signals generated from rotating machineries themselves. Such passive methods usually require continuous measurement and have limited resolution on the damage in certain circumstances. In this paper, a new active diagnostic approach using amplitude modulation of the ultrasonic waves is proposed. By introducing this modulation, we are able to widen the frequency range of the signals. The ultrasonic waves are constantly emitted to the target ball bearing to pick up the damage signals. The signals generated from ball bearings that have strong correlations with the possible damage result in modulation of the carrier waves. Thus, change of signals such as amplitudes and frequencies associated with abnormality of ball bearing can be detected.
AB - Ball Bearings are critical components in rotational machineries. Although various diagnostic methods have been proposed, most of them are based on passive methods utilizing the signals generated from rotating machineries themselves. Such passive methods usually require continuous measurement and have limited resolution on the damage in certain circumstances. In this paper, a new active diagnostic approach using amplitude modulation of the ultrasonic waves is proposed. By introducing this modulation, we are able to widen the frequency range of the signals. The ultrasonic waves are constantly emitted to the target ball bearing to pick up the damage signals. The signals generated from ball bearings that have strong correlations with the possible damage result in modulation of the carrier waves. Thus, change of signals such as amplitudes and frequencies associated with abnormality of ball bearing can be detected.
KW - Amplitude Modulation
KW - Ball Bearing
KW - Diagnostics
KW - Rotating Machinery
KW - Ultrasonic Wave
UR - http://www.scopus.com/inward/record.url?scp=33745022426&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33745022426&partnerID=8YFLogxK
M3 - Article
VL - 72
SP - 729
EP - 734
JO - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
JF - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
SN - 0387-5024
IS - 3
ER -