KR20070018740A - 진동 이벤트 분석 방법 및 회전 기계 모니터링 시스템 - Google Patents
진동 이벤트 분석 방법 및 회전 기계 모니터링 시스템 Download PDFInfo
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- KR20070018740A KR20070018740A KR1020060075728A KR20060075728A KR20070018740A KR 20070018740 A KR20070018740 A KR 20070018740A KR 1020060075728 A KR1020060075728 A KR 1020060075728A KR 20060075728 A KR20060075728 A KR 20060075728A KR 20070018740 A KR20070018740 A KR 20070018740A
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- vibration
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- 238000004458 analytical method Methods 0.000 title claims description 24
- 238000012544 monitoring process Methods 0.000 title claims description 11
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- 238000012545 processing Methods 0.000 description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/12—Testing internal-combustion engines by monitoring vibrations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Collating Specific Patterns (AREA)
Abstract
Description
Claims (10)
- 진동 이벤트를 분석하는 방법에 있어서,진동 신호를 획득하는 단계(18)와,상기 획득된 신호에서 진동 신호 이벤트를 분리하는 단계(20)와,상기 진동 신호 이벤트의 고유 주파수를 결정하고, 상기 고유 주파수에 대응하는 감폭형 사인곡선을 사용하여 상기 진동 신호 이벤트를 특징화하는 단계(30)와,특징적 감폭형 사인곡선을 사용하여 또 다른 진동 신호 내에서 발생하는 상기 진동 신호 이벤트를 식별하는 단계(36,40)를 포함하는진동 이벤트 분석 방법.
- 제 1 항에 있어서,상기 특징적 감폭형 사인곡선의 주파수를 결정하는 단계(30)는 단기 퓨리에 변환을 사용하여 상기 진동 신호 이벤트의 고유 주파수를 식별하는 단계를 포함하는 진동 이벤트 분석 방법.
- 제 1 항에 있어서,상기 특징적 감폭형 사인곡선에 대한 감폭 계수를 결정하는 단계(26,28,30)를 더 포함하는 진동 이벤트 분석 방법.
- 제 3 항에 있어서,상기 감폭 계수를 결정하는 단계는 상기 진동 신호 이벤트에 지수함수를 피팅하여(단계 28) 상기 특징적 감폭형 사인곡선에 대한 상기 감폭 계수를 결정하는 단계를 더 포함하는 진동 이벤트 분석 방법.
- 제 1 항에 있어서,상기 진동 신호 이벤트에 지수함수를 피팅하는 단계(28)를 더 포함하는 진동 이벤트 분석 방법.
- 제 5 항에 있어서,상기 함수의 피팅(28)은 다양한 감쇠 계수를 갖는 지수 함수를 상기 진동 신호 이벤트의 신호 포락선에 비교하고 상기 감쇠 계수 중 하나를 선택하여 상기 감폭 계수를 결정하는 단계를 더 포함하는 진동 이벤트 분석 방법.
- 제 1 항에 있어서,상기 특징적 감폭형 사인곡선을 사용하여 상기 진동 신호 이벤트의 발생을 식별하는 단계는 웨이블릿 분석을 포함하는 진동 이벤트 분석 방법.
- 회전 기계(50)를 모니터링하는 시스템에 있어서,상기 기계에 결합되어 신호를 생성하는 진동 센서(52)와,신호 조절 및 분석 유닛(60)과 디스플레이 및 제어 유닛(62)을 더 포함하는 PBSA(physics based signal analyzer)(56)를 포함하되, 상기 신호 조절 및 분석 유닛은 상기 신호에 인가되는 특징적 감폭형 사인곡선을 생성하고 상기 사인곡선에 대응하는 상기 신호 내에서 진동 이벤트를 식별하며, 상기 디스플레이 및 제어 유닛은 상기 식별된 진동 이벤트를 나타내는 디스플레이 이미지를 생성하는모니터링 시스템.
- 제 8 항에 있어서,상기 기계 내에서의 회전 샤프트(shaft)의 회전 위치를 나타내는 회전 신호를 생성하는 샤프트 인코더(shaft encoder)(54)를 더 포함하고, 상기 PBSA는 상기 회전 신호와 상기 식별된 진동 이벤트를 상관시키며 상기 진동 이벤트와 샤프트 각 도 위치 사이의 상관값을 상기 디스플레이 이미지 상에 디스플레이하는 모니터링 시스템.
- 제 8 항에 있어서,상기 특징적 감쇠 사인곡선에 의해 모델링되는 시그너쳐 진동 이벤트를 식별하는 사용자 입력을 수신하기 위한, 상기 디스플레이 및 제어 유닛(62)에 대한 제어 입력을 더 포함하는 모니터링 시스템.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/200,156 | 2005-08-10 | ||
US11/200,156 US7317994B2 (en) | 2005-08-10 | 2005-08-10 | Method and apparatus for signal signature analysis for event detection in rotating machinery |
Publications (2)
Publication Number | Publication Date |
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KR20070018740A true KR20070018740A (ko) | 2007-02-14 |
KR101317986B1 KR101317986B1 (ko) | 2013-10-14 |
Family
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Application Number | Title | Priority Date | Filing Date |
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KR1020060075728A KR101317986B1 (ko) | 2005-08-10 | 2006-08-10 | 진동 이벤트 분석 방법 및 회전 기계 모니터링 시스템 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7317994B2 (ko) |
EP (1) | EP1752754B1 (ko) |
JP (1) | JP5162114B2 (ko) |
KR (1) | KR101317986B1 (ko) |
CN (1) | CN1912562B (ko) |
DK (1) | DK1752754T3 (ko) |
RU (1) | RU2418278C2 (ko) |
Cited By (1)
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KR101355888B1 (ko) * | 2013-08-13 | 2014-01-27 | 공주대학교 산학협력단 | 차량용 전자식 솔레노이드 구조의 진동특성 평가방법 |
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CN105134619B (zh) * | 2015-09-28 | 2017-03-01 | 北京航空航天大学 | 一种基于小波能量、流形降维和动态时间规整的故障诊断与健康评估方法 |
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2005
- 2005-08-10 US US11/200,156 patent/US7317994B2/en not_active Expired - Fee Related
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2006
- 2006-08-07 EP EP06254135A patent/EP1752754B1/en not_active Not-in-force
- 2006-08-07 DK DK06254135.4T patent/DK1752754T3/da active
- 2006-08-09 RU RU2006128985/28A patent/RU2418278C2/ru not_active IP Right Cessation
- 2006-08-09 JP JP2006216558A patent/JP5162114B2/ja not_active Expired - Fee Related
- 2006-08-10 CN CN2006101148143A patent/CN1912562B/zh not_active Expired - Fee Related
- 2006-08-10 KR KR1020060075728A patent/KR101317986B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101355888B1 (ko) * | 2013-08-13 | 2014-01-27 | 공주대학교 산학협력단 | 차량용 전자식 솔레노이드 구조의 진동특성 평가방법 |
Also Published As
Publication number | Publication date |
---|---|
EP1752754A3 (en) | 2010-03-24 |
US20070038392A1 (en) | 2007-02-15 |
KR101317986B1 (ko) | 2013-10-14 |
RU2418278C2 (ru) | 2011-05-10 |
CN1912562A (zh) | 2007-02-14 |
CN1912562B (zh) | 2012-01-25 |
JP5162114B2 (ja) | 2013-03-13 |
JP2007047168A (ja) | 2007-02-22 |
EP1752754A2 (en) | 2007-02-14 |
RU2006128985A (ru) | 2008-02-20 |
US7317994B2 (en) | 2008-01-08 |
DK1752754T3 (da) | 2013-02-04 |
EP1752754B1 (en) | 2012-11-28 |
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