SU1450561A1 - METHOD OF VIBRATION CONTROL OF MACHINE - Google Patents

METHOD OF VIBRATION CONTROL OF MACHINE

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Publication number
SU1450561A1
SU1450561A1 SU4180143/28A SU4180143A SU1450561A1 SU 1450561 A1 SU1450561 A1 SU 1450561A1 SU 4180143/28 A SU4180143/28 A SU 4180143/28A SU 4180143 A SU4180143 A SU 4180143A SU 1450561 A1 SU1450561 A1 SU 1450561A1
Authority
SU
USSR - Soviet Union
Prior art keywords
frequency
rotor
machine
node
periodic load
Prior art date
Application number
SU4180143/28A
Other languages
Russian (ru)
Inventor
Ю.Л. Израилев
К.В. Фролов
В.З. Партон
Original Assignee
Всесоюзный Теплотехнический Научно-Исследовательский Институт Им.Ф.Э.Дзержинского
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Всесоюзный Теплотехнический Научно-Исследовательский Институт Им.Ф.Э.Дзержинского filed Critical Всесоюзный Теплотехнический Научно-Исследовательский Институт Им.Ф.Э.Дзержинского
Priority to SU4180143/28A priority Critical patent/SU1450561A1/en
Application granted granted Critical
Publication of SU1450561A1 publication Critical patent/SU1450561A1/en

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  • Control Of Positive-Displacement Air Blowers (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

1. Способ вибрационного контроля машины, заключающийся в том, что анализируют вибросигнал отклика, вызванного действием периодической нагрузки на контролируемый узел машины, определяют собственные частоты узла и боковые составляющие спектра вибрации с частотой ω+nΩ где Ω - частота периодической нагрузки; ω- собственная частота узла машины; n = 1, 2, 3, ..., отличающийся тем, что, с целью повышения чувствительности обнаружения трещин ротора турбомашины, воздействуют на ротор периодической нагрузкой с частотой, равной собственной частоте ротора, оценивают наличие трещин ротора по величине отношения амплитуд боковых составляющих к амплитуде соответствующей собственной частоты ротора.2. Способ по п.1, отличающийся тем, что для оценки наличия трещины выбирают боковую составляющую с частотой ω+nΩ = ω, где ω- резонансная частота колебаний ротора по К форме.1. The method of vibration control of the machine, which consists in analyzing the vibration signal of the response caused by the action of a periodic load on the monitored node of the machine, determine the natural frequencies of the node and the lateral components of the vibration spectrum with a frequency ω + nΩ where Ω is the frequency of the periodic load; ω is the natural frequency of the machine node; n = 1, 2, 3, ..., characterized in that, in order to increase the sensitivity of detecting rotor cracks of a turbomachine, the rotor is subjected to a periodic load with a frequency equal to the rotor natural frequency, the presence of rotor cracks is measured by the ratio of the amplitudes of the lateral components the amplitude of the corresponding natural frequency of the rotor. The method according to claim 1, characterized in that for assessing the presence of a crack, the side component is chosen with a frequency ω + nΩ = ω, where ω is the resonant frequency of the rotor oscillations in K form.

SU4180143/28A 1987-01-12 1987-01-12 METHOD OF VIBRATION CONTROL OF MACHINE SU1450561A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4180143/28A SU1450561A1 (en) 1987-01-12 1987-01-12 METHOD OF VIBRATION CONTROL OF MACHINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4180143/28A SU1450561A1 (en) 1987-01-12 1987-01-12 METHOD OF VIBRATION CONTROL OF MACHINE

Publications (1)

Publication Number Publication Date
SU1450561A1 true SU1450561A1 (en) 1999-10-20

Family

ID=60536192

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4180143/28A SU1450561A1 (en) 1987-01-12 1987-01-12 METHOD OF VIBRATION CONTROL OF MACHINE

Country Status (1)

Country Link
SU (1) SU1450561A1 (en)

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