SU637755A1 - Method of determining dynamic characteristics of turbounit support structure - Google Patents

Method of determining dynamic characteristics of turbounit support structure

Info

Publication number
SU637755A1
SU637755A1 SU772464070A SU2464070A SU637755A1 SU 637755 A1 SU637755 A1 SU 637755A1 SU 772464070 A SU772464070 A SU 772464070A SU 2464070 A SU2464070 A SU 2464070A SU 637755 A1 SU637755 A1 SU 637755A1
Authority
SU
USSR - Soviet Union
Prior art keywords
dynamic characteristics
turbounit
support structure
determining dynamic
supports
Prior art date
Application number
SU772464070A
Other languages
Russian (ru)
Inventor
Валерий Львович Шибер
Original Assignee
Харьковский Филиал Центрального Конструкторского Бюро Главэнергоремонта
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 Харьковский Филиал Центрального Конструкторского Бюро Главэнергоремонта filed Critical Харьковский Филиал Центрального Конструкторского Бюро Главэнергоремонта
Priority to SU772464070A priority Critical patent/SU637755A1/en
Application granted granted Critical
Publication of SU637755A1 publication Critical patent/SU637755A1/en

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Landscapes

  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Description

Способ осуществл етс  следующим образом .The method is carried out as follows.

С помощью механического вибратора возбуждают колебани  каждой опоры поочередно в горизонтальном и вертикальном направлени х . Частота возбуждающей силы измен етс  в диапазоне частот вращени  валопровода турбоагрегата. При действии возбуждающей силы в одном направлении измер ют амплитуды и фазы перемещени  опор в гопизонтальном и вертикальном направлени х . По результатам измерений определ ют восемь динамических характеристик опор (четыре коэффициента жесткости и четыре коэффициента демпфировани ) на каждой частоте возбуждающей силы путем решени  системы линейных дифференциальных-управлений , описывающих движение опор под действием горизонтальной и вертикальной силы, поочередно возбуждаемой вибратором.With the help of a mechanical vibrator, vibrations of each support are excited alternately in horizontal and vertical directions. The frequency of the driving force varies in the frequency range of rotation of the turbine shaft shaft. Under the action of a driving force in one direction, the amplitudes and phases of displacement of the supports are measured in the horizontal and vertical directions. Based on the measurement results, eight dynamic characteristics of the supports (four stiffness coefficients and four damping coefficients) are determined at each frequency of the driving force by solving a system of linear differential-controls describing the movement of the supports under the action of a horizontal and vertical force alternated by a vibrator.

Использование восьми динамических характеристик опор, получаемых по предложенному способу, позвол ет повысить точность определени  характеристик опор и определени  колебаний сисремы. «валопровод-опоры турбоагрегатов , которые нейбходнмы дл  оценки и повышени  вибрационной надежности турбоагрегатов и совершенствовани  методов балансировки роторов.The use of eight dynamic characteristics of the supports, obtained by the proposed method, improves the accuracy of determining the characteristics of the supports and determining the oscillations of the sysrem. “Shaft-support of turbine units, which are essential for assessing and improving the vibration reliability of turbine units and improving methods of balancing rotors.

Claims (2)

1.Сахаров Н. Е. и Людика Г. Л. Определение динамической жесткости опор ротора турбоагрегата. Вестник электропромышленности , 1957, № 5.1.Sakharov N.Ye. and Lyudykas G.L. Determination of the dynamic stiffness of the rotor supports of the turbine unit. Bulletin of the Electric Industry, 1957, № 5. 2.Орлов И. И. и др. Динамические характеристики опор валопроводов мо1цных энергетических турбоагрегатов. «Энергомашиностроение , 1975, № 10.2.Orlov I.I. and others. Dynamic characteristics of the supports of the shaft lines of power energy turbine units. “Power Machinery, 1975, № 10.
SU772464070A 1977-03-18 1977-03-18 Method of determining dynamic characteristics of turbounit support structure SU637755A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772464070A SU637755A1 (en) 1977-03-18 1977-03-18 Method of determining dynamic characteristics of turbounit support structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772464070A SU637755A1 (en) 1977-03-18 1977-03-18 Method of determining dynamic characteristics of turbounit support structure

Publications (1)

Publication Number Publication Date
SU637755A1 true SU637755A1 (en) 1978-12-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU772464070A SU637755A1 (en) 1977-03-18 1977-03-18 Method of determining dynamic characteristics of turbounit support structure

Country Status (1)

Country Link
SU (1) SU637755A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103217308A (en) * 2013-03-27 2013-07-24 清华大学 Complete machine dynamic stiffness testing system for numerical control machine tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103217308A (en) * 2013-03-27 2013-07-24 清华大学 Complete machine dynamic stiffness testing system for numerical control machine tool

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