CN109520830A - A kind of pipeline elastic element acoustic states on-Line Monitor Device - Google Patents

A kind of pipeline elastic element acoustic states on-Line Monitor Device Download PDF

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Publication number
CN109520830A
CN109520830A CN201811412876.1A CN201811412876A CN109520830A CN 109520830 A CN109520830 A CN 109520830A CN 201811412876 A CN201811412876 A CN 201811412876A CN 109520830 A CN109520830 A CN 109520830A
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elastic element
pipeline
acoustic states
foil gauge
stress
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CN201811412876.1A
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CN109520830B (en
Inventor
卢兆刚
亢维佳
李红钢
鲁民月
苏胜利
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719th Research Institute of CSIC
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719th Research Institute of CSIC
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0017—Tensile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0021—Torsional
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0676—Force, weight, load, energy, speed or acceleration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0682—Spatial dimension, e.g. length, area, angle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Pipeline Systems (AREA)

Abstract

The invention discloses a kind of pipeline elastic element acoustic states on-Line Monitor Device, which includes foil gauge, terminal box, data acquisition module, data processing module and indication control board；Foil gauge is two groups, and two groups of foil gauges are arranged in two positions, first is that vibration damping adapter tube outlet side flange is circumferential, the torsion stress taken over to monitor vibration damping determines torsion acoustic states for position；Position is second is that the pipeline being connected with adapter tube is axial, to monitor the axially loaded of vibration damping adapter tube, the axial acoustic states of judgement；Stress section measurement obtains the strain at pipeline elastic element, is delivered to data acquisition module and data processing module by terminal box, according to the processing of corresponding software for calculation, forms the acoustic states of elastic element, and show on display panel control.

Description

A kind of pipeline elastic element acoustic states on-Line Monitor Device
Technical field
The invention belongs to Control Technique of Vibration and Noise fields, and in particular to a kind of acoustic states on-line monitoring of elastic element Device.
Background technique
The acoustic states of pipeline elastic element are mainly characterized by rigidity, mechanical impedance, and warship system pipeline uses a large amount of Vibration damping adapter tube and resilient support etc. elastic elements carry out Vibration Absorbing System Design, the acoustic states of these pipeline elastic elements are by its stress And the decision of deformation state.Since the deformation of these elastic elements and the on-line measurement of acoustic states and assessment difficulty are big, influence The monitoring and control of the Sound stealth performance of naval vessels.
Summary of the invention
In view of this, can be realized non-the present invention provides a kind of pipeline elastic element acoustic states on-Line Monitor Device Contact type measurement meets ships environment requirement, and reliable and stable, anti-external interference is strong, can effective real-time measurement and assessment pipeline bullet The acoustic states of property element.
A kind of pipeline elastic element acoustic states on-Line Monitor Device, the detection device include foil gauge, terminal box, data Acquisition module, data processing module and indication control board；
The foil gauge is two groups, and two groups of foil gauges are arranged in two positions, and position is first is that vibration damping adapter tube outlet side flange It is circumferential, to monitor the torsion stress of vibration damping adapter tube, determine torsion acoustic states；Position is second is that the pipeline axis being connected with adapter tube To monitor the axially loaded of vibration damping adapter tube, the axial acoustic states of judgement；The stress section measurement obtains pipeline elastic element The strain at place is delivered to data acquisition module and data processing module by terminal box, according to the processing of corresponding software for calculation, The acoustic states of elastic element are formed, and are shown on display panel control.
Further, every group of the foil gauge is three pieces, and first group of foil gauge setting takes over outlet side flange week in vibration damping To, two foil gauges along flange circumferentially, and mutually angle in 90 °, another foil gauge are radially arranged along pipeline；Second group is answered Become piece and the pipeline axial direction being connected with adapter tube is set, arrangement is two foil gauges along pipeline axial direction, and mutually in 90 ° Angle, another foil gauge is perpendicular to pipeline axis direction.
Further, the variation of voltage when the monitoring device is strained using 1/4 Wheatstone bridge test foil gauge, It is converted to obtain the strain of test specimen according to voltage change, then obtains the stress of elastic element, according to answering for elastic element The suffered active force of elastic element is calculated in power, and the Calculation of the force according to suffered by elastic element obtains the deformation state of element, Finally according to the stress of elastic element or deformation state, the parameters,acoustic of elastic element is obtained.
The utility model has the advantages that
The present invention can realize the on-line monitoring to the acoustic states of pipeline elastic element according to the deformation of foil gauge, And real-time display meets the requirement of equipment complete period monitoring.
Detailed description of the invention
Fig. 1 is integral layout schematic diagram of the invention；
Fig. 2 is schematic layout pattern of the foil gauge on flange；
Fig. 3 is schematic layout pattern of the foil gauge on pipeline；
Fig. 4 is Wheatstone bridge schematic diagram
Fig. 5 is the vertical stiffness of elastic element with load change curve
Wherein, 1- equipment, 2- vibration damping adapter tube, 3- flange, 4- pipeline, 5- foil gauge.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present invention provides a kind of pipeline elastic element acoustic states on-Line Monitor Device, which includes strain Piece, terminal box, data acquisition module, data processing module and indication control board；As shown in Fig. 1, equipment 1 is connect with vibration damping adapter tube 2, Vibration damping adapter tube 2 passes through flanged joint pipeline.
1) foil gauge is pasted:
For the point layout of the acoustic states monitoring of vibration damping adapter tube 22 positions, each position constitutes 1 by 3 foil gauges Group is by test specimen.Position is first is that vibration damping adapter tube outlet side flange is circumferential, to monitor the torsion stress of vibration damping adapter tube, judgement torsion sound State；Position is second is that the pipeline being connected with adapter tube is axial, to monitor the axially loaded of vibration damping adapter tube, the axial acoustics of judgement State.
As shown in Fig. 2, position one need to arrange 3 strain monolithics, arrangement be 2 monolithics along flange circumferentially, And mutually angle in 90 °, another foil gauge are radially arranged along pipeline；
As shown in Fig. 3, position two need to arrange 3 strain monolithics, and arrangement is 2 monolithics along pipeline axial direction, And mutual angle in 90 °, another foil gauge is perpendicular to pipeline axis direction.
It powers to electric bridge and measures output voltage:
This on-Line Monitor Device is tested using 1/4 Wheatstone bridge, as shown in Figure 4.The power supply of Wheatstone bridge bridge Voltage is E, output voltage e0For the potential difference at A, B.
Voltage change when test specimen strain occurs
One bridge arm of electric bridge accesses the test specimen of 3 pieces of foil gauges composition, and test specimen initial resistance is R1, pulling force, pressure or Under the effect of person's twisting resistance, test specimen circumferential and axial will generate strain.Other 3 bridge arms access fixed resistance, and pipeline stress occurs When variation, R1Resistance can change with it, it is assumed that resistance variations be Δ R1, therefore the output voltage changing value of electric bridge are as follows:
It is converted to obtain the strain of test specimen according to voltage change
Corresponding relationship between the resistance variations and strain of test specimen are as follows:
Wherein K is the sensitivity coefficient of foil gauge, therefore formula (3) becomes:
Therefore, there is the strain of foil gauge are as follows:
The stress of elastic element is obtained according to strain calculation
The stress of foil gauge are as follows:
σ=E ε (7)
E is pipeline elastic element elasticity modulus of materials, is transferred from elastic element associated parameter data library；σ is tested Stress suffered by part, ε are the strain that survey calculation obtains；
The suffered active force of elastic element is obtained according to the Stress calculation of elastic element
Active force suffered by elastic element are as follows:
S=σ A (8)
S is elastic element axial direction or distorting stress, and A is forced area.
The Calculation of the force according to suffered by elastic element obtains the deformation state of element
According to the stress of elastic element, deformation and stiffness relation, there is equation:
S=k (x) x (9)
Wherein k (x) is the rigidity of elastic element and the deformation relationship of original part, the deflection of x elastic element, using formula (9), Solution obtains the deflection of elastic element；
According to the stress or deformation state of elastic element, the parameters,acoustic of elastic element is obtained
Obtain the stress and deformation state of elastic element by stress-strain measurement, then according to the stress of element, The corresponding relationship of deformation state and acoustic states determines the acoustic states of elastic element.The corresponding relationship is by test result, emulation A series of law curves composition that calculated result obtains as shown in Fig. 5, is shown on middle control display screen.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention. All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (3)

1. a kind of pipeline elastic element acoustic states on-Line Monitor Device, which is characterized in that pipeline elastic element acoustic states exist Line monitoring device, the detection device include foil gauge, terminal box, data acquisition module, data processing module and indication control board；It is described Foil gauge is two groups, and two groups of foil gauges are arranged in two positions, and position is first is that vibration damping adapter tube outlet side flange is circumferential, to monitor The torsion stress of vibration damping adapter tube determines torsion acoustic states；Position subtracts second is that the pipeline axial direction being connected with adapter tube to monitor Shake the axially loaded taken over, and determines axial acoustic states；The stress section measurement obtains the strain at pipeline elastic element, passes through Terminal box is delivered to data acquisition module and data processing module, according to the processing of corresponding software for calculation, forms elastic element Acoustic states, and shown on display panel control.
2. acoustic states on-Line Monitor Device as described in claim 1, which is characterized in that every group of the foil gauge is three pieces, It is circumferential that the setting of first group of foil gauge in vibration damping takes over outlet side flange, two foil gauges along flange circumferentially, and mutually folder in 90 ° Angle, another foil gauge are radially arranged along pipeline；The pipeline axial direction being connected with adapter tube, arrangement side is arranged in second group of foil gauge Formula is two foil gauges along pipeline axial direction, and mutually angle in 90 °, another foil gauge is perpendicular to pipeline axis direction.
3. acoustic states on-Line Monitor Device as claimed in claim 1 or 2, which is characterized in that the monitoring device uses 1/4 The variation of voltage, converts to obtain answering for test specimen according to voltage change when Wheatstone bridge test foil gauge strains Become, then obtains the stress of elastic element, the suffered active force of elastic element is obtained according to the Stress calculation of elastic element, according to Calculation of the force suffered by elastic element obtains the deformation state of element, finally according to the stress of elastic element or deformation state, obtains To the parameters,acoustic of elastic element.
CN201811412876.1A 2018-11-23 2018-11-23 Online monitoring device for acoustic state of pipeline elastic element Active CN109520830B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110566471A (en) * 2019-07-19 2019-12-13 中国船舶重工集团公司第七一九研究所 portable pump acoustic performance acquisition method based on functional parameters
CN118706626A (en) * 2024-08-30 2024-09-27 溧阳得一新能源材料有限公司 Tensile testing machine with protect function

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