WO1997025852A3 - Ultrasound method for measuring the characteristics of stress-deformed bolt and pin joints - Google Patents

Ultrasound method for measuring the characteristics of stress-deformed bolt and pin joints Download PDF

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Publication number
WO1997025852A3
WO1997025852A3 PCT/RU1997/000081 RU9700081W WO9725852A3 WO 1997025852 A3 WO1997025852 A3 WO 1997025852A3 RU 9700081 W RU9700081 W RU 9700081W WO 9725852 A3 WO9725852 A3 WO 9725852A3
Authority
WO
WIPO (PCT)
Prior art keywords
stress
joint
bolt
oscillations
measuring
Prior art date
Application number
PCT/RU1997/000081
Other languages
French (fr)
Russian (ru)
Other versions
WO1997025852A2 (en
Inventor
Valery Timofeevich Vlasov
Boris Nikitich Marin
Antoly Olegovich Churgel
Original Assignee
Yalestown Corp Nv
Valery Timofeevich Vlasov
Boris Nikitich Marin
Antoly Olegovich Churgel
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 Yalestown Corp Nv, Valery Timofeevich Vlasov, Boris Nikitich Marin, Antoly Olegovich Churgel filed Critical Yalestown Corp Nv
Priority to AU23122/97A priority Critical patent/AU2312297A/en
Publication of WO1997025852A2 publication Critical patent/WO1997025852A2/en
Publication of WO1997025852A3 publication Critical patent/WO1997025852A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
    • G01L5/246—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed using acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/25—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons
    • G01L1/255—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons using acoustic waves, or acoustic emission
    • 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
    • G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/227—Details, e.g. general constructional or apparatus details related to high pressure, tension or stress conditions
    • 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
    • G01N2291/024—Mixtures
    • G01N2291/02491—Materials with nonlinear acoustic properties
    • 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
    • G01N2291/028—Material parameters
    • G01N2291/02827—Elastic parameters, strength or force
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0421—Longitudinal waves
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0422—Shear waves, transverse waves, horizontally polarised waves
    • 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
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects
    • G01N2291/2691—Bolts, screws, heads

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Toxicology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The invention relates to non-destructive diagnostic methods for materials and structures and can be used for measuring the stress-strain state of bolt and pin screw joints in the construction, assembly and operation of structures. Two stress-strain state characteristics are determined, namely stress and relative strain, for a wide range of loads, to the point of destruction. Any defects in the form of stress-fatigue cracks arising when the bolt or pin joints are tightened are detected. Continuous longitudinal and transverse ultrasound wave oscillations are generated in the joint under investigation, either simultaneously or one after the other, before and after tightening; ultrasound oscillations passing through the joint are picked up, the resonance frequencies of these waves are measured and the ratio of the two is used to determine the mechanical stress σ and relative strain ε. The oscillations are also monitored for non-linear distortions which when present indicate the presence of defects in the joint.
PCT/RU1997/000081 1996-10-17 1997-03-26 Ultrasound method for measuring the characteristics of stress-deformed bolt and pin joints WO1997025852A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU23122/97A AU2312297A (en) 1996-10-17 1997-03-26 Ultrasound method for measuring the characteristics of stress-deformed bolt and pin joints

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU96120103 1996-10-17
RU96120103A RU2099698C1 (en) 1996-10-17 1996-10-17 Ultrasonic method measuring characteristics of stressed-deformed state of bolted and studded joints

Publications (2)

Publication Number Publication Date
WO1997025852A2 WO1997025852A2 (en) 1997-07-24
WO1997025852A3 true WO1997025852A3 (en) 1997-09-04

Family

ID=20186348

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU1997/000081 WO1997025852A2 (en) 1996-10-17 1997-03-26 Ultrasound method for measuring the characteristics of stress-deformed bolt and pin joints

Country Status (3)

Country Link
AU (1) AU2312297A (en)
RU (1) RU2099698C1 (en)
WO (1) WO1997025852A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5829680B2 (en) * 2011-04-20 2015-12-09 株式会社日立メディコ Ultrasonic imaging device
CN102865952B (en) * 2012-09-13 2014-11-12 许锡宾 Nondestructive testing method for working stress of concrete
CN102865954A (en) * 2012-10-10 2013-01-09 北京理工大学 Transverse and longitudinal ultrasonic sensor for detecting axial pre-stress of bolt
CN103076124B (en) * 2012-12-30 2014-12-17 吉林省天合风电设备有限公司 Method for measuring service bolt axial force with sound velocity rate regression method
CN110207884B (en) * 2019-07-10 2020-09-29 成都大汇智联科技有限公司 System and method for monitoring pretightening force of key bolt of water turbine on line
CN111947825A (en) * 2020-08-10 2020-11-17 河南九域恩湃电力技术有限公司 Stress detection system for fastening bolt of power transmission line iron tower

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014208A (en) * 1976-04-01 1977-03-29 Rockwell International Corporation Ultrasonic system for measuring dimensional or stress change in structural member
SU954820A1 (en) * 1981-03-03 1982-08-30 Предприятие П/Я М-5953 Device for ultrasonic checking of threaded joint tightening force
GB2109555A (en) * 1981-11-16 1983-06-02 Raymond Engineering Ultrasonic testing method and apparatus
EP0106580A2 (en) * 1982-10-06 1984-04-25 The Welding Institute Acoustic detection of defects in structures
RU2025727C1 (en) * 1992-08-13 1994-12-30 Акционерное общество "Всероссийский институт легких сплавов" Method of determination of normal anisotropy sheet rolled stock

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014208A (en) * 1976-04-01 1977-03-29 Rockwell International Corporation Ultrasonic system for measuring dimensional or stress change in structural member
SU954820A1 (en) * 1981-03-03 1982-08-30 Предприятие П/Я М-5953 Device for ultrasonic checking of threaded joint tightening force
GB2109555A (en) * 1981-11-16 1983-06-02 Raymond Engineering Ultrasonic testing method and apparatus
EP0106580A2 (en) * 1982-10-06 1984-04-25 The Welding Institute Acoustic detection of defects in structures
RU2025727C1 (en) * 1992-08-13 1994-12-30 Акционерное общество "Всероссийский институт легких сплавов" Method of determination of normal anisotropy sheet rolled stock

Also Published As

Publication number Publication date
WO1997025852A2 (en) 1997-07-24
AU2312297A (en) 1997-08-11
RU2099698C1 (en) 1997-12-20

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