Apparatus for and methods of stress testing metal components
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-029/11
G01N-029/04
출원번호
US-0527908
(2003-09-22)
등록번호
US-7263886
(2007-09-04)
우선권정보
NZ-521541(2002-09-20)
국제출원번호
PCT/NZ03/000216
(2003-09-22)
§371/§102 date
20050314
(20050314)
국제공개번호
WO04/026659
(2004-04-01)
발명자
/ 주소
Jury,Brent Felix
출원인 / 주소
Jury,Brent Felix
대리인 / 주소
Bio Intellectual Property Services (Bio IPS) LLC
인용정보
피인용 횟수 :
9인용 특허 :
12
초록▼
A tuning device (23) and an apparatus that incorporates the tuning device (23) for use in testing the integrity of a railway line (30) to obtain an improved test signal, the tuning device (23) including an elongate member (23) adapted to be attachable at one end of the railway line (30) being tested
A tuning device (23) and an apparatus that incorporates the tuning device (23) for use in testing the integrity of a railway line (30) to obtain an improved test signal, the tuning device (23) including an elongate member (23) adapted to be attachable at one end of the railway line (30) being tested in situ or is attachable to an attachment member (21) coupled to the section (10) of railway line (30), and wherein a vibration signal measuring means (24) is adapted to be secured to the other end of the elongate member (23). The apparatus can include a control means (2), a vibration means (3), the tuning device (23) configured and arranged to be attachable to the railway line (30) and a vibration measuring means (24) is attachable to the railway line (3) to directly vibrate the section (10) of the railway line (30), the control means (2) controlling the frequency of vibration and to receive and process measurements of the amplitude of vibration from the tuning device (23) and the frequency of vibration from the vibration measuring means (24).
대표청구항▼
The invention claimed is: 1. A tuning device for use in testing the integrity of a railway line to obtain a vibration test signal, the tuning device including an elongate member adapted to be attachable at one end to the railway line being tested in situ or is attachable to an attachment member cou
The invention claimed is: 1. A tuning device for use in testing the integrity of a railway line to obtain a vibration test signal, the tuning device including an elongate member adapted to be attachable at one end to the railway line being tested in situ or is attachable to an attachment member coupled to the section of a said railway line so as to allow, in use, the other end of the elongate member to extend freely therefrom, the elongate member being made of a non-brittle and elastic material suitable for enabling a vibration signal measuring means to be securable to the elongate member, in use, so as to measure the vibration signals on the said railway line. 2. A tuning device in accordance with claim 1 wherein the vibration signal measuring means is a transducer means. 3. A tuning device in accordance with claim 2 wherein the transducer means is an accelerometer. 4. A tuning device in accordance with claim 1 wherein the elongate member is made of mild steel. 5. A tuning device in accordance with claim 1 wherein the elongated member is made of a non-brittle, high tensile, material that has sufficient elasticity and ductility. 6. A tuning device according to claim 1 wherein the one end of the elongate member is fastenable to an attachment member, and wherein the attachment member is a block of metal, in use, that is releasably clampable to the head of a railway line. 7. A tuning device according to claim 1 wherein the attachment member is an L shaped block of metal adapted to be releasably clampable to the head of a railway line. 8. A tuning device according to claim 1 wherein a dampening means is secured to the elongate member adjacent the vibration signal measuring means to allow for the tuning frequency of the tuning device to be set. 9. A tuning device according to claim 1 wherein the dampening means is tubular and is provided with a hollow central section, and wherein a dampening material is provided within the hollowed central section. 10. A tuning device according to claim 1 wherein the elongate member is substantially about 13.5 centimeters between an attachment point on the railway line or attachment member and the vibration signal measuring means, and the elongate member is substantially about 16 millimeters in width and about 3 millimeters in thickness, and wherein the tuning device is tuned to measure frequencies at about 80 Hertz. 11. An apparatus for testing the integrity of a section of railway line, the apparatus including a control means, a vibration means, a tuning device including an elongate member adapted to be attachable at one end to the railway line being tested in situ or is attachable to an attachment member that is in turn coupled to the section of a said railway line so as to allow, in use, the other end to extend freely therefrom, the elongate member being made of a non-brittle and elastic material suitable for enabling a vibration signal measuring means to be secured to the elongate member, in use, so as to measure vibration signals on the said railway line and the vibration signal measuring means, the vibration means being associated with a said section of railway line, in use, to directly vibrate the section of railway line, the control means controlling the frequency of vibration and to receive and process measurements of the amplitude of vibration from the vibration signal measuring means of the tuning device and the frequency of vibration from the vibration means. 12. An apparatus according to claim 11 further including a temperature measurement means attachable to the said section of railway line to provide a temperature signal to the control means. 13. An apparatus according to claim 11 wherein the vibration means is a motor having eccentric weights mounted about the motor shaft, and wherein the vibration measurement means is a tachometer mounted to the shaft of the motor. 14. An apparatus according to either claim 11 or claim 12 wherein the distance between the tuning device and the vibration means is between about 60 to 70 centimeters. 15. A system of testing the integrity of a section of railway line, the system including an apparatus having a control means, a vibration means, and a tuning device, the tuning device comprising an elongate member adapted to be attachable at one end to the railway line being tested in situ or is attachable to an attachment member that is in turn coupled to the section of a said railway line so as to allow, in use, the other end to extend freely therefrom and being substantially in parallel to the said railway line, the elongate member being made of a non-brittle and elastic material suitable for enabling a vibration signal measuring means to be secured to the elongate member, in use, so as to measure vibration signals on the said railway line, and the vibration signal measuring means, the vibration means being associated with a said section of railway line, in use, to directly vibrate the section of railway line, the control means controlling the frequency of vibration and to receive and process measurements of the amplitude of vibration from the vibration signal measuring means of the tuning device and the frequency of vibration from the vibration means, the apparatus being set up on a section of railway line running over five consecutive railway sleepers aligned transversely under the railway line, the vibration means, in use, being coupled to the railway line adjacent the second sleeper and an accelerometer or the tuning device being attachable to the section of railway line adjacent the fourth sleeper, and wherein the distance between the vibration means and the accelerometer or the tuning device is between about 60 to 75 centimeters. 16. A system according to claim 15 wherein the second, third and fourth sleepers are unclipped from the railway line and packing members are placed between the top of the second and fourth sleepers and the underside of the railway line respectively to form an air gap between the third sleeper and the underside of the railway line.
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