JPS5856949U - Strain control device in resonant fatigue testing machine - Google Patents
Strain control device in resonant fatigue testing machineInfo
- Publication number
- JPS5856949U JPS5856949U JP15164081U JP15164081U JPS5856949U JP S5856949 U JPS5856949 U JP S5856949U JP 15164081 U JP15164081 U JP 15164081U JP 15164081 U JP15164081 U JP 15164081U JP S5856949 U JPS5856949 U JP S5856949U
- Authority
- JP
- Japan
- Prior art keywords
- control device
- testing machine
- fatigue testing
- strain control
- test piece
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図11本考案の一実施例を示すブロック線図である。
1・・・・・・共振型疲労試験機、2・・・・・・基台
、3−−−−−− −おもり、4・・・・・・ロードセ
ル、5・・・・・・枠体、6・・・・・・ ゛試験片、
7・・・・・・平均荷重用ばね、8・・・・・・電磁石
、9・・・・・・ねじ棒、12・・・・・・電動機、1
4・・・・・・歪ゲー。
ジ、16・・・・・・移相器、17・・・・・・正帰還
減衰器、19・・・・・・振幅検出器、20・・・・・
・振幅設定器、22・・・・・・平均値検出器、23・
・・・・・平均値設定器。FIG. 11 is a block diagram showing an embodiment of the present invention. 1...Resonance type fatigue testing machine, 2...Base, 3------- -Weight, 4...Load cell, 5...Frame Body, 6... ゛Test piece,
7... Average load spring, 8... Electromagnet, 9... Threaded rod, 12... Electric motor, 1
4...Distortion game. 16... Phase shifter, 17... Positive feedback attenuator, 19... Amplitude detector, 20...
・Amplitude setter, 22...Average value detector, 23・
...Average value setter.
Claims (1)
の歪量が一定になるように制御する、共、 振型疲労試
験機にお、ける歪制御装置において、試験片歪出力を前
記振動系に定帰還する正帰還回路−と、試験片歪の振幅
値を制御する振幅値制御回路と、試験片歪の平均値を制
御する平均値制御回路とを設けたことを特徴とする共振
型疲労試験機にあける歪制御装置。In a strain control device in a vibration-type fatigue testing machine, which controls the strain amount of a test piece attached to a vibration system having a mass part and an elastic body to be constant, A resonant type characterized by having a positive feedback circuit that provides constant feedback to the system, an amplitude value control circuit that controls the amplitude value of test piece distortion, and an average value control circuit that controls the average value of test piece distortion. Strain control device installed in fatigue testing machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15164081U JPS5856949U (en) | 1981-10-14 | 1981-10-14 | Strain control device in resonant fatigue testing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15164081U JPS5856949U (en) | 1981-10-14 | 1981-10-14 | Strain control device in resonant fatigue testing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5856949U true JPS5856949U (en) | 1983-04-18 |
JPS6229948Y2 JPS6229948Y2 (en) | 1987-08-01 |
Family
ID=29944329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15164081U Granted JPS5856949U (en) | 1981-10-14 | 1981-10-14 | Strain control device in resonant fatigue testing machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5856949U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS617442A (en) * | 1984-06-21 | 1986-01-14 | Saginomiya Seisakusho Inc | Plastic strain controlling apparatus |
KR20150047523A (en) * | 2012-09-04 | 2015-05-04 | 터보메카 | High frequency method for determining the non-propagation threshold of fatigue cracks |
-
1981
- 1981-10-14 JP JP15164081U patent/JPS5856949U/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS617442A (en) * | 1984-06-21 | 1986-01-14 | Saginomiya Seisakusho Inc | Plastic strain controlling apparatus |
KR20150047523A (en) * | 2012-09-04 | 2015-05-04 | 터보메카 | High frequency method for determining the non-propagation threshold of fatigue cracks |
JP2015530570A (en) * | 2012-09-04 | 2015-10-15 | スネクマ | A method for determining the non-propagation threshold of fatigue cracks at high frequencies. |
Also Published As
Publication number | Publication date |
---|---|
JPS6229948Y2 (en) | 1987-08-01 |
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