JPS5856949U - Strain control device in resonant fatigue testing machine - Google Patents

Strain control device in resonant fatigue testing machine

Info

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
Application number
JP15164081U
Other languages
Japanese (ja)
Other versions
JPS6229948Y2 (en
Inventor
小野　靖朗
Original Assignee
株式会社東京衡機製造所
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 株式会社東京衡機製造所 filed Critical 株式会社東京衡機製造所
Priority to JP15164081U priority Critical patent/JPS5856949U/en
Publication of JPS5856949U publication Critical patent/JPS5856949U/en
Application granted granted Critical
Publication of JPS6229948Y2 publication Critical patent/JPS6229948Y2/ja
Granted legal-status Critical Current

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  • 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

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 質量部よび弾性体を有する振動系に取付けられた試験片
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.
JP15164081U 1981-10-14 1981-10-14 Strain control device in resonant fatigue testing machine Granted JPS5856949U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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