JPS6338040U - - Google Patents
Info
- Publication number
- JPS6338040U JPS6338040U JP13147286U JP13147286U JPS6338040U JP S6338040 U JPS6338040 U JP S6338040U JP 13147286 U JP13147286 U JP 13147286U JP 13147286 U JP13147286 U JP 13147286U JP S6338040 U JPS6338040 U JP S6338040U
- Authority
- JP
- Japan
- Prior art keywords
- phase
- waveform
- phase difference
- reference waveform
- testing device
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
第１図は本考案の１実施例の構成を示す図、第
２図は従来装置の構成を示す図、第３図は従来装
置の問題点を説明する図である。
１６……基準波形発生装置、１７，１８，１９
……波形発生装置（位相演算回路内蔵）、２１，
２２，２３……位相差検出回路。
FIG. 1 is a diagram showing the configuration of one embodiment of the present invention, FIG. 2 is a diagram showing the configuration of a conventional device, and FIG. 3 is a diagram illustrating problems with the conventional device. 16...Reference waveform generator, 17, 18, 19
...Waveform generator (with built-in phase calculation circuit), 21,
22, 23...Phase difference detection circuit.
Claims (1)
る複数のジヤツキと、これら複数のジヤツキにそ
れぞれ所定の設定位相をもつ負荷パターン波形を
与える波形発生装置とを備え、複数のジヤツキに
より被試験体に負荷を与えて疲労破壊試験等の試
験を行なう油圧式多負荷試験装置において、位相
零の基準波形を出力する基準波形発生回路と、該
基準波形発生回路から出力される基準波形と各ジ
ヤツキのサーボ系におけるフイードバツク信号と
が入力し、基準波形に対するフイードバツク信号
の位相差を検出する位相差検出回路と、該位相差
検出回路によつて検出されたフイードバツク信号
の位相差と波形発生装置において設定した設定位
相の基準波形に対する位相差とを比較演算し、両
者が一致するように設定位相を補正する位相演算
回路とを設けたことを特徴とする油圧式多負荷試
験装置。 It is equipped with a plurality of jacks consisting of hydraulic actuators using servo valves, and a waveform generator that gives each of these jacks a load pattern waveform with a predetermined set phase. In a hydraulic multi-load testing device that performs tests such as fatigue fracture tests, there is a reference waveform generation circuit that outputs a reference waveform with zero phase, and a feedback between the reference waveform output from the reference waveform generation circuit and the servo system of each jack. A phase difference detection circuit receives a signal and detects the phase difference of the feedback signal with respect to a reference waveform, and the phase difference of the feedback signal detected by the phase difference detection circuit and the standard of the set phase set in the waveform generator. 1. A hydraulic multi-load testing device comprising a phase calculation circuit that compares and calculates a phase difference with respect to a waveform and corrects a set phase so that the two match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13147286U JPH0545960Y2 (en) | 1986-08-28 | 1986-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13147286U JPH0545960Y2 (en) | 1986-08-28 | 1986-08-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6338040U true JPS6338040U (en) | 1988-03-11 |
| JPH0545960Y2 JPH0545960Y2 (en) | 1993-11-30 |
Family
ID=31029948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13147286U Expired - Lifetime JPH0545960Y2 (en) | 1986-08-28 | 1986-08-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545960Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013242272A (en) * | 2012-05-22 | 2013-12-05 | Saginomiya Seisakusho Inc | Testing device and control method of testing device |
-
1986
- 1986-08-28 JP JP13147286U patent/JPH0545960Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013242272A (en) * | 2012-05-22 | 2013-12-05 | Saginomiya Seisakusho Inc | Testing device and control method of testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0545960Y2 (en) | 1993-11-30 |