JP2009085849A5 - - Google Patents
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- Publication number
- JP2009085849A5 JP2009085849A5 JP2007258006A JP2007258006A JP2009085849A5 JP 2009085849 A5 JP2009085849 A5 JP 2009085849A5 JP 2007258006 A JP2007258006 A JP 2007258006A JP 2007258006 A JP2007258006 A JP 2007258006A JP 2009085849 A5 JP2009085849 A5 JP 2009085849A5
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- speed
- servo motor
- deformation
- fatigue
- 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
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Claims (6)
前記繰り返し荷重の周期を変化させながら前記ワークの変形速度が所定の設定波形に従って変動するよう該ワークに繰り返し荷重を加える試験手段と、
前記ワークの変形速度を検出する速度検出手段と、
前記サーボモータを制御する制御手段と、
を備え、
前記制御手段は、前記速度検出手段が所定期間中に計測した変形速度の最大値に対する該最大値と前記設定速度との差分の割合に比例する大きさだけ前記サーボモータの回転軸の振幅を変化させることにより、該最大値と該設定速度との比が所定の範囲内に収まるように前記サーボモータを制御する、ことを特徴とする疲労試験装置。 A fatigue testing device that repeatedly applies a load to a workpiece by a servo motor,
And testing means for applying a load repeatedly to the workpiece to vary in accordance with the deformation rate is a predetermined set waveform of said workpiece while changing the period of the cyclic loading,
Speed detecting means for detecting the deformation speed of the workpiece,
Control means for controlling the servo motor;
Equipped with a,
The control means changes the amplitude of the rotation axis of the servo motor by an amount proportional to the ratio of the difference between the maximum value and the set speed with respect to the maximum value of the deformation speed measured by the speed detection means during a predetermined period. By controlling the servo motor, the servo motor is controlled so that the ratio between the maximum value and the set speed falls within a predetermined range .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007258006A JP4812725B2 (en) | 2007-10-01 | 2007-10-01 | Fatigue testing equipment |
| PCT/JP2008/067768 WO2009044747A1 (en) | 2007-10-01 | 2008-09-30 | Fatigue test device |
| TW97137659A TW200925598A (en) | 2007-10-01 | 2008-10-01 | Fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007258006A JP4812725B2 (en) | 2007-10-01 | 2007-10-01 | Fatigue testing equipment |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009085849A JP2009085849A (en) | 2009-04-23 |
| JP2009085849A5 true JP2009085849A5 (en) | 2010-01-28 |
| JP4812725B2 JP4812725B2 (en) | 2011-11-09 |
Family
ID=40659446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007258006A Active JP4812725B2 (en) | 2007-10-01 | 2007-10-01 | Fatigue testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4812725B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001074627A (en) * | 1999-09-01 | 2001-03-23 | Saginomiya Seisakusho Inc | Material-testing method and device |
| JP3749410B2 (en) * | 1999-12-09 | 2006-03-01 | 株式会社鷺宮製作所 | Test equipment |
| JP2002039931A (en) * | 2000-07-26 | 2002-02-06 | Shimadzu Corp | Materials testing machine |
| JP2002071506A (en) * | 2000-08-28 | 2002-03-08 | Akashi Corp | Vibration testing device |
| JP2006064668A (en) * | 2004-08-30 | 2006-03-09 | Toyota Motor Corp | Twist-testing machine and twist-testing method |
-
2007
- 2007-10-01 JP JP2007258006A patent/JP4812725B2/en active Active
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