SU1562752A1 - Method of fatigue testing of samples in symmetric twisting - Google Patents
Method of fatigue testing of samples in symmetric twisting Download PDFInfo
- Publication number
- SU1562752A1 SU1562752A1 SU884463879A SU4463879A SU1562752A1 SU 1562752 A1 SU1562752 A1 SU 1562752A1 SU 884463879 A SU884463879 A SU 884463879A SU 4463879 A SU4463879 A SU 4463879A SU 1562752 A1 SU1562752 A1 SU 1562752A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sample
- fatigue testing
- samples
- symmetric
- vibration exciter
- Prior art date
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Изобретение относитс к способам усталостных испытаний при кручении. Цель изобретени - повышение точности за счет снижени чувствительности амплитуды нагрузки к нестабильности скорости вращени вала вибровозбудител . Образец 5 устанавливают в захватах 7, которые жестко св заны с инерционными массами 3 и 6. Масса 3 св зана с дебалансным вибровозбудителем и посредством упругой св зи с основанием. Параметры стенда и угловую скорость ω нагружени выбирают из услови ω2 = 2C1C0/[(I1 + I2)C0 + I2C1], где C0 и C1 - жесткости соответственно образца и св зи, а I1 и I2 - моменты инерции соответствующих инерционных дисков. 3 ил.This invention relates to torsional fatigue testing methods. The purpose of the invention is to improve the accuracy by reducing the sensitivity of the load amplitude to the instability of the rotational speed of the shaft of the vibration exciter. Sample 5 is installed in grippers 7, which are rigidly connected to inertial masses 3 and 6. Mass 3 is associated with an unbalanced vibration exciter and by means of elastic coupling with the base. The parameters of the test bench and the angular velocity ω of loading are chosen from the condition ω 2 = 2C 1 C 0 / [(I 1 + I 2 ) C 0 + I 2 C 1 ], where C 0 and C 1 are the rigidity of the sample and the connection, respectively I 1 and I 2 - the moments of inertia of the corresponding inertial disks. 3 il.
Description
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Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884463879A SU1562752A1 (en) | 1988-07-21 | 1988-07-21 | Method of fatigue testing of samples in symmetric twisting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884463879A SU1562752A1 (en) | 1988-07-21 | 1988-07-21 | Method of fatigue testing of samples in symmetric twisting |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1562752A1 true SU1562752A1 (en) | 1990-05-07 |
Family
ID=21391217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU884463879A SU1562752A1 (en) | 1988-07-21 | 1988-07-21 | Method of fatigue testing of samples in symmetric twisting |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1562752A1 (en) |
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1988
- 1988-07-21 SU SU884463879A patent/SU1562752A1/en active
Non-Patent Citations (1)
Title |
---|
Серенсен С.В., ГарфМ.Э., Кузъ- менко В.А. Динамика машин дл испытани на усталость. - .: Машиностроение, 1967, с. 43, рис, 2.17. * |
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