JPS55136931A - Hydraulic vibration testing apparatus - Google Patents
Hydraulic vibration testing apparatusInfo
- Publication number
- JPS55136931A JPS55136931A JP4561579A JP4561579A JPS55136931A JP S55136931 A JPS55136931 A JP S55136931A JP 4561579 A JP4561579 A JP 4561579A JP 4561579 A JP4561579 A JP 4561579A JP S55136931 A JPS55136931 A JP S55136931A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- resonance frequency
- testing apparatus
- vibration testing
- actuator
- 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.)
- Pending
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
PURPOSE: To form an operating range locally effective in high frequency range in a hydraulic vibration testing apparatus by providing a hollow portion imparted with elasticity at least partialy of the rod of an actuator.
CONSTITUTION: A hydraulic vibration testing apparatus is frequently used in low frequency range. When the transmitting force generally exceeds the resonance frequency fn of the apparatus, it is not transmitted inversely proportionally to the square of the number of vibrations. Therefore, the resonance frequency fn becomes the upper limit of the operating frequency of the apparatus. When a hollow portion 6 is so formed at the rod 3 of the actuator A as not to lose its strength to thereby impart the elasticity partially to the rod 3, the resonance characteristics of the actuator A can be deformed as shown by a curve 7. Thus, in addition to the original resonance frequency fn, the resonance frequency f'n is created in the higher frequency range than the resonance frequency fn. Therefore, this portion can be formed as operating range effective for the high frequency.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4561579A JPS55136931A (en) | 1979-04-13 | 1979-04-13 | Hydraulic vibration testing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4561579A JPS55136931A (en) | 1979-04-13 | 1979-04-13 | Hydraulic vibration testing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55136931A true JPS55136931A (en) | 1980-10-25 |
Family
ID=12724275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4561579A Pending JPS55136931A (en) | 1979-04-13 | 1979-04-13 | Hydraulic vibration testing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55136931A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009181054A (en) * | 2008-01-31 | 2009-08-13 | Takenaka Komuten Co Ltd | Vibration feeling device |
CN106596002A (en) * | 2016-12-14 | 2017-04-26 | 东南大学 | High-speed railway steel truss arch bridge vehicle-bridge resonance curve measuring method |
-
1979
- 1979-04-13 JP JP4561579A patent/JPS55136931A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009181054A (en) * | 2008-01-31 | 2009-08-13 | Takenaka Komuten Co Ltd | Vibration feeling device |
CN106596002A (en) * | 2016-12-14 | 2017-04-26 | 东南大学 | High-speed railway steel truss arch bridge vehicle-bridge resonance curve measuring method |
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