JPS5523450A - Method and device for instrumentation of vibration characteristic of mechanical structure body - Google Patents
Method and device for instrumentation of vibration characteristic of mechanical structure bodyInfo
- Publication number
- JPS5523450A JPS5523450A JP9618978A JP9618978A JPS5523450A JP S5523450 A JPS5523450 A JP S5523450A JP 9618978 A JP9618978 A JP 9618978A JP 9618978 A JP9618978 A JP 9618978A JP S5523450 A JPS5523450 A JP S5523450A
- Authority
- JP
- Japan
- Prior art keywords
- force
- percussion
- acceleration
- detector
- structure body
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE: To improve measurement precision of vibration characteristics of a mechanical-structure body by obtaining a real percussion force signal by deducting signal force that additional mall fitted previous to the force detector of a percussion unit affects a percussion force signal.
CONSTITUTION: Percussion unit 5 percusses structure body 2 and three outputs, force F1 from force detector 3, acceleration (α) from acceleration detector 12 and vibration acceleration (β) from vibration response detector 1 at this time, are simultaneously inputted to percussion force calculation unit 13, where additional mass M fitted previous to force detector 3 is multiplied by acceleration (α) and force F1 is substracted by the result to obtain real percussion force F. In addition, vibration characteristics such as a frequency response, coherence function and transfer function can be obtained by processor 15 from percussion force F and vibration acceleration (β). In this way, the measurement precision of vibration characteristics of structure body 2 can be improved by an accurate percussion force signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9618978A JPS5523450A (en) | 1978-08-09 | 1978-08-09 | Method and device for instrumentation of vibration characteristic of mechanical structure body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9618978A JPS5523450A (en) | 1978-08-09 | 1978-08-09 | Method and device for instrumentation of vibration characteristic of mechanical structure body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5523450A true JPS5523450A (en) | 1980-02-19 |
JPS5719368B2 JPS5719368B2 (en) | 1982-04-22 |
Family
ID=14158352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9618978A Granted JPS5523450A (en) | 1978-08-09 | 1978-08-09 | Method and device for instrumentation of vibration characteristic of mechanical structure body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5523450A (en) |
-
1978
- 1978-08-09 JP JP9618978A patent/JPS5523450A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5719368B2 (en) | 1982-04-22 |
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