Method of recording a vibration isolation system

• US 6,816,800 B2
• Filed: 08/02/2002
• Issued: 11/09/2004
• Est. Priority Date: 08/03/2001
• Status: Active Grant

• Current Assignee: Integrated Dynamics Engineering GmbH (Aalberts NV)
• Original Assignee: Peter Heiland
• Inventors: Heiland, Peter
• Primary Examiner(s): Barlow, John
• Assistant Examiner(s): LE, JOHN H
• Application Number:
  US10/211,752
• Publication Number:
  US 20030050716A1
• Time in Patent Office: 830 Days
• Field of Search: 702/33, 702/54, 702/109, 160/310, 181/120, 188/378, 244/17, 244/27, 244/54, 219/121.69, 318/649, 331/17, 356/614, 360/265.7, 600/459
• US Class Current: 702/109
• CPC Class Codes: F16F 15/02 Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems F16F15/005 takes precedence ; layered products B32B; suppression of vibration in ships B63; relieving load on bearings, using magnetic means F16C39/06

Abstract

In relation to a vibration isolation system, which comprises at least one vibration isolation device that can be assigned to an isolation element, the fact that a method of recording the system with the aid of a closed-loop and/or open-loop control device is provided, in which a closed-loop and/or open-loop control structure can be predefined and in which signals and/or variables related to the isolation system are picked up, processed and/or provided, and in which, on the basis of the definable structures and variables, at least one isolation system characteristic data set for assessing the vibration isolation system is formed, means that for the first time the indicative fundamentals for an open system for evaluation, closed-loop and open-loop control are provided.

Claims

1. A method of recording a vibration isolation system having at least one vibration isolation device that can be assigned to an isolation element, the vibration isolation system being assigned a at least one of a closed-loop and open-loop control device, including the following steps:

a) providing at least one of a closed-loop and open-loop control structure

b) picking up and processing at least one of signals and variables related to the isolation system by exciting the vibration isolation system into vibration,

c) forming at least one isolation system characteristic reference fingerprint data set on the basis of the control structure and the recorded variables for assessing the vibration isolation system,

d) recording and forming an actual fingerprint data set,

e) comparing at least part of the reference fingerprint with at least part of the actual fingerprint,

f) assessing the state of the vibration isolation system on the basis of specific deviations between the reference and the actual fingerprint.

2. The method as claimed in claim 1, wherein the method comprises the configuration of the closed-loop and open-loop control structure.

3. The method as claimed in claim 1, wherein the method comprises the provision of control loops and types of control in the closed-loop and open-loop control structure.

4. The method as claimed in claim 1, wherein the method includes the selection between at least one of feedback, feed forward control and adaptive control in the closed-loop and open-loop structure.

5. The method as claimed in claim 1, wherein the method comprises the definition of at lest one of acceleration-determined, speed-determined and position-determined control loops in the closed-loop and open-loop control structure.

6. The method as claimed in claim 1, wherein the method comprises the configuration of the closed-loop and open-loop control structure and the provision of closed-loop and open-loop control variables in the closed-loop and open-loop control structure.

7. The method as claimed in claim 1, wherein the method comprises the definition of actuator-specific and sensor-specific variables in the closed-loop and open-loop control structure.

8. The method as claimed in claim 1, wherein the method comprises the timing of the control loops.

9. The method as claimed in claim 1, wherein the method comprises the step of closed-loop and open-loop control of the vibration isolation system, with the aid of at least one of the variables, signals and the isolation system characteristic data set.

10. The method as claimed in claim 1, wherein the method comprises the provision and adaptation of interfaces between the vibration isolation system and the closed-loop and open-loop control device and external equipment.

11. The method as claimed in claim 1, wherein the method includes the provision of interfaces for at least one of feeding and picking off external or internal signals.

12. The method as claimed in claim 1, wherein the method includes the monitoring and control of the interfaces.

13. The method as claimed in claim 1, wherein the method comprises the recording of data sets.

14. The method as claimed in claim 1, wherein the method includes the testing of the closed-loop and open-loop control structure.

15. The method as claimed in claim 1, wherein the method comprises the provision of at least one of external and internal excitation signals.

16. The method as claimed in claim 1, wherein the method comprises the configuration of the excitation signal provision.

17. The method as claimed in claim 1, wherein the method comprises monitoring the method steps.

18. The method as claimed in claim 1, wherein the method includes at least one of picking up and determining data with reference to vibration-isolation-specific functional relationships.

19. The method as claimed in claim 1, wherein the method comprises at least one of picking up and determining data that can be assigned to a power spectrum.

20. The method as claimed in claim 1, wherein the method comprises at least one or picking up and determining data that can be assigned to a transfer function.

21. The method as claimed in claim 1, wherein the method comprises at least one of picking up and determining data that can be assigned to a vibration coherence function.

22. The method as claimed in claim 1, wherein the method comprises at least one of picking up and determining data that can be assigned to a vibration phase function.

23. The method as claimed in claim 1, wherein the method comprises at least one of picking up and determining of the data for all the vibratory degrees of freedom envisaged.

24. The method as claimed in claim 1, wherein the method comprises the production of vibration tolerance bands.

25. The method as claimed in claim 1, wherein the method comprises the dynamic recording of fingerprint data sets.

26. The method as claimed in claim 1, wherein the method comprises the simulation of the vibration isolation system.

27. The method as claimed in claim 1, wherein the simulation comprises the excitation of vibrations of the vibration isolation system.

28. The method as claimed in claim 1, wherein the method comprises the assignment of fingerprints or data sets to fault messages.

29. The method as claimed in claim 1, wherein the method includes the diagnosis of the vibration isolation system.

30. The method as claimed in claim 1, wherein the method includes the visualization of at least one of the variables, the data and the relationships.

31. A computer program having program code means for carrying out a method as claimed in claim 1, when the program is executed on a computer.

32. The computer program as claimed in claim 31, wherein the computer program comprises a plurality of program modules.

33. The computer program as claimed in claim 31, wherein the computer program comprises a controller-specific program module for the closed-loop and open-loop control of the vibration isolation system.

34. The computer program as claimed in claim 31, wherein the controller module includes diagnostic capabilities relating to the vibration isolation system.

35. The computer program as claimed in claim 31, wherein the controller module is designed to generate and feed excitation signals into the controller.

36. The computer program as claimed in claim 31, wherein the controller module comprises a command-driven interface.

37. The computer program as claimed in claim 31, wherein the computer program comprises user-related function modules, for at least one of communication with and control of the controller module and of the controller.

38. The computer program as claimed in claim 31, wherein the function modules include program tools for at least one of installation, visualization diagnosis and control loop tuning and controller function monitoring.

39. A system for recording a vibration isolation system, which comprises a computer program as claimed in claim 31.

40. An apparatus, for carrying out a method as claimed in claim 1 for executing a computer program that comprises a plurality of program modules, comprising:

a vibration isolation device, on which an isolation element can be arranged, which comprises

one or more components, comprising of at least one of sensors and actuators, arranged for vibration-isolating operation, which cooperate with a closed-loop and open-loop control device in such a way that at least one fingerprint data set that is characteristic of the vibration isolation system can be provided,

means of comparing at least part of a reference fingerprint with an actual fingerprint,

means of assessing the state of the vibration isolation system on the basis of specific deviations between the reference and the actual fingerprint.

41. The apparatus as claimed in claim 40, wherein the closed-loop and open-loop control device is of modular design.

42. The apparatus as claimed in claim 40, wherein the closed-loop and open-loop control device comprises at least one of a controller unit and user-oriented function units.

43. The apparatus as claimed in claim 40, wherein the function units include units for at least one of installation, visualization and diagnosis and/or control loop tuning and/or controller function monitoring.

44. A system for recording a vibration isolation system, which comprises an apparatus as claimed in claim 40.

45. A system for recording a vibration isolation system, which comprises a method as claimed in claim 1.