System and method for performing modal analysis of at least one remote structure

• US 20040093191A1
• Filed: 11/12/2002
• Published: 05/13/2004
• Est. Priority Date: 11/12/2002
• Status: Abandoned Application

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Jeppsson, Jan, Xu, Liangji
• Application Number:
  US10/292,041
• Publication Number:
  US 20040093191A1
• Time in Patent Office: Days
• US Class Current: 703/1
• CPC Class Codes: G01N 29/12 by measuring frequency or resonance of acoustic waves measuring frequency or resonant frequency of mechanical vibrations or acoustic waves in general G01H1/06, G01H3/04, G01H13/00; acoustic resonators G10K11/04; vibration or shock testing of structures G01M7/00
• CPC Class Codes: G01N 29/14 using acoustic emission techniques echo of particles G01N29/046; measuring mechanical vibrations or acoustic waves in solids in general G01H1/00
• CPC Class Codes: G06F 2111/02 CAD in a network environment, e.g. collaborative CAD or distributed simulation
• CPC Class Codes: G06F 30/00 Computer-aided design [CAD]

Abstract

A system and method are provided for performing a modal analysis of at least one structure across a wide area network (WAN). The system includes at least one data acquisition assembly and at least one central processing element. The data acquisition assemblies are capable of acquiring data from the structure, where the data comprises an input force measurement and a response measurement. The data acquisition assemblies are also capable of transmitting the data across the WAN. In turn, the central processing elements can receive the data and thereafter perform a modal analysis of the structure based upon the data.

Claims

1. A system for performing a modal analysis of at least one structure across a wide area network (WAN), said system comprising:

at least one data acquisition assembly capable of acquiring data from the at least one structure, wherein the data comprises an input force measurement and a response measurement, and wherein the at least one data acquisition assembly is capable of transmitting the data across the WAN; and

at least one central processing element, remote from the at least one data acquisition assembly, capable of receiving the data from the WAN and thereafter performing a modal analysis of the at least one structure based upon the data.

2. A system according to claim 1, wherein the WAN comprises the Internet.

3. A system according to claim 1, wherein each data acquisition assembly is capable of imparting a force on the at least one structure and thereafter measuring the input force on the at least one structure and a response of the at least one structure to the input force.

4. A system according to claim 3, wherein each data acquisition assembly comprises:

a force excitation element capable of imparting the force on the at least one structure;

a force sensor capable of measuring the input force on the at least one structure;

an accelerometer capable of measuring the response of the at least one structure to the input force; and

a client processing element capable of receiving the input force measurement and the response measurement and thereafter transmitting the data across the WAN to the at least one central processing element.

5. A system according to claim 1, wherein the at least one central processing element is capable of receiving the data and thereafter determining a frequency response function (FRF) for the structure based upon the data.

6. A system according to claim 5 further comprising at least one display, wherein the at least one central processing element is capable of driving the at least one display to present at least one of the FRF, the force input measurement and the accelerator response measurement.

7. A method of performing a modal analysis of at least one structure remotely located, said method comprising:

acquiring data from the at least one structure, wherein the data comprises an input force measurement and a response measurement;

transmitting the data across the WAN;

receiving the data from the WAN at a location remote from the at least one structure; and

performing a modal analysis of the at least one structure based upon the data.

8. A method according to claim 7, wherein transmitting the data comprises transmitting the data across the Internet.

9. A method according to claim 7, wherein acquiring data comprises:

imparting a force on the at least one structure; and

measuring the input force on the at least one structure and a response of the at least one structure to the input force.

10. A method according to claim 7, wherein performing a modal analysis includes determining a frequency response function (FRF) for the structure based upon the data.

11. A system according to claim 10 further comprising driving a display to present at least one of the FRF, the force input measurement and the accelerator response measurement.

12. A system for performing a modal analysis of at least one structure across a wide area network (WAN), said system comprising at least one data acquisition assembly, wherein each data acquisition assembly comprises:

a force excitation element capable of imparting the force on the at least one structure;

a force sensor capable of measuring the input force on the at least one structure;

an accelerometer capable of measuring a response of the at least one structure to the input force; and

a client processing element capable of receiving the input force measurement and the response measurement, wherein said client processing element is capable of packaging the measurements along with an identifier identifying an originating location of the data and thereafter transmitting the packaged data across the WAN to at least one central processing element located remote from the data acquisition assembly to permit the at least one central processing element to perform the modal analysis based upon the data.

13. A system according to claim 12, wherein the WAN comprises the Internet.

14. A system according to claim 12 further comprising the at least one central processing element, wherein the at least one central processing element is capable of receiving the data and thereafter determining a frequency response function (FRF) for the structure based upon the data.

15. A system according to claim 14 further comprising at least one display, wherein the at least one central processing element is capable of driving the display to present at least one of the FRF, the input force measurement and the accelerator response measurement.

16. A system for performing a modal analysis of at least one structure across a wide area network (WAN), said system comprising:

at least one central processing element capable of receiving packaged data transmitted across the WAN, wherein the packaged data comprises data including an input force measurement and a response measurement from the at least one remotely located structure, and an identifier identifying an originating location of the data, wherein the at least one central processing element is also capable of performing the modal analysis of the at least one structure based upon the data.

17. A system according to claim 16, wherein the WAN comprises the Internet.

18. A system according to claim 16 further comprising at least one data acquisition assembly, wherein each data acquisition assembly is capable of imparting a force on the at least one structure and thereafter measuring the input force on the at least one structure and a response of the at least one structure to the input force, and wherein each data acquisition assembly is capable of transmitting the data across the WAN to the at least one central processing element.

19. A system according to claim 18, wherein each data acquisition assembly comprises:

a force excitation element capable of imparting the force on the at least one structure;

a force sensor capable of measuring the input force on the at least one structure;

an accelerometer capable of measuring the response of the at least one structure to the input force; and

a client processing element capable of receiving the input force measurement and the response measurement and thereafter transmitting the data across the WAN to the at least one central processing element.

20. A system according to claim 16, wherein the at least one central processing element is capable of receiving the data and thereafter determining a frequency response function (FRF) for the structure based upon the data.

21. A system according to claim 20 further comprising at least one display, wherein the at least one central processing element is capable of driving the at least one display to present at least one of the FRF, the force input measurement and the accelerator response measurement.