Dynamic characterization system for measuring a dynamic response

Patent metadata

Field	Value
Publication number	US-2019107461-A1
Application number	US-201715729579-A
Country	US
Kind code	A1
Filing date	Oct 10, 2017
Priority date	Oct 10, 2017
Publication date	Apr 11, 2019
Grant date	—

Abstract

The present disclosure relates to a system for measuring a dynamic response of a machine. The system includes a vibration mechanism, an accelerometer, a controller and a casing. The vibration mechanism is operable to generate an excitation signal, and the accelerometer is operable to measure dynamic energy in response to the excitation signal and output a dynamic response signal indicative of the dynamic energy. The controller includes a communication interface and operates the vibration mechanism to output the excitation signal and transmit a vibration input signal based on the excitation signal by way of the communication interface. The casing houses the vibration mechanism and the controller.

First claim

What is claimed is:

1 . A dynamic characterization system comprising:
a vibration mechanism operable to generate an excitation signal; an accelerometer operable to measure dynamic energy in response to the excitation signal and output a dynamic response signal indicative of the dynamic energy; a controller including a communication interface, wherein the controller is configured to operate the vibration mechanism to output the excitation signal and transmit a vibration input signal based on the excitation signal by way of the communication interface; and a casing housing the vibration mechanism and the controller.

2 . The dynamic characterization system of claim 1 , wherein the casing further houses the accelerometer.

3 . The dynamic characterization system of claim 1 , wherein the controller transmits a vibration signal based on the dynamic response signal from the accelerometer by way of the communication interface.

4 . The dynamic characterization system of claim 1 , wherein the accelerometer is located separately from the casing.

5 . The dynamic characterization system of claim 1 further comprising a power source supplying power to at least one of the vibration mechanism or the controller, wherein the casing houses the power source.

6 . The dynamic characterization system of claim 5 , wherein the power source is a turbine generator.

7 . The dynamic characterization system of claim 1 , wherein the vibration mechanism is a piezoelectric actuator.

8 . The dynamic characterization system of claim 1 , wherein the communication interface includes a wireless transceiver.

9 . The dynamic characterization system of claim 1 , wherein the vibration mechanism is operable to output different excitation signals.

10 . A dynamic characterization system for measuring dynamic response of an object, the system comprising:
a piezoelectric actuator operable to generate an excitation signal; an accelerometer operable to measure dynamic energy in response to the excitation signal and generate a dynamic response signal indicative of the dynamic energy; a controller including a wireless transceiver, wherein the controller is configured to operate the piezoelectric actuator to output the excitation signal and output data based on the excitation signal by way of the wireless transceiver; and a casing configured to attach and detach from the object, wherein the casing houses the vibration mechanism and the controller.

11 . The dynamic characterization system of claim 10 further comprising a power source supplying power to the vibration mechanism and the controller.

12 . The dynamic characterization system of claim 11 , wherein the power source is a turbine generator.

13 . The dynamic characterization system of claim 9 , wherein the casing houses the accelerometer, and the accelerometer outputs the dynamic response signal to the controller.

14 . The dynamic characterization system of claim 13 , wherein the controller is configured to filter the dynamic response signal from the accelerometer and output data indicative of the filtered dynamic response signal using the wireless transceiver.

15 . The dynamic characterization system of claim 13 , wherein the controller transposes the dynamic response signal from a measured location to a desired location.

16 . The dynamic characterization system of claim 10 , wherein the accelerometer is positioned on the object at a location separate from the casing.

17 . A system for measuring dynamic response of a machine, the system comprising:
a piezoelectric actuator operable to generate an excitation signal; an accelerometer operable to output a response signal indicative of dynamic energy of the machine; a controller configured to operate the piezoelectric actuator to output the excitation signal, and output data indicative of the excitation signal; and a casing housing the piezoelectric actuator and the controller, and being configured to attach to the machine.

18 . The system of claim 17 , wherein the casing houses the accelerometer.

19 . The system of claim 17 , wherein the accelerometer is positioned on the machine separate from the casing.

20 . The system of claim 17 further comprising a turbine generator for supplying power to at least one of the controller or the piezoelectric actuator.

Assignees

• Ford Motor Co

Inventors

• Ziada Youssef
• Stephenson David

Classifications

• G01M7/022 Primary

  Vibration control arrangements, e.g. for generating random vibrations · CPC title

• G01M7/025

  Measuring arrangements · CPC title

• B23Q2717/00

  Arrangements for indicating or measuring · CPC title

• B23Q17/12

  for indicating or measuring vibration · CPC title

• B23Q15/007

  while the tool acts upon the workpiece · CPC title