Dynamic unbalance calculating method and dynamic unbalance testing device

• US 20060015270A1
• Filed: 11/10/2003
• Published: 01/19/2006
• Est. Priority Date: 11/29/2002
• Status: Abandoned Application

• Current Assignee: Katsumi Tsuji
• Original Assignee: Katsumi Tsuji
• Inventors: Tsuji, Katsumi
• Application Number:
  US10/535,438
• Publication Number:
  US 20060015270A1
• Time in Patent Office: Days
• US Class Current: 702/56
• CPC Class Codes: G01M 1/08 Instruments for indicating directly the magnitude and phase of the imbalance
• CPC Class Codes: G01M 1/16 by oscillating or rotating the body to be tested
• CPC Class Codes: G01M 1/22 and converting vibrations due to imbalance into electric variables

Abstract

The magnitudes and angular positions of dynamic unbalance in rotor are determined by the calculating method of this invention from the original vibration vectors. The original vibration vectors (magnitude and angular position) obtained by measurements using a vibration sensor at bearings supporting the rotor has its specific unbalance calculated from the dynamic unbalance vectors (magnitude, angular position) in the rotor obtained by the vector calculation method on the basis of the ratios of the distances between the bearings to the distance between the two correction planes chosen arbitrarily in the rotor.

Claims

1. The calculating method to determine the dynamic unbalance in rotors by the vector calculation which is using with the ratios between the distance lengths of bearings of machines and apparatus and the ratios of the distance length of arbitrarily chosen two correction planes without the test runs attached with trial masses, based on the data consist of magnitudes and directions for the vibration vector quantities of displacement, velocity, or acceleration which originated in dynamic unbalance in rotor, and which are measured at the two bearings of the rotating machines or dynamic balancing machines

2. The computers, measuring instruments and testing facilities, which are directly or indirectly applied or equipped the calculating method to determine the dynamic unbalance in rotor with the vector calculation mentioned in the claim 1.