The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2005
Filed:
Apr. 18, 2003
Shuichi Samata, Yokohama, JP;
Yukihiro Ushiku, Yokohama, JP;
Akihito Yamamoto, Yokohama, JP;
Takashi Nakao, Kawasaki, JP;
Takeo Furuhata, Yokkaichi, JP;
Shuichi Samata, Yokohama, JP;
Yukihiro Ushiku, Yokohama, JP;
Akihito Yamamoto, Yokohama, JP;
Takashi Nakao, Kawasaki, JP;
Takeo Furuhata, Yokkaichi, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A system for predicting life of a rotary machine, includes a vibration gauge configured to measure time series data of a peak acceleration of the rotary machine; a band pass filter configured to filter an analog signal of the time series data of the peak acceleration measured by the vibration gauge in a frequency band including a first analysis frequency expressed as a product of an equation including a number of rotor blades of the rotary machine and a normal frequency unique to the rotary machine; and a data processing unit configured to predict a life span of the rotary machine by characteristics of the filtered analog data of the time series data of the peak acceleration with the first analysis frequency.