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:
Sep. 21, 2010
Filed:
Aug. 07, 2007
Hirohisa Enomoto, Hitachinaka, JP;
Shigeru Sakamoto, Tsuchiura, JP;
Hirohisa Enomoto, Hitachinaka, JP;
Shigeru Sakamoto, Tsuchiura, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
It includes: a part which changes a computer-aided design model according to a design variable and outputs it; a part which calculates and outputs natural vibration modes and natural frequencies; a part which makes a natural vibration mode image; a part which binarizes a natural vibration mode image by a threshold value to make a binary image; a part which extracts pattern information from a binary image and outputs it together with the image; a part for distinguishing natural vibration mode which, using pattern information, distinguishes the natural vibration mode to be tracked from natural vibration modes after deformation and outputs it; and a part for calculating optimum solution which finds a design variable which makes the natural frequency of a natural vibration mode a target value and outputs it. Thereby, the structural optimization system can easily distinguish and track natural vibration modes through computer-aided design model change in structural design.