Process of estimating relationship between element...

Data processing: structural design – modeling – simulation – and em – Simulating nonelectrical device or system

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07734453

ABSTRACT:
A process is disclosed for estimating by a computer a relationship between geometric distortion of an element used for approximately representing the shape of an object to be analyzed by a finite element method, and an analysis error which occurs, due to the geometric distortion of the element, in analysis results of the object by the finite element method. The process includes: assuming at least one deformation mode occurring in the element upon deformation of the object, in the form of at least one of tension, bending, shear, and torsion; and estimating the analysis error associated with the geometric distortion, for each of the at least one assumed deformation mode.

REFERENCES:
patent: 5315537 (1994-05-01), Blacker
patent: 7027048 (2006-04-01), Brombolich
patent: 7363198 (2008-04-01), Balaniuk et al.
patent: 4-268674 (1992-09-01), None
patent: 11-25292 (1999-01-01), None
“An Element-Level Error Estimator for Mesh Refinement of Finite Element Models” by Keating et al, Collection of Technical Papers. 36th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and AIAA/ASME/AHS Adaptive Structures Forum, Apr. 10-13, 1995, Part 2, p. 1280-1288.
B.L. Croft, “A method of self adaptive rezoning for the case of large deformation finite element problems utilizing rezoning indicators derived from eigenvalue testing”, 1992, Naval Command, Control and Ocean Surveillance Center, pp. 1-293.
K Mallikarjuna Rao et al., “A set of pathological tests to validate new finite elements”, Dec. 2001, Sadhana, vol. 26, pp. 549-590.
Barna Szabo et al., “Finite element analysis”, 1991, John Wiley & Sons, pp. 290-293, 344-350.
J.E. Akin, “Finite elements for analysis and design”, 1994, Academic Press, pp. 62-66.
Susanne C. Brenner et al., “The mathematical theory of finite element methods”, 2002, Springer, p. 235.
Akira Tezuka, English translation of “Adaptive Mesh Control In Finite Element Method”, 1999, Simulation, vol. 18, No. 2, pp. 1-27.
H.S. Oh et al., “A simple distortion error estimator for size and distortion of 2D isoparametric finite elements”, 1996, Computers & Structures, vol. 59, No. 6, pp. 989-999.
Akira Tezuka, “Adaptive Mesh Control in Finite Element Method, Simulation”, Kabushiki Kaisha Nittetsu Technology Information Center, vol. 18, No. 2, Jun. 1999, pp. 26-34, (with English Abstract).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process of estimating relationship between element... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of estimating relationship between element..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of estimating relationship between element... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4152918

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.