Zobrazeno 1 - 10
of 35
pro vyhledávání: '"I. U. Ojalvo"'
Autor:
I. U. Ojalvo
Publikováno v:
AIAA Journal. 29:2274-2277
Matrix eigenvalue theory is presently used to examine the source of ill-conditioning in linear algebraic equations; the approach highlights the critical role played by the zero and near-zero eigenvalues and corresponding eigenvectors of poorly-condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef6c00321974f109ca555910deab4161
https://doi.org/10.2514/3.10874
https://doi.org/10.2514/3.10874
Publikováno v:
Volume 16: Safety Engineering, Risk Analysis and Reliability Methods.
The US Consumer Product Safety Commission (CPSC) estimates that there are approximately 180,000 serious ladder accidents in the US each year. Stepladders are one of the most common types of ladders in use, and it is estimated that they are involved i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a6dce2985cfd582110e740565088b7a
https://doi.org/10.1115/imece2008-67399
https://doi.org/10.1115/imece2008-67399
Autor:
I. U. Ojalvo
Publikováno v:
Mathematical and Computer Modelling. 14:209-212
A new method, named Epsilon Decomposition (E-D), for the efficient solution of ill-conditioned linear algebraic equations is presented. If represents a significant improvement over Singular Value Decomposition (SVD), which requires the user to obtain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::715ecf1a81b9d201641de05fdfed12c6
https://doi.org/10.1016/0895-7177(90)90177-o
https://doi.org/10.1016/0895-7177(90)90177-o
Autor:
E. C. Cohen, I. U. Ojalvo
Publikováno v:
SAE Technical Paper Series.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac9c16b7682a7100ead1f8def21b0558
https://doi.org/10.4271/970779
https://doi.org/10.4271/970779
Autor:
I. U. Ojalvo
Publikováno v:
31st Structures, Structural Dynamics and Materials Conference.
Matrix eigenvalue theory is used to examine the source of ill-conditioning in linear algebraic equations. This approach highlights the crucial role played by the zero and near-zero eigenvalues and corresponding eigenvectors of poorly conditioned syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::421f60256078dcc565a4ccb1cdd33159
https://doi.org/10.2514/6.1990-1146
https://doi.org/10.2514/6.1990-1146
Autor:
I. U. Ojalvo
Publikováno v:
The Shock and Vibration Digest. 7:3-9
A highly efficient computer program, called ALARM, for the determination of eigenvalues and eigenvectors of large symmetric matrices (over 10,000 degrees of freedom), was described. As such, it is highly useful for analyzing complex finite element an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ba7c5bf85dbd4d10ebdfe4ca75372d0
https://doi.org/10.1177/058310247500701203
https://doi.org/10.1177/058310247500701203
Autor:
I. U. Ojalvo
Publikováno v:
AIAA Journal. 25:1386-1390
This paper is concerned with the simplified numerical computation of eigenvector derivatives for very large problems with symmetric, banded matrices, such as those ordinarily encountered in structural dynamic systems. Starting with a brief review of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50b00c5e4cd3969121487d201598d2bf
https://doi.org/10.2514/3.9793
https://doi.org/10.2514/3.9793
Autor:
David P. Weber, M. G. Stamatelatos, T. R. England, S. L. Gralnick, I. U. Ojalvo, I. J. Zatz, T. Balderes, S. Bian, Richard J. Page, Charles L. Fink, Alan B. Rothman, Robert K. Lo, Lewis E. Robinson, Paul H. Froehle, J. E. Selle, P. Angelini, R. H. Rainey, J. I. Federer, A. R. Olsen, H. D. Ringel, E. Zimmer, D. J. Murphy, W. M. Farr, B. D. Ganapol
Publikováno v:
Nuclear Technology. 45:199-202
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49ff401ddaabbb9cb1bac53489b72979
https://doi.org/10.13182/nt79-a32290
https://doi.org/10.13182/nt79-a32290
Publikováno v:
AIAA Journal. 14:1219-1224
An iterative solution scheme is presented for the static and dynamic analysis of built-up structures in which the stiffness of one relatively rigid component is a dominant factor in governing the overall response. In complex problems, where each stru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcb5ad2f85f90c05c37844ed16806897
https://doi.org/10.2514/3.61456
https://doi.org/10.2514/3.61456
Autor:
I. U. Ojalvo
Publikováno v:
AIAA Journal. 23:1578-1582
A procedure for minimizing the elastic shear stress concentration in adhesive lap joints is presented. The proposed method is based upon tapering the adherends to achieve smooth stiffness transitions and uniform shear stresses. Both single and double
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1dabd86666e5e3744bcc1ecfb8d3201
https://doi.org/10.2514/3.9126
https://doi.org/10.2514/3.9126