Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ahmad Feyz Dizaji"'
Publikováno v:
Journal of Mechanical Science and Technology. 28:1609-1614
An optimal single DOF dynamic absorber is presented. A tremor has a random nature and then the system is subjected to a random excitation instead of a sinusoidal one; so the H2 optimization criterion is probably more desirable than the popular H∞ o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a459498b0f9724451a72c3b13e63bae
https://doi.org/10.1007/s12206-014-0104-8
https://doi.org/10.1007/s12206-014-0104-8
Publikováno v:
Journal of Mechanical Science and Technology. 26:3243-3252
The analysis of lateral extrusion process was carried out. A three dimensional FE model was developed to analyze the effects of some important geometrical parameters such as initial billet dimensions, gap height and frictional condition on the requir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54843665d31f0084d37b9de4fbea9371
https://doi.org/10.1007/s12206-012-0830-8
https://doi.org/10.1007/s12206-012-0830-8
Autor:
Mohammad Habibi-Parsa, Arya Mirsepasi, Mahmoud Nili-Ahmadabadi, Ahmad Feyz Dizaji, Hadi Ghasemi-Nanesa
Publikováno v:
Materials Science and Engineering: A. 551:32-39
The method of severe plastic deformation (SPD) is often used to produce bulk ultrafine grained (UFG) metallic materials. SPD is a procedure, whereby the initial coarse grained structure of the material usually changes to deformed and UFG state. In th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f057b190e34377470aa81e02802a0675
https://doi.org/10.1016/j.msea.2012.04.073
https://doi.org/10.1016/j.msea.2012.04.073
Publikováno v:
Nonlinear Dynamics. 69:1263-1284
In this paper, we consider the main problem of variational calculus when the derivatives are Riemann–Liouville-type fractional with incommensurate orders in general. As the most general form of the performance index, we consider a fractional integr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17572614421bb5c41d10d4f00057615c
https://doi.org/10.1007/s11071-012-0345-y
https://doi.org/10.1007/s11071-012-0345-y
Publikováno v:
Mathematical and Computer Modelling. 55(3-4):1106-1117
In this paper, we discuss the existence of the solution for a generalized fractional differential equation with non-autonomous variable order operators. In contrast to constant order fractional calculus, some standard relations including composition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f24756d5c92c73dcc85dcd64e35b0e3
Publikováno v:
Materials and Manufacturing Processes. 25:1413-1417
Metal bellows have wide applications in aerospace, micro-electromechanical, and industrial systems. Some defects such as wrinkling and bursting may occur during the metal bellows forming process. In contrast to wrinkling, bursting is generally classi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd485ffc403ce61a994424dcbf0d1241
https://doi.org/10.1080/10426914.2010.499579
https://doi.org/10.1080/10426914.2010.499579
Publikováno v:
Journal of Mechanical Science and Technology. 23:2299-2307
An initial-boundary value problem that is Duffing’s oscillator with time varying coefficients will be studied. Using Banach’s fixed-point theorem, the existence of periodic solution of the equation will be predicted. The method applied in this pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cf5d3e1f149522fb24dc7b7cc13bf49
https://doi.org/10.1007/s12206-009-0501-6
https://doi.org/10.1007/s12206-009-0501-6
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 46:551-561
In order to predict the initiation of necking in metal bellows forming process, a methodology for determination of the forming limit diagram and the forming limit stress diagram is represented in this paper. The methodology is based on the Marciniak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e68ef64607d7cb81951a87b21b86e01
https://doi.org/10.1007/s00170-009-2121-9
https://doi.org/10.1007/s00170-009-2121-9