Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Iulian Popescu"'
Publikováno v:
Journal of Industrial Design and Engineering Graphics, Vol 17, Iss 2 (2022)
A conicographic mechanism of I. I. Artobolevski is studied structurally and kinematically (positions). The mechanism is R-RPP-RPR-PRP type. The positions of the mechanism are calculated by the closed-loop method. It is found that the mechanism can dr
Externí odkaz:
https://doaj.org/article/f70369742be24209840229bb81a255de
Publikováno v:
Journal of Industrial Design and Engineering Graphics, Vol 17, Iss 2 (2022)
The Proposition 4 from the 11-th volume (called Book of Lemmas) of „Great Books of the Western World” (printed in USA in 1952) presents the properties of a remarkable curve from Antiquity. This curve was studied by Archimedes, who called it Arbel
Externí odkaz:
https://doaj.org/article/d1c14261bc7f4fa29134318bb54d9174
Publikováno v:
Fiabilitate şi Durabilitate, Vol 14, Iss 1, Pp 5-13 (2021)
Usually, a study regarding a mechanism starts from the kinematic diagram, firstly being analyzed the structure in order to see if the mechanism works. Here it was the other way around, from the chosen structural diagram in order for the last dyad t
Externí odkaz:
https://doaj.org/article/f3a638d4c572495bbb211df9d7fc5723
Autor:
Alina Duta, Iulian Popescu
Publikováno v:
Journal of Industrial Design and Engineering Graphics, Vol 15, Iss 1, Pp 9-12 (2020)
An Artobolevskii mechanism that generates the parabolic snail is being studied. The structural analysis of the mechanism proved to be difficult, finally establishing that one element and two kinematic couples with which it binds are structurally para
Externí odkaz:
https://doaj.org/article/6c7dd82bb4b44215b7f9154001f79169
Autor:
Iulian Popescu, Alina Duta
Publikováno v:
Journal of Industrial Design and Engineering Graphics, Vol 15, Iss 1, Pp 25-28 (2020)
The kinematic possibilities of a mechanism created by I. I. Artobolevskii for tracing Poncelet's capricornoid are studied. The structure of the mechanism is also studied by the contour method and the desired curve is obtained. Next, some parameters o
Externí odkaz:
https://doaj.org/article/4f977db7156146a7a0e28d802281d202
Publikováno v:
Journal of Research and Innovation for Sustainable Society, Vol 13, Iss 1, Pp 35-41 (2020)
In the paper, data on the geometric construction of the cissoid are given and some mechanisms that generate it are presented. The analysis of a mechanism created by Artobolevskii is detailed, finding its limitations: it generates a single branch of
Externí odkaz:
https://doaj.org/article/75c2eecdf3534e9e9fb2c15bd30a6fa7
Publikováno v:
Journal of Research and Innovation for Sustainable Society, Vol 13, Iss 1, Pp 28-34 (2020)
The ancient problem of the duplication of the cube, solved only in 1837, led to a mechanism generating this curve, duplicatrix cubic, given in the literature. In this paper the mechanism is structurally analyzed and the generated trajectories are s
Externí odkaz:
https://doaj.org/article/4daa02944b4343a1a0d11bf02ae98b38
Publikováno v:
Journal of Research and Innovation for Sustainable Society, Vol 13, Iss 1, Pp 42-50 (2020)
A comparative morphological analysis of the masticatory apparatus of man and dog is presented. We start from the anatomical data of the masticatory apparatus and from the possible movements of these biological mechanisms. The paper proposes a biolo
Externí odkaz:
https://doaj.org/article/1c66ff3a0bbb48479f8ea0c5e87b87c1
Autor:
Liliana Luca, Iulian Popescu
Publikováno v:
Analele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, Vol 2019, Iss 2, Pp 53-58 (2019)
The synthesis of a mechanism of type R-RRP-RRP-RPR was made, starting from the rod-crank mechanism, completing it with two dyads. It was sought to obtain curves generated by points on a connecting rod that rests at the ends on other connecting curves
Externí odkaz:
https://doaj.org/article/7b2bafe10aa84990af3f56fc3f61929e
Autor:
Iulian Popescu, Liliana Luca
Publikováno v:
Analele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, Vol 2019, Iss 2, Pp 23-30 (2019)
An R-PRR-RPP-RPR type mechanism was obtained by binding two dyads to the oscillating slide mechanism. The aim was to obtain a mechanism with the final connecting rod supported on the connecting rod curves generated by the previous dyads, so that the
Externí odkaz:
https://doaj.org/article/504f25b4ddcc4ad6ae52bf8a99a3c27d