Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Florina Carmen Ciornei"'
Autor:
Stelian ALACI, Florina Carmen CIORNEI, Dumitru AMARANDEI, Constantin FILOTE, Simion PĂTRAŞ-CICEU, Dorel PRODAN
Publikováno v:
Fiabilitate şi Durabilitate, Vol 2, Iss 8, Pp 49-54 (2011)
Starting form a virtual model of a device designed to investigate friction force effects in colliding mechanical systems, the authors have developed a test-rig. The friction force effects had to be estimated using a rotating sensor. Finally, to prote
Externí odkaz:
https://doaj.org/article/96d5b83d0ea746e79dfa306d743652db
Autor:
Stelian ALACI, Florina Carmen CIORNEI, Dumitru AMARANDEI, Constantin FILOTE, Simion PĂTRAŞ-CICEU, Dorel PRODAN
Publikováno v:
Fiabilitate şi Durabilitate, Vol 1, Iss 7, Pp 65-70 (2011)
The paper presents some aspects concerning the design of cam mechanisms with oscillating flat facedfollower, using computer softwares. There are deduced the analytical equations for the profile of the cam, thusenabling the study of mechanism’s reli
Externí odkaz:
https://doaj.org/article/fd413d8088ec46558820da6c441de00d
Autor:
Stelian ALACI, Florina Carmen CIORNEI, Dumitru AMARANDEI, Constantin FILOTE, Delia-Aurora CERLINCĂ, Luminiţa IRIMESCU
Publikováno v:
Fiabilitate şi Durabilitate, Vol 2, Iss 6, Pp 79-84 (2010)
The finite element method is applied to find the stress field from the parts of a wobble plate mechanism. There are thus identified the most stressed component elements and the respective regions. For the two contact neighbourhoods where stress conce
Externí odkaz:
https://doaj.org/article/6fb2939f742e4063a47f270968055b79
Autor:
Stelian ALACI,, Florina Carmen CIORNEI, Dumitru AMARANDEI, Constantin FILOTE, Delia-Aurora CERLINCĂ, Luminiţa IRIMESCU
Publikováno v:
Fiabilitate şi Durabilitate, Vol 1, Iss 5, Pp 67-72 (2010)
The present paper presents the method of estimating the stress concentrator effect of a spherical void from an elastic half-space. An essential part consists in estimation of FEM error by finding the contact pressure from half-plane using an analytic
Externí odkaz:
https://doaj.org/article/50e825413b4f4cbc9fc41b23af6c2f27
Autor:
Stelian Alaci, Costica Lupascu, Ionut-Cristian Romanu, Delia-Aurora Cerlinca, Florina-Carmen Ciornei
Publikováno v:
Computation, Vol 12, Iss 9, p 181 (2024)
Most studies in the literature consider the value of the coefficient of dynamic friction to be constant. We studied the evolution of a dynamic system when the coefficient of friction results in different values depending on the contact surfaces. A sy
Externí odkaz:
https://doaj.org/article/e819c62b8d76483fb74b821881977964
Publikováno v:
Axioms, Vol 13, Iss 6, p 372 (2024)
A simple dynamic system with dry friction is studied theoretically and numerically. Models of systems including dry friction are not easily obtained, as defining the relationship between the friction force and the relative velocity presents a signifi
Externí odkaz:
https://doaj.org/article/8459f15ce81a4be6a5a045f2232e315c
Autor:
Stelian Alaci, Florina-Carmen Ciornei, Ionut-Cristian Romanu, Ioan Doroftei, Carmen Bujoreanu, Ioan Tamașag
Publikováno v:
Applied Sciences, Vol 14, Iss 5, p 2043 (2024)
The paper proposes a rapid, straightforward, and inexpensive method for finding the basic parameters of helical gears with an involute profile. The basic parameters envisaged are the normal module, normal profile shift coefficient, and the helix angl
Externí odkaz:
https://doaj.org/article/925698ac85e446cfbdd5d4af1e8f5663
Autor:
Stelian Alaci, Florina-Carmen Ciornei, Ionut-Cristian Romanu, Ioan Doroftei, Carmen Bujoreanu, Ioan Tamașag
Publikováno v:
Machines, Vol 11, Iss 12, p 1046 (2023)
This paper proposes a new rapid and straightforward method along with a related device for finding the three basic parameters of an actual external involute spur gear. The number of teeth is easily counted, but the other two parameters—the module a
Externí odkaz:
https://doaj.org/article/6edd77cf368241a0a4e923fb11df29f9
Autor:
Stelian Alaci, Ilie Musca, Carmen Bujoreanu, Ionut-Cristian Romanu, Nicolae-Adrian Nitu, Florina-Carmen Ciornei
Publikováno v:
Lubricants, Vol 11, Iss 8, p 340 (2023)
The paper proposes the study of dry friction by means of a short eccentric rotor. The rotor was designed and realised in the laboratory. In an ideal frictionless situation, a rotor actuated by gravity will have an angular velocity which increases ind
Externí odkaz:
https://doaj.org/article/008de8e8293946a3922e4b2e2bacdf18
Autor:
Stelian Alaci, Ioan Doroftei, Florina-Carmen Ciornei, Ionut-Cristian Romanu, Toma-Marian Ciocirlan, Mariana-Catalina Ciornei
Publikováno v:
Axioms, Vol 12, Iss 7, p 707 (2023)
This study proposes a solution for the transmission of rotation motion between two shafts with crossed directions. For constructive simplicity, the solutions including the planar pair were preferred and, from the two variants, namely structurally sym
Externí odkaz:
https://doaj.org/article/6fb93b80d7cd41699aa6a60505faffad