<abstract xmlns="http://www.w3.org/1999/xhtml">The current paper aims to study, using numerical simulation, the influence of the wall angle on the single point incremental forming process. For the analysis there has been used the LS-Dyna software and three explicit dynamic analyses were run for three parts with wall angles of 450, 550 and 650. The factors taken into account are the main strains, the thickness reduction and the forces on three directions. The material data introduced into the simulation were determined based on an uniaxial traction test on an Instron 5587 testing machine and the Aramis system was used as optical extensometer.</abstract>

Numerical Study about the Influence of Wall Angle about Main Strains, Thickness Reduction and Forces on Single Point Incremental Forming Process

<abstract xmlns="http://www.w3.org/1999/xhtml">Designing a die is in every application field an intensive process of bringing together know how from design, testing and every-day use from previous dies with the new application requirements. Contribution deals with a knowledge oriented, modular and feature integrated computer aided design system for die development. This paper describes the concepts behind designing a hydroforming die for sheet metal forming, with easy application-use in small workshops for testing hydroforming capabilities of different materials.</abstract>

Designing a Die for Hydroforming

<abstract xmlns="http://www.w3.org/1999/xhtml">This paper presents an experimental study of the behavior of anti-roll power link subjected to bending, power link coming from an Opel Astra G. The power link is made of PA66 GF30 polyamide. For this study, there were used a universal testing machine (Instron 5587) and a real-time strain measurement optical system (Aramis). The results showed are those obtained in the case of a compression force of 1,000 [N] namely: major Strain ε1, minor strain ε2, equivalent von Mises strain, displacement on X axis, displacement on Y axis (compression force direction), displacement on Z axis.</abstract>

Faculty of Engineering / Department of Industrial Engineering and Management, ‘Lucian Blaga’ University of Sibiu, Sibiu,

Faculty of Engineering / Department of Industrial Machinery and Equipment, ‘Lucian Blaga’ University of Sibiu, Sibiu,

Faculty of Engineering / Department of Department of Industrial Machinery and Equipment, ‘Lucian Blaga’ University of Sibiu, Sibiu,

Experimental Study Regarding of Bending Behaviour of Stabilizator Link

<abstract xmlns="http://www.w3.org/1999/xhtml">This paper proposes an organological approach of one of the components of front suspension, namely anti-roll power link. There will be realized a CAD 3D modelling of this power link. 3D modelling is generalized and there were used the powers of Catia V5R20 software. Parameterized approach provides a high flexibility in the design, meaning that dimensional and shape changes of the semi-power link are very easy to perform just by changing some parameters. Several new versions are proposed for the anti-roll power link body. At the end of the work, it is made a static analysis of the semi-power link model used in the suspension of vehicles OPEL ASTRA G, ZAFIRA, MERIVA, and constructive optimization of its body.</abstract>

professor / Ph.D. Faculty of Engineering/Department Industrial Engineering and Management, ‘Lucian Blaga’ University, Sibiu,

Ph.D. student, Faculty of Engineering/Department Industrial Engineering and Management, ‘Lucian Blaga’ University, Sibiu,

professor / Ph.D. Faculty of Engineering/Department Machine and Industrial Equipment, ‘Lucian Blaga’ University, Sibiu,

Generalized Modelling of the Stabilizer Link and Static Simulation Using FEM

<abstract xmlns="http://www.w3.org/1999/xhtml">The objective of this paper is to achieve a functional system in terms of hardware and software, to measure temperature and humidity. Also, this system will allow to monitoring the time. In this, we use an Arduino board with interfacing a sensor placed in local environment to measure temperature and humidity. The paper aims to achieve the following goals:
<list list-type="simple"><list-item><label>-</label>achieving a functional system in terms of hardware and software that allows measuring and monitoring temperature, humidity and the time;</list-item><list-item><label>-</label>using a development board for the communication with the sensor and clock;</list-item><list-item><label>-</label>implementation a program that allows requirements.</list-item></list></abstract>

How to Use the DHT22 Sensor for Measuring Temperature and Humidity with the Arduino Board

<abstract xmlns="http://www.w3.org/1999/xhtml">Until recently, the Romanian weather stations utilized ordinary transducers that acquire useful information related to the desired physical inputs. These inputs will be converted into electrical signals easy to be processed by analog to digital converters.This paper proposed a new approach based on smart sensors system that change the interior behavior in order to optimize data acquirements from the environment. The smart sensor characteristics are stored into himself in a transducer electronic data sheet form (TEDS). The intelligent transducer generat together with the measured analogic signal also a digital interface. Through this interface the transducer’s catalog data can be read from the transducer.</abstract>

About the Smart Weather Station

<abstract xmlns="http://www.w3.org/1999/xhtml">It is a fact that the component-oriented programming, well organized, can bring a large increase in efficiency in the development of large software systems. This paper proposes a model for building software systems by assembling components that can operate independently of each other. The model is based on a computing environment that runs parallel and distributed applications. This paper introduces concepts as: abstract aggregation scheme and aggregation application. Basically, an aggregation application is an application that is obtained by combining corresponding components. In our model an aggregation application is a word in a language.</abstract>

(Ph.D. student), Faculty of Engineering/Department of Computers and Information Technology, “Lucian Blaga” University of Sibiu, Sibiu,

(associate professor / Ph.D.), Faculty of Engineering/Department of Computers and Information Technology, “Lucian Blaga” University of Sibiu, Sibiu,

A Linguistic Model in Component Oriented Programming

<abstract xmlns="http://www.w3.org/1999/xhtml">In this article we calculate the exact solution of the steady flow of non-Newtonian Casson fluid, over a stretching/shrinking sheet. The governing partial differential equations (PDEs) are transformed into ordinary differential equation (ODE) by using similarity transformation and then solved analytically by utilizing the exact solution. The closed form unique solution is obtained in the case of stretching sheet whereas for shrinking sheet unique and dual solutions are obtained. Influences of Casson fluid and suction/injection parameter on dimensionless velocity function are discussed and plotted graphically; also the effects of skin friction coefficient are presented in graphical form. Comparisons of current solutions with previous study are also made for the verification of the present study.</abstract>

Dual solution of Casson fluid over a porous medium: Exact solutions with extra boundary condition

<abstract xmlns="http://www.w3.org/1999/xhtml">In this paper, we investigate two problems arise in pollutant transport in rivers, and we give some numerical results to approximate this solutions. We determined the approximate solutions using two numerical methods: 1. B-splines combined with Runge-Kutta methods, 2. BVP4C solver of MATLAB and then we compare the run-times.</abstract>

Some Numerical Results of Multipoints Bomndary Value Problems Arise in Environmental Protection

AHEAD OF PRINT

Volume 75 (2023): Issue 1 (December 2023)

Volume 74 (2022): Issue 1 (December 2022)

Volume 73 (2021): Issue 1 (December 2021)

Volume 72 (2020): Issue 1 (December 2020)

Volume 71 (2019): Issue 1 (December 2019)

Volume 70 (2018): Issue 1 (December 2018)

Volume 69 (2017): Issue 1 (December 2017)

Volume 68 (2016): Issue 1 (December 2016)

Volume 67 (2015): Issue 1 (September 2015)

Volume 66 (2015): Issue 1 (July 2015)

Volume 65 (2014): Issue 1 (December 2014)

Volume 64 (2014): Issue 1 (November 2014)

Acta Universitatis Cibiniensis. Technical Series

 Publishing House and Owner: Lucian Blaga University of Sibiu, Romania  Acta Universitatis Cibiniensis - Technical Series provides an excellent support for the dissemination of the scientific research results conducted by professors, PhD students and other researchers.  Acta Universitatis Cibiniensis was first published in 1997. It first started as a scientific bulletin written in Romanian language and since 1998 submitted papers have been accepted other languages: English, French or German.  Since 2003, after reassessment by CNCSIS, Acta Universitatis Cibiniensis appears as Technical Series, ISSN 1583-7149, with an annual English volume.  In 2014 the first online volume was published by the academic publisher De Gruyter with the ISSN 2668-6449. Since than, Acta Universitatis Cibiniensis Technical Series volumes are available online and a new volume is added annually.  The main subjects covered by the scientific bulletin during its publishing history were:   Advanced Manufacturing Technologies  Mechanical Engineering, Mechatronics and Robotics  Computer Science and Automation  Materials Science and Technology  Academic Education and Management   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 