Volume 15 (2022)
Volume 14 (2021)
Volume 13 (2020)
Volume 12 (2019)
Volume 11 (2018)
Volume 10 (2017)
Volume 9 (2016)
Volume 7 (2014)
Volume 6 (2013)
Volume 5 (2011-2012)
Volume 4 (2010-2011)
Volume 3 (2009-2010)
Volume 2 (2008-2009)
Volume 1 (2007-2008)
1. Multi layered finite element analysis of graded coatings in frictional rolling contact

R. Jahedi; S. Adibnazari

Volume 8, Issue 1 , March 2015, Pages 1-12

  A plain strain analysis of frictional rolling contact on an elastic graded coating is presented in this paper. Finite element method is applied to gain an understanding of the stresses and contact zone properties caused during rolling contact. The effects of friction, material stiffness ratio and coating ...  Read More

2. Statistical Analysis and Optimization of Factors Affecting the Spring-back Phenomenon in UVaSPIF Process Using Response Surface Methodology

M. Vahdati; R. A. Mahdavinejad; S. Amini

Volume 8, Issue 1 , March 2015, Pages 13-23

  Ultrasonic Vibration assisted Single Point Incremental Forming (UVaSPIF) process is an attractive and adaptive method in which a sheet metal is gradually and locally formed by a vibrating hemispherical-head tool. The ultrasonic excitation of forming tool reduces the average of vertical component of forming ...  Read More

3. Vibration Analysis of a Multi-disk, Bearing and Mass Unbalance Rotor Using Assumed Modes Method

R. Norouzi; M. Rafeeyan; H. Dalayeli

Volume 8, Issue 1 , March 2015, Pages 25-33

  In this paper, a simple and efficient method for modeling and solving the equations of a rotor with any number of disks, bearings and mass unbalances is presented using the assumed modes method. This model consists of a continuous shaft, arbitrary number of mass unbalances in any axial location and phase ...  Read More

4. Optimization of the Forging Process of a Gas Turbine Blade using the Finite Element Analysis and Response Surface Method

V. Alimirzaloo; F. R. Biglari

Volume 8, Issue 1 , March 2015, Pages 35-44

  Forging of gas turbine blades needs a close control of the process parameters. These parameters require a suitable optimization method to achieve the best process conditions. This paper presents a hybrid method for the optimization of the forging process of an aerofoil blade. Forging process of the aerofoil ...  Read More

5. Modal and Aeroelastic Analysis of A High-Aspect-Ratio Wing with Large Deflection Capability

R. Koohi; H. Shahverdi; H. Haddadpour

Volume 8, Issue 1 , March 2015, Pages 45-54

  This paper describes a modified structural dynamics model for aeroelastic analysis of high-aspect-ratio wings undergoing large deformation behavior. To gain this aim, a moderate deflection beam model is modified with some important large deflection terms and then coupled with a state space unsteady aerodynamics ...  Read More

6. Experimental study of the characteristics of the wake and drag coefficient changes of a car model in unsteady flow

V. Barzanooni; A.B. Khoshnevis

Volume 8, Issue 1 , March 2015, Pages 55-65

  In this study, changes in velocity, turbulence intensity and drag coefficient in the wake of a notch-back car modelling steady and unsteady flow is measured and evaluated. The blow open circuit wind tunnel is used to simulate fluid flow. Turbulence intensity and nominal maximum speed of the device is ...  Read More

7. Predicting Strip Tearing in Cold Rolling Tandem Mill using Neural Network

A. Haghani; A. R. Khoogar; F. Kumarci

Volume 8, Issue 1 , March 2015, Pages 67-75

  Strip tearing during cold rolling process has always been considered among the main concerns for steel companies. Several works have been done so far regarding the examination of the issue. In this paper, experimental data from cold rolling tandem mill is used for detecting strip tearing. Sensors are ...  Read More

8. Finite Element Prediction on the Machining Stability of Boring Machine with Experimental Verification

R. Barzegar; M. Mahboubkhah; V. Zakeri; R. Matin; H. Hosseingholi Pourasl; F. Abdollahzadeh Bina

Volume 8, Issue 1 , March 2015, Pages 77-83

  The occurrence of chatter vibrations in boring operation has a great influence in improving workpiece dimensional accuracy, surface quality and production efficiency. In this paper instability analysis of machining process is presented by dynamic model of boring machine. This model, which consists of ...  Read More

9. Surface Characteristics Improvement of AZ31B Magnesium by Surface Compositing with Carbon Nano-tubes through Friction Stir Processing

M. Soltani; M. Shamanian; B. Niroumand

Volume 8, Issue 1 , March 2015, Pages 85-95

  In this research, the compositing of the surface of AZ31B magnesium alloy with CNT was studied by FSP. The parameters under study were rotational speed (500-1500 rpm), transverse speed (12-44 mm/min), number of passes (1-4), and CNT weight fraction (0-2%). Microhardness testing, optical metallography, ...  Read More

10. Irreversibility Analysis and Numerical Simulation in a Finned-Tube Heat Exchanger Equipped with Block Shape Vortex Generator

M. Ghazikhani; E. Noorifar; A. Mohammadian

Volume 8, Issue 1 , March 2015, Pages 97-106

  In this paper the effect of block shape Vortex Generators (VGs) on an air-water fin-tube heat exchanger has been studied experimentally using exergy analysis method. Also the effect of these VGs on increasing heat transfer rate has been simulated numerically and the Results show a good agreement with ...  Read More