Volume 15 (2022)
Volume 14 (2021)
Volume 13 (2020)
Volume 12 (2019)
Volume 11 (2018)
Volume 10 (2017)
Volume 9 (2016)
Volume 8 (2015)
Volume 7 (2014)
Volume 6 (2013)
Volume 5 (2011-2012)
Volume 4 (2010-2011)
Volume 3 (2009-2010)
Volume 1 (2007-2008)
1. Design and Manufacturing Electrochemical Jet Turning Machine and Investigation of its Effective Parameters

Amin Mirahamadi; Nader Sharafi

Volume 2, Issue 2 , March 2009

  The applications of electrochemical machining are increasing because of increasing requests of industries for materials with high strengh and high hardness. Regular ECM uses a tool with spicified profile shape that is similar to final shape of workpiece. In this reasearch a nozzle that delivers electrolyte ...  Read More

2. Investigation of Machining Parameters in Wire Electrical Discharge Machining (WEDM) on the Surface Roughness & Cutting Speed of Tungsten Carbide

Mehdi Jafarian; GholamHosein Dehghan; Abbas Vafaeisefat

Volume 2, Issue 2 , March 2009

  Surface roughness is one of the most important parameters that plays very critical role in determining the quality of engineering components. A good surface quality resulting in improve of fatigue strength, corrosion and wear resistance of the workpiece. On the other hand, increasing cutting speed and ...  Read More

3. Two-Phase Heat Transfer and Pressure Drop of Carbon Dioxide in Pipes

Zahara Baniamerian; Cirus Aghanajafi

Volume 2, Issue 2 , March 2009

  Applying two-phase flows improves heat transfer rate which is an important objective in most of applications. Due to environmental concerns and corresponding regulations, carbon dioxide ( ), naturally exists in the atmosphere, has been reintroduced as a possible replacement for the most of commonly used ...  Read More

4. Application of the Inverse Heat Conduction Method in Identifying a Cavity Inside Materials

MohamadMehdi Mizanadl; Mohsen Dashti; Mahmoud Khodadad

Volume 2, Issue 2 , March 2009

    In present paper, the inverse problem of cavity identification, i.e. determining the location and geometric shape of a cavity inside a two dimensional elastic body using temperature measurements obtained by performing a simple heat conduction test is investigated. The Boundary Element Method (BEM) ...  Read More

5. Analysis and Optimization of Reducing Steady State Time for Heating Systems

Farhad Talebi; Sayed Mehdi Sayed Nasrollah; Fatemeh Yousefi

Volume 2, Issue 2 , March 2009

  Present paper is a result of consideration in reducing steady-state time of heating systems. For this purpose one should study boundary condition of the system until steady state condition. In the research, a laboratory heating system was considered using numerical simulation and the numerical results ...  Read More

6. Vibration Analysis and Design of Dynamic Absorber in a Vertical Drilling Machine

MohamadReza Elhami; Mojtaba Heydari

Volume 2, Issue 2 , March 2009

  One of the main factors in poor performance of machine tools is undesirable vibrations. Unbalancing in rotary elements of machine tools cause induced vibration in machine head that influences on precision of processing material. The work presented in this paper is intended to resolve this problem. In ...  Read More

7. Dynamic Analysis and Path Control of a Snake Like Robot

Navid Negahbani; Mostafa Ghayour

Volume 2, Issue 2 , March 2009

  In this paper a modular wheel less snake-like robot by considering viscous friction is modeled. The motion equations of the robot are derived. Then by imitating a real snake motion, the robot is controlled on the way that tracks the predefined trajectory. The controller controls the center of mass and ...  Read More

8. Analytical Solution and Simulation of Flexible Joint in Thrust Vector Control System under Bending

Ebrahim Harirbafan; MOhsen Mohseni Shakib; AliAkbar Karimi; Mojtaba Heydari

Volume 2, Issue 2 , March 2009

  Flexible joint has the most critical role in Thrust Vector Control (TVC) solid fuel rockets. In this paper, a new analytic method for calculation of stiffness of spherical Elastomer-Metal joint by the theory of linear elasticity and Velasof Kantorowicz analytic method is developed. Velasof Kantorowicz ...  Read More