Volume 15 (2022)
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 2 (2008-2009)
Volume 1 (2007-2008)
1. Design, Modeling and Manufacturing a New Robotic Gripper with High Load Bearing Capability and Robust Control of its Mechanical Arm

vahid Boomeri; Hami Tourajizadeh

Volume 14, Issue 1 , March 2021, Pages 1-17


  In this paper, a new robotic gripper is proposed and modeled which is able to bear a high amount of load and it can be used as the claws of climbing robots. As the climbing robots are usually heavy and their configuration should be kept in height against the gravity, firm grippers with no slippage possibility ...  Read More

2. Comparative Study of LS-SVM, RVM and ELM for Modelling of Electro-Discharge Coating Process

Morteza Taheri; Nader Mollayi; Seyyed Amin Seyyedbarzani; Abolfazl Foorginejad; Vahide Babaiyan

Volume 14, Issue 1 , March 2021, Pages 19-32


  The Electro-discharge coating process is an efficient method for improvement of the surface quality of the parts used in molds. In this process, Material Transfer Rate (MTR), an average Layer Thickness (LT) are important factors, and tuning the input process parameters to obtain the desired value of ...  Read More

3. Evaluation of ANN and ANFIS Methods in Study of the Motion of a Bubble in A Combined Couette-Poiseuille Flow

Morteza Bayareh; Amireh Nourbakhsh

Volume 14, Issue 1 , March 2021, Pages 33-42


  The equilibrium position of a deformable bubble in a combined Couette-Poiseuille flow is investigated numerically by solving the full Navier-Stokes equations using a finite-difference/front-tracking method. The present approach is examined to predict the migration of a bubble in a combined Couette-Poiseuille ...  Read More

4. Hole-flanging of 2205 Dual-Phase Steel using Incremental Forming Process

Amir H. Roohi; Seyed Jalal Hashemi

Volume 14, Issue 1 , March 2021, Pages 43-49


  In this study, hole-flanging of a dual-phase steel sheet is conducted using incremental forming approach. In this process, a hole with a certain diameter is pre-cut on a sheet. Then, this hole is transformed into a cylindrical flange shapes, by contacting the forming tool with the hole edges. During ...  Read More

5. Investigation of the Stability of the Ball and Beam by the PID Controller

Mojtaba Hadipour; Ali Hosseinzadeh; Mohsen Sadidi

Volume 14, Issue 1 , March 2021, Pages 51-58


  The purpose of this research is to construct and investigate the stability of the ball and beam control system with PID coefficients derived from the simulation and compare them. In this research, by first obtaining the mathematical model of the mechanical system and its simulation, the best PID coefficients ...  Read More

6. Modal Analysis of Complex Structures via a Sub-Structuring Approach

Vahid Heydari; Mohammd Ahmadi Balootaki; Mohammad Orak; Mehdi Salehi

Volume 14, Issue 1 , March 2021, Pages 59-71


  In this paper, the problems arising from determining the modal properties of large and complex structures are investigated. For this purpose, the free interface component mode synthesis method has been used. In the following, Singular-Value Decomposition (SVD) is applied as a powerful mathematical tool ...  Read More

7. Analytical and Numerical Study of Pre-Stress Effect in Piezoelectric Sandwich Type Ultrasonic Transducer

Hamidreza Nadri; Mahdi Shaban; Abbas Pak

Volume 14, Issue 1 , March 2021, Pages 73-81


  In this paper, the effect of pre-stress condition on the resonance frequency of the transducer is studied by using numerical and analytical methods. To compare the obtained results, two sandwich-type transducers with nominal frequency of 25 kHz and 30 kHz are considered. Experimental determination of ...  Read More

8. Design and Analysis of Bicycle Helmet Made of PETg and ABS with Honeycomb Structure Against External Impacts using Abaqus Software

sajjad pakzad; ahad shah hoseini; Maryam Dehghani; amir bahador khalkhali

Volume 14, Issue 1 , March 2021, Pages 83-90


  The bicycle helmet has a significant role in reducing and preventing impact because of reducing the deceleration of the skull, spreading the area over which the forces of the impact reach them and preventing direct contact between the skull and the impacting object. Honeycomb structure, due to its elastic ...  Read More

9. Effect of using a Dynamic Absorber On Vibrations of an Opposed-Piston Ultralight Aircraft Engine

Mohammad Reza Najafi; Saied Mahjoub Moghadas; Mojtaba Moradi

Volume 14, Issue 1 , March 2021, Pages 91-99


  In this paper, vibrations reduction of piston engine of ultralight aircrafts was studied with considering a combination of experimental, analytical and numerical methods. Analytical equations of dynamic absorber were obtained. Afterward, experimental test was used to determine the system torque. Due ...  Read More

10. Mechanical Buckling of Circular Orthotropic Bilayer Nanoplate Embedded in an Elastic Matrix under Radial Compressive Loading

M. Ahmadpour; M.E. Golmakani; M.N. Sadraee Far

Volume 14, Issue 1 , March 2021, Pages 101-113


  This article investigates the buckling behavior of orthotropic annular/circular bilayer graphene sheet embedded in Winkler–Pasternak elastic medium under mechanical loading. Using the nonlocal elasticity theory, the bilayer graphene sheet is modeled as a nonlocal orthotropic plate which contains ...  Read More

11. Dynamic Analysis of Carbon Nanotube-Reinforced Multilayer Composite Plates

Jamshid Ebrahimi; Jafar Eskandari Jam; Reza Azarafza; Mohsen Heydari Beni; Majid Eskandari Shahraki

Volume 14, Issue 1 , March 2021, Pages 115-128


  The paper studied the analysis of vibrations of rectangular carbon nanotube-reinforced composite plates. To this end, a three-layer nanocomposite plate - two layers with the targeted distribution of carbon nanotubes as FG-X at the top and bottom and a layer without an amplifier in the middle of the plate ...  Read More