مرور Volume 9, Issue 3 بر اساس تاریخ انتشار
در حال نمایش موارد 1 - 8 از 8
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Development of Process Model for Optimal Selection of Process Parameters for Geometric Tolerances and Surface Roughness in Stereolithography
(Islamic Azad University Majlesi Branch, 2016-09-01)The accuracy of stereolithography (SL) product is vital for meeting the intended functional applications. The parameters like layer thickness, hatch spacing, hatch overcure contribute significantly to the accuracy of the ...
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Injection into Orbit Optimization using Orthogonal Polynomials
(Islamic Azad University Majlesi Branch, 2016-09-01)In this study, the problem of determining an optimal trajectory of a nonlinear injection into orbit problem with minimum time was investigated. The method was based on orthogonal
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Severe Plastic Deformation of Nanostructured Cu-30%Zn Tubes at Increased Temperatures
(Islamic Azad University Majlesi Branch, 2016-09-01)Severe plastic deformation (SPD) methods were developed for producing of metals and alloys with ultrafine grained (UFG) microstructures having high strength. Parallel tabular channel angular pressing (PTCAP) as a noble ...
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Design, Manufacture and Environmental Tests of Battery Pack for Spacecraft Freights
(Islamic Azad University Majlesi Branch, 2016-09-01)The satellite battery pack is one of the important and vital parts that are required conducting special design with multiple capabilities. Some parameters like the minimum weight, lack of outgassing of parts, avoiding from ...
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Investigating the Effects of Expansion Equal Channel Angular Extrusion (Exp-ECAE) on Dynamic Behavior of AA7075 Aluminum Alloy
(Islamic Azad University Majlesi Branch, 2016-09-01)Expansion equal channel angular extrusion (Exp-ECAE) is a severe plastic deformation (SPD) operation for processing bulk materials. In the current study, AA7075 Al was SPD-processed by expansion equal ...
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Kinematic Synthesis of a Novel Parallel Cable Robot as Artificial Leg
(Islamic Azad University Majlesi Branch, 2016-09-01)Accommodation of mechanism with human being's physical characteristics creates the possibility of safe and efficient interaction between human being and robot. Regarding the fact that amputation of a limb in human beings ...
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Experimental Study and Finite Element Simulation of Residual Stress in Welded Sections of Steel P91 Pipes with Multi-pass Welding
(Islamic Azad University Majlesi Branch, 2016-09-01)All the producing and assembling processes exert residual stress on the pieces that may lead to structural failure. Therefore, calculating the residual stress in such structures has been common in recent years. In this ...
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Trajectory Path Planning of Cable Driven Parallel Manipulators, Considering Masses and Flexibility of the Cables
(Islamic Azad University Majlesi Branch, 2016-09-01)Cable driven parallel manipulator (CDPM) is a special class of parallel manipulator in which the rigid extensible links are replaced by actuated cables. It is necessary to take into consideration the cable dynamics, i.e.; ...



