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Bifurcation Characteristics Analysis and Control of Electromechanical Transmission System in Shearer

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2021; 45 (3)

To reveal the mechanism of the friction torque on the system stability, the system nonlinear coupled dynamic model is established based on the Lagrang......

The Velocity Variation Characteristics of the Flow Field and the Related Structural Parameter Optimization of the Direct Jet Nozzle

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, ; ()

The atomization of nozzles plays a crucial role in improving the efficiency of spraying for dust suppression. According to the inertia collision theor......

Study on Noise Characteristics of Marine Centrifugal Pump Under Different Cavitation Stages

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, ; ()

Based on judging the different stages of cavitation through high-speed photography experiments, this paper presents a strategy for analyzing the varia......

Free Vibration and Transmission Response Analysis for Torsional Vibration of Circular Annular Plate

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, ; ()

In this paper, free vibration and transmission response for the torsional vibration of circular annular plate are presented. To the author's knowledge......

Vibration Feature Evaluation of the Motor-Gear System with Gear Tooth Crack and Rotor Bar Error

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, ; ()

The high speed and high power density electromechanical system for the electric vehicle is urgently required to meet stricter emission regulation and ......

Analysis of the Screw Flight Wear Model and Wear Regularity of the Bulk Transport in Screw Ship Unloader

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, ; ()

The screw flight, spiral blade welded on the axial cylinder, is the core component of the screw ship unloader and can be seriously worn by the materia......

Dynamic Illustration of Stranded Wire Helical Springs Using a Modified Bouc-Wen Model

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (1)

Stranded wire helical spring exhibits a particular dynamic behavior of nonlinear asymmetry hysteretic characteristic due to its special structure. The......

Machining Stress Analysis and Deformation Prediction of Connecting Rod Based on FEM and GRNN

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (1)

The unequal distribution of residual stress caused by incorrect machining processes will probably distort the machined connecting rods of the diesel e......

Investigation of Elastic Parameters of Three-Dimensional Full Five-Directional Braided Composite Materials

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (1)

The aim of this paper is to investigate the material constants of three-dimensional full five-directional (3Df5d) braided composites. Based on the yar......

Refined Beam Elements for the Free Vibration Analysis of Stepped Shafts With and Without Transition Area

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (1)

Investigation of the free vibration of stepped shafts with and without transition area is presented in this paper. The refined one-dimensional beam th......

Design and Experiments of a Galfenol Composite Cantilever Beam-Driven Magnetostrictive Micro-gripper

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (1)

The work presents a novel magnetostrictive micro-gripper driven by iron-gallium alloy (Galfenol) composite cantilever beam. The design and operation p......

Influence of Restraint Load on Injury Biomechanics in Frontal Impact Based on Dummy Test

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (4)

Restraint system, especially the seatbelt, is the critical load source of the chest injury. The consequence has become the crucial part of the traffic......

Effect of the PTO Damping Force on the 2D Oscillating Buoy Wave Energy Converter Integrated into a Pile-Restrained Floating Breakwater

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (4)

The aim of the study is to evaluate the parametric effect of a power take-off (PTO) system on an integration system of an oscillating buoy wave energy......

Free Vibration Analysis for a Tactile Feedback Device of a Piezoelectric Ciliary Body Beam

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (4)

A tactile feedback device of a piezoelectric ciliary body beam is presented. In order to investigate the relationship between the sizes of the ciliary......

Effects of Drill String Length on Stick-Slip Oscillation of the Oilwell Drill String

期刊: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING, 2020; 44 (2)

It has been demonstrated by numerous field data that the stick-slip phenomenon tends to appear in deep wells. However, the explanation for this phenom......

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