Iranian Journal of Science and Technology, Transactions of Mechanical Engineering

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Investigation of the Thermoelastic Behaviour of Magneto-Thermo-Viscoelastic Rods Based on the Kelvin-Voigt Viscoelastic Model
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - - Trang 1-17 - 2023
Jia Zhang, Yongbin Ma
In the classical linear viscoelastic framework, materials exhibit more significant creep and stress relaxation at high temperatures, making thermoviscoelastic analyses of materials essential in the design of some polymers. In this paper, a new generalized thermo-viscoelastic model is developed by introducing the Kelvin-Voigt theory of viscoelasticity, and the transient response of an elastic rod u...... hiện toàn bộ
An Efficient Estimation of Fluid–Structure Interaction in Blocked L-shaped Pipelines
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering -
Faeze Khalighi, Ahmad Ahmadi, Alireza Keramat, Arris S. Tijsseling, Aaron C. Zecchin
Experimental Study on the Effect of Tubercle on Aerodynamic Characteristics of Swept Wings at low Reynolds Number
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - Tập 46 - Trang 783-792 - 2021
Jeena Joseph, A. Sathyabhama
Inspired from the Humpback whale flipper, airfoils and wings incorporated with sinusoidal leading edge are much studied for their improved aerodynamic characteristics like delayed stall and higher lift in post-stall region. In this work, the performance of different swept wings equipped with leading edge tubercles is studied by comparing with their baseline models at a low Reynolds number of 100,0...... hiện toàn bộ
Comparative Experiments on a Self-priming Pump Delivering Water Medium During Rapid and Slow Starting Periods
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - Tập 45 - Trang 1007-1019 - 2020
Yu-Liang Zhang, Zu-Chao Zhu, Yan-Juan Zhao, Jun Wu, Feng-Lin Zhou
This paper presents an experiment on the transient hydraulic performance of a self-priming pump for transporting clear water under fast and slow start-up states. In the experiment, five typical working conditions are set, and the evolution of preset rotating speed increases linearly. The similarities and differences between fast and slow start-up states are analyzed in detail. Results show an over...... hiện toàn bộ
A Chattering-Free Finite-Time Robust Synchronization Scheme for Uncertain Chaotic Systems
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - Tập 43 - Trang 995-1003 - 2018
Siamak Heidarzadeh, Hassan Salarieh
This paper addresses a simple chattering-free and finite-time convergent robust synchronization scheme for a general class of disturbed master and slave chaotic systems. Unlike traditional variable structure control schemes, the proposed controller does not directly include a switching function, and chattering is avoided. The term including switching function is the input of a low-pass filter wher...... hiện toàn bộ
Configuration Synthesis of Generalized Mechanism Based on Screw Theory
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - - 2019
Congcong Chen, Tuanjie Li, Yaqiong Tang
Three-Dimensional Free Vibration Analysis and Critical Speed of Pressurized Rotating Functionally Graded Cylindrical Shells
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - Tập 43 - Trang 113-126 - 2017
Mostafa Talebitooti
This paper presents an approximate solution for the free vibration analysis of rotating functionally graded cylindrical shells based on the three-dimensional theory, using layerwise theory. Equations of motion are derived by applying Hamilton’s principle. In order to accurately account for the thickness effects, the layerwise theory is used to discretize the equations of motion and the related bou...... hiện toàn bộ
Process Parameters Optimization of the Explosive-Welded Al/Cu Bimetal in the Incremental Sheet Metal Forming Process
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - Tập 43 Số S1 - Trang 945-956 - 2019
A. Gheysarian, Mohammad Honarpisheh
Effects of the Synchronous Variation of the Static and the Kinetic Friction Coefficients on Stick–Slip Vibration of Drillstring
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - Tập 43 - Trang 275-283 - 2018
Liping Tang, Xiaohua Zhu, Jinhe Li
Stick–slip vibration (SSV) in oilwell drillstring presents one of the primary reasons of drilling performance deterioration as it reduces rate of penetration, aggravates tool failures, reduces wellbore quality, and increases drilling cost. Although a number of research works have focused on this subject, there is not a commonly accepted explanation of its cause yet. In our previous work, influence...... hiện toàn bộ
Reconstruction of Absorption and Scattering Coefficients in a One-Dimensional Parallel Plane Variable Index Media
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering - Tập 47 Số 2 - Trang 433-452 - 2023
A. Dehghanian, S. M. Hosseini Sarvari
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