مقدمة في المجلة
علمی
مجله پژوهش و کاربرد در مکانیک از سال ٨۷ در دانشگاه آزاد اسلامی واحد تهران جنوب تاسیس گردید و از همان سال مشغول به فعالیت شد. هیأت تحریریه مجله متشکل از جمعی از اساتید با سابقه و صاحب اشتهار علمی از دانشگاه های مختلف کشور می باشند که با دقت نظر و ارزیابی دقیق تلاش نموده اند که مقالات اصیل و با محتوای علمی معتبر و مفید را در این مجله به چاپ برسانند.
این مجله با سابقه درخشان 13 سال و با افراد مجرب در کادر اجرایی در زمینه گرایشهای مکانیک آماده دریافت و پذیرش مقالات شما است.
مقالات ارسالی در زمینه های کلاسیک مکانیک مانند مکانیک سیالات، مکانیک جامدات، خودرو، ساخت و تولید، هوافضا، و همچنین زمینه های نو و پیشرفته مکانیک مانند بیو و نانو، کنترل و مکاترونیک، مواد و سازه های هوشمند، مواد و سازه های کامپوزیت و مطالعات انرژی خصوصا انرژیهای تجدیدپذیر و پایدار از محققین، دانشمندان و دانشجویان محترم پس از بررسی به چاپ می رسد.
در این مجله با فرایند داوری سریع یکماه، نتایج کار محققین، دانشگاهیان و صنعتگران در قالب مقالات علمی، پژوهشی (تحلیلی، عددی، تجربی)، بازنگری (مروری)، ترویجی و یادداشت فنی و تخصصی در فاصله زمانی بسیار کوتاه به چاپ میرسد.
هدف اصلی مجله اطلاع‌رسانی و نشر دانش روز مهندسی مکانیک و زمینه های وابسته و کاربرد آنها و ثبت نتایج ارزنده محققین و دانشمندان در فضای مناسب علمی است.
مجله به صورت فصلنامه و به زبان انگلیسی در ابتدا آغاز به فعالیت نمود و با مجوز کمیسیون تخصصی نشریات علمی معاونت علوم، مهندسی و کشاورزی سازمان مرکزی دانشگاه آزاد اسلامی ادامه فعالیت این نشریه با نام پژوهش و کاربرد در مکانیک و با دو زبان فارسی و انگلیسی در تیرماه 99 مورد تایید قرار گرفت.
لذا محققین محترم می توانند مقالات را به زبان فارسی یا زبان انگلیسی بدلخواه خود ارسال دارند. این مجله در نظر دارد تا شماره جدید خود را در اخر دیماه ۹۹ به چاپ برساند.
لذا از کلیه پژوهشگران، اساتید گرانقدر دانشگاه‌ها، دانشجویان تحصیلات تکمیلی و مهندسان شاغل در صنعت درخواست می‌گردد که تا مقالات علمی تحقیقاتی خود را در قالب معمولی تک ستونی و شکلها و جداول در داخل متن به صورت فایل ورد و فایل پی دی اف در قالب مقاله ساده (عنوان، نام نویسندگان و آدرس، چکیده، کلید واژه، مقدمه، روش کار، نتایج و بحث، نتیجه گیری و مراجع) به ایمیل رسمی مجله ارسال نمایند.
با تشکر
هیئت تحریریه مجله
پژوهش و کاربرد در مکانیک
أحدث المقالات المنشورة
المقالات الأكثر مشاهدة
-
حرية الوصول المقاله
1 - Static, dynamic and free vibration analysis of functional graded porous plates based on first-order shear deformation theory
کامران عاصمی سعید خبری مسعود باباییالعدد 4 , المجلد 10 , پاییز 2020in this study, static, dynamic and natural frequency responses of the functionally graded saturated porous plate have been investigated. Two types of distributions including symmetric nonlinear distribution of porosity and asymmetric nonlinear distribution of porosity i أکثرin this study, static, dynamic and natural frequency responses of the functionally graded saturated porous plate have been investigated. Two types of distributions including symmetric nonlinear distribution of porosity and asymmetric nonlinear distribution of porosity in the thickness direction of the plate have been considered. First-order shear deformation theory (FSDT) and Lagrange method are used to model the problem. Finite element and Newmark direct integration methods are used to solve the governing motion equations in time and space domains, and then the effect of different parameters such as porosity and Skempton coefficients, and two different types of porosity distribution, length to thickness ratio and boundary conditions on static and time responses, and natural frequencies of functionally graded saturated porous plate have been investigated. Results show that by increasing the Skempton coefficient will always reduce the displacement and amplitude of vibration . Also, increasing the porosity coefficient will increase the displacement تفاصيل المقالة -
حرية الوصول المقاله
2 - An overview of the behavior of sandwich panels with Auxetic core under impact load
جوانشیر لطفیالعدد 2 , المجلد 10 , بهار 2020 -
حرية الوصول المقاله
3 - Studying the anatomy and the physiology of the respiratory system and investigating the HME filters of the ventilator device
سمیه یعقوبی حسین محمدی جوزدانی بهزاد کریم خانیالعدد 4 , المجلد 10 , پاییز 2020In this study, first the anatomy and physiology of the respiratory system is reviewed, then the filters of the ventilator device are investigated. In the continuation of the research, after examining the above cases, a case similar to the HME filter of the ventilator de أکثرIn this study, first the anatomy and physiology of the respiratory system is reviewed, then the filters of the ventilator device are investigated. In the continuation of the research, after examining the above cases, a case similar to the HME filter of the ventilator device will be designed, but with some changes in appearance in SolidWorks software. Finally, the existing stress analyzes are performed on the filter and in terms of case material is examined. Then in terms of fluid flow, which is usually oxygen, and as will be seen in the new design, the oxygen speed in the device will increase and there will be less steam, as well as excess water will be released, which will be examined in this study. Eventually thermal analysis on the filter is performed and it is illustrated increasing g the temperature about the filter cannot effect on the filter’s performance because it falls rapidly. تفاصيل المقالة -
حرية الوصول المقاله
4 - types of electric cars; Features, fuel cost comparison, ownership and emissions and challenges
نیما راسخ صالح حسین افشارالعدد 4 , المجلد 13 , پاییز 2024 -
حرية الوصول المقاله
5 - Exploration of the Physical and Mechanical Properties of Thianthrene Nanostructures by Using Scigress
Hassan Ghalami Bavil Olyaee Husam Jawad Oraibi Altaieالعدد 4 , المجلد 13 , پاییز 2024Thianthrene and its derivatives have attracted considerable attention in the realm of organic semiconductors owing to their intriguing electronic and optical properties. This paper offers a comprehensive examination of Thianthrene, concentrating on its principal feature أکثرThianthrene and its derivatives have attracted considerable attention in the realm of organic semiconductors owing to their intriguing electronic and optical properties. This paper offers a comprehensive examination of Thianthrene, concentrating on its principal features, including its highest occupied molecular orbital (HOMO) at -8.03 eV, lowest unoccupied molecular orbital (LUMO) at -0.46 eV, ultraviolet (UV) absorption spectrum, and infrared (IR) spectroscopy data. The inquiry, utilizing data derived from Scigress, unveils crucial insights into the electronic structure and spectroscopic traits of Thianthrene and its derivatives. The UV absorption spectrum at 160 nm provides glimpses into the optical attributes and potential applications in optoelectronic devices like OLEDs. Moreover, the IR spectroscopy data illuminates the molecular vibrations and structural attributes of Thianthrene, facilitating the understanding of its chemical reactivity and potential strategies for functionalization. Overall, the results underscore Thianthrene's significance as a promising contender for organic semiconductor materials and highlight avenues for further exploration and development in this domain. Additionally, the ultimate heat of formation of Thianthrene is computed using computational modeling techniques offered by Scigress, yielding a value of 56.4736 kcal/mol. This calculated heat of formation furnishes critical thermodynamic data, contributing to a more profound understanding of Thianthrene's stability and reactivity in various chemical environments. تفاصيل المقالة -
حرية الوصول المقاله
6 - Investigation of blood flow as third order non-Newtonian fluid inside a porous artery in the presence of a magnetic field by an analytical method
مهران خاکی جامعی محمدرضا سیجانیالعدد 2 , المجلد 9 , بهار 2017In this research various nonlinear fluid models have been introduced and the balloon movement in the porous arteries, including third-order non-Newtonian fluid, is described under the influence of the magnetic field. In order to solve the nonlinear equations governing t أکثرIn this research various nonlinear fluid models have been introduced and the balloon movement in the porous arteries, including third-order non-Newtonian fluid, is described under the influence of the magnetic field. In order to solve the nonlinear equations governing the desired artery, an analytical method of approximation collocation and least squares are proposed. The effect of various parameters such as Brownian motion, thermophoresis and pressure gradient are shown on the distribution of velocity and fluid temperature. According to the studies, Increase the thermophoresis parameter and Brownian motion are increases the temperature. Also, by increasing the values of the electromagnetic parameter, fluid velocity decreases. Although many papers have investigated the flow of intra-arterial blood in the presence of MHD, it is clear that the governing equations of these articles unfortunately reveal obvious errors by extracting the governing equations. In this paper, the equations have been revised and corrected. It can also be seen by increasing the thermophoresis and Brownian parameters, increases the temperature of the nanofluid, but reduces velocity of the nanofluid and also increase the porosity parameter, the velocity of fluid flow between the balloon and the vessel wall decreases. تفاصيل المقالة -
حرية الوصول المقاله
7 - Increasing Total Output Efficiency of The Photovoltaic Module by Using Photovoltaic - Thermal Collector
سید امیر به مونسیالعدد 2 , المجلد 10 , بهار 2020solar radiation increases the surface temperature of the photovoltaic module (PV). This increase in temperature reduces the electrical efficiency and useful life of photovoltaic cells. One way to reduce the temperature of photovoltaic modules is to reduce the surface te أکثرsolar radiation increases the surface temperature of the photovoltaic module (PV). This increase in temperature reduces the electrical efficiency and useful life of photovoltaic cells. One way to reduce the temperature of photovoltaic modules is to reduce the surface temperature of the module by circulating fluids such as water or air. Devices that operate on this basis are called combined photovoltaic - thermal collectors (PV/T). Combined photovoltaic-thermal collectors are usually made by integrating a photovoltaic module and a heat collector to prevent direct contact of the coolant fluid with the module surface. The heat absorber is very important due to the heat dissipation from the module surface to the fluid, so the thermal and electrical performance of a PV/T collector depends on the proper design of the absorber. In this research, first the classification and different structures of PV/T collectors were investigated. Then, thermal and electrical efficiency of nine practical of PV/T collector were theoretically compared with each other. Then the electrical efficiency of sheet and tube type of PV/T collector was tested by sample PV module. According to the results of this study, if the inlet fluid temperature is low, the PV/T collector will have a higher total efficiency compared to the separate heat collector or PV module. تفاصيل المقالة -
حرية الوصول المقاله
8 - Dynamic Analysis of Hybrid Robot 3PRS-RRP
علیرضا رمضانی فر حسن ظهور علی اکبر موسویانالعدد 1 , المجلد 1 , زمستان 2009In this article a new and an accurate method for kinematic and dynamic analysis of a parallel robot 3PRS and a hybrid robot (parallel and serial) 3PRS-RRP are presented, which is based on the Denavit-Hartenberg transformation matrix algebra. First, basic properties of v أکثرIn this article a new and an accurate method for kinematic and dynamic analysis of a parallel robot 3PRS and a hybrid robot (parallel and serial) 3PRS-RRP are presented, which is based on the Denavit-Hartenberg transformation matrix algebra. First, basic properties of various kinds of robots are compared, and then the Denavit-Hartenberg parameters and their table are introduced. Next, the methods of forward and inverse kinematic are explained and system dynamic equations are obtained by Lagrange method. Finally for defined sizes and with imagination of a rotational movement for the center point of the moving plate of parallel robot and two input kinematic for serial robot, a few kinematic and dynamic results for parallel and serial robot by Newton and Lagrange methods are presented for singularity consideration. Generally, the forward kinematic solution of parallel robots and inverse kinematic solution of serial robots are difficult. For these hybrid robots, it would be better to use parallel robots, which have linear movement on the moving plate in the forward mode to increase the space and strength, or the two robots be time independent. تفاصيل المقالة -
حرية الوصول المقاله
9 - Effect of corrugated core on low-velocity impact response of sandwich panels with layer-wise graded foam core and smart face sheets
فرنام حیدری پبدانیالعدد 2 , المجلد 10 , بهار 2020In the discussion of impact on composite structures, increasing the stiffness of structural procedures is one of the most important strategies which is taken to increase the impact resistance of composite structures. In this study, the effect of corrugated core on low v أکثرIn the discussion of impact on composite structures, increasing the stiffness of structural procedures is one of the most important strategies which is taken to increase the impact resistance of composite structures. In this study, the effect of corrugated core on low velocity impact response of sandwich panels with smart face sheets and layer-wise graded foam core was investigated. In this research, foam cores with different densities are stacked up and an aluminum corrugated core are the two different character of core and graphite / epoxy which are reinforced by memory alloy wires (SMA) are considered as face-sheets. Sandwich structures with different configurations were subjected to low-velocity impact and the results showed that the addition of corrugated core increased the impact resistance of the structure and increased the contact force of the impact. تفاصيل المقالة -
حرية الوصول المقاله
10 - Semi-Active Suspension Control Based on Bingham Modified Model Using Prototyped Twin-Tube MR Damper
سید حمید موسویالعدد 1 , المجلد 10 , زمستان 2020In this article, the prototyped magnetorheological (MR) damper with internal solenoid based on Bingham modified model of MR damper is presented and experimentally tested on a real passenger car. The rolling-lobe type of the existing air spring was replaced with a cylind أکثرIn this article, the prototyped magnetorheological (MR) damper with internal solenoid based on Bingham modified model of MR damper is presented and experimentally tested on a real passenger car. The rolling-lobe type of the existing air spring was replaced with a cylinder-tube type and it was integrated with the MR dampers in order to save the mounting space. The forces generated by the semi-active dampers during valve operation are also measured. In this paper, to use Bingham modified model, an eleven degrees of freedom (DOFs) suspension system (four for four wheels, three for the body displacement and its rotations and the last four for passengers) has been modeled. The results of experiment are analyzed for comfortable driving and road holding. Comparisons between the results from the vehicle model and the experimental were good and acceptable. The most important features of the fabricated MR damper are low cost of production and simple structure. تفاصيل المقالة
