Download more than 100 examples of thesis, proposal and project topics about nonlinear stiffness in editable WORD file format at undergraduate, graduate and doctoral levels for use and reference in research, articles, theses, student and academic projects.
Presented to obtain a master's degree in the field of mechanical engineering-applied design orientation. Abstract In this research, we investigated the free vibration of a cracked beam and found its natural frequencies. In the first part, by using the open crack model, by modeling the cracked part as a beam-shaped element and satisfying the boundary conditions, we obtained the ...
Dissertation for receiving a master's degree in the field of structural oriented civil engineering, 2013, although the construction and design methods of structures have expanded over the years, but still the effect of earthquakes is one of the most important.
Thesis of master's degree in civil engineering, soil and foundation mechanics orientation, September 2019, abstract: analysis of dynamic interaction between soil and structure (due to the mutual effect of the structure and its retaining soil on each other), D
Dissertation for Master's Degree in Civil Engineering, Marine Structures, Abstract: Tension-based platforms are among economic marine platforms for use in deep waters. The correct prediction of the platform's dynamic response to environmental loads is very important in its economic and safe design. In this research, the dynamic behavior of the tension base platform under the ...
Dissertation to receive M.Sc degree in civil engineering, structural orientation. Abstract: One of the ways to strengthen the building against lateral loads is the use of a wind system (convergent or divergent). The increasing use of steel braces to deal with earthquake forces requires that the seismic performance of these types of systems be given more attention. The common ...
Dissertation for Master's Degree in Civil Engineering, Structures, Abstract: This thesis is the results of a numerical and parametric study on the effect of reinforcing reinforced concrete shear wall with FRP composite and applying the results of the finite element method. The finite element program is compared and calibrated against experimental data. Then, the numerical ...
Dissertation for master's degree in civil engineering, structural orientation. Abstract: Today, in earthquake-prone countries, it is recommended to use a variety of energy-depleting tools in order to dissipate the energy of earthquakes on the structure. One of these tools is rotational friction dampers. Because the current regulations do not provide a value for the coefficient ...
Dissertation for Master's Degree in Civil Engineering - Structural Orientation Abstract: The most basic goal in the seismic design of structures is to prevent the structure from collapsing during severe earthquakes, which is the basis of the governing theory of seismic behavior, the result of investigating the nonlinear behavior of the structure during an earthquake and the ...
Master's Thesis in Mechanical Engineering (Applied Design) Abstract of Gas Turbine Rotor Stress Analysis Using Continuous Damage Mechanics In this thesis, Lometer's unified model based on continuous damage mechanics is used to model the stress-strain behavior of a gas turbine rotor sample. The unified damage law, which is used to model creep-fatigue interaction, is based on the ...
Master's Thesis in Electrical-Control Engineering Abstract In this article, diagnosis, reconstruction and fault prediction of nonlinear systems with uncertainty are investigated. The diagnostic criterion is the residual signal calculated from the difference between the system output and a sliding mode viewer. The idea of ??sliding mode is to compensate the effect of ...
Master's thesis in the field of civil engineering, structural orientation. Abstract In this study, the evaluation and comparison of nonlinear and numerical analysis of deep reinforced concrete beams with openings without reinforcement with deep concrete beams with openings reinforced with FRP sheets and deep reinforced concrete beams without openings by Abaqus finite element ...
Master's thesis in the field of civil engineering, soil and foundation, today, due to the progress of the tunneling industry, the need to analyze and design underground structures in rocky environments is felt more than in the past. Although there are many numerical and practical software available in this field, none of them are complete and perfect in all fields, and each of ...
To obtain a master's degree in the field of civil engineering - structural orientation. Abstract: The subject of this research is to investigate the level of performance and accuracy of methods based on non-linear static analysis and the need to retrofit steel buildings with a dual system of bending frame with cross brace and convergent 7-shaped brace designed with the 2800 Iran ...
Master's thesis in the field of road, building and environmental engineering - hydraulic structures Abstract In this research, nonlinear wave differential equations are solved by the local RBF-DQ numerical method. These differential equations are in the form of Laplace's equation (as a governing equation) and nonlinear boundary conditions on the free surface; The basis of the ...
Master's Thesis in Mechanical Engineering, Applied Design, Abstract In this research, an analytical solution is presented to show the size dependence and the effect of temperature difference on nonlinear free vibrations and post-buckling behavior of microtubes containing current. Based on Euler-Bernoulli model, strain gradient theory, Couple's stress theory and von-Carman ...
Dissertation for Master's Degree in Mechanical Engineering (Applied Design) Abstract: Electromechanical micro and nano systems have been noticed due to their distinctive features and unique characteristics, mainly in the two fields of sensors and sensors, in various sciences such as mechanics, aerospace and medicine. Electrostatic stimulation is one of the simplest and most ...
Abstract: The design of output resistant static controller to achieve fuzzy tracking for nonlinear systems described by Takagi-Sugno T-S model. The subject of this thesis is related to the problem of designing output resistant static controller to achieve fuzzy tracking for systems with time delay and uncertainty that can be modeled by Takagi-Sugno (T-S) fuzzy modeling. The ...
The thesis for obtaining a master's degree in the field of mechanics, investigating and analyzing the free and forced vibrations of a multi-walled carbon nanotube placed in an elastic medium in order to achieve a clear mathematical understanding of the behavior of different walls of the nanotube under the influence of van der Waals forces and the elastic medium is one of the ...
Master's thesis in the field of mechanical engineering - applied design approach. Abstract: Identifying the stiffness and damping coefficients of a beam support. By: Majid Abedi. Supports and connections play a fundamental and important role in engineering structures. It is necessary to identify different support parameters. Stiffness and damping parameters are the most ...
Master's Thesis in Mechanical Engineering - Applied Design Abstract of elastoplastic analysis of thick-walled tanks made of targeted materials with linear kinematic stiffness behavior under cyclic loading, stress analysis and deformation of spherical thick-walled tanks made of subject materials under internal pressure loading and temperature difference are discussed in this ...
Dissertation for M.Sc Mechanical Engineering - Applied Design Orientation Abstract Bearings are widely used in various industries including automobile and aircraft industry. Therefore, it is important to check the bearings, therefore, in this research, the hardness matrix of the angular contact ball bearings has been investigated. In this research, the equations governing the ...
Dissertation for obtaining a master's degree in civil engineering. 2013 Winter Earthquake Abstract of earthquakes close to the fault due to having pulse type movement with a long period at the beginning of the record, including
Expert thesis Master of Civil Engineering, Structural Orientation, September 2013 Abstract Today, with the progress of science in the construction industry, many methods have been presented to improve reinforced concrete structures
Master's Thesis in Civil Engineering - Earthquake Engineering 1391 Abstract Structures with frames with coaxial braces are among earthquake resistant systems. These structures are widely
Dissertation for Master's Degree in Civil Engineering (M.Sc) Orientation: Structure Winter 2013 Abstract: Resilient construction of important government buildings, infrastructure facilities and vital arteries due to the increase
Dissertation for obtaining a master's degree in civil engineering – Spring 2014 structure trend, first chapter, general research 1-1- Introduction: Mostly structures for severe earthquakes and surface acceptance
Dissertation of master's degree in civil-structural engineering Abstract: Divergent bracing frames are considered earthquake-resistant systems for steel structures. These braces are from my difficulty
Dissertation of master's degree in structural engineering, February 2011 Abstract: In the optimal civil engineering structure construction for static loadings have been significantly developed. But, in
Dissertation of Master's Degree in Civil Engineering – Earthquake Engineering 2013 Abstract: Concrete beam and slab bridges with neoprene supports are among the most common highway bridges in the country.
Doctoral dissertation in civil engineering – Earthquake Engineering 2013 Abstract The inappropriate performance of columns in concrete buildings designed and built in the past years causes concern and attention to the amount of A
Dissertation for master's degree in civil-structural field winter 2012 Abstract In recent years, the number of buildings that have suffered damage due to the loss of their gravity-bearing members has increased. Therefore, it has become important to design structures so that they are resistant to progressive damage in addition to the effects of earthquakes. One of the factors ...
Master's Thesis in Civil Engineering - Structural Orientation, February 2013 Abstract: The performance of a building during an earthquake depends on many factors, as a result, predicting the seismic performance of structures should be considered either explicitly or implicitly as part of the design or evaluation. Predicting the seismic response of the structure is very ...
Faculty of Postgraduate Education, Department of Physical Education and Sports Sciences Thesis for receiving the Master's degree "".M.A"" specialization Pathology Abstract The aim of the present study is to investigate the relationship between the type of sleeping with lumbar lordosis and to provide corrective movements in boys aged 10 to 14 years of Islamabad Gharb city. For ...
Dissertation for Master's degree (M.Sc) in the field of electrical-power engineering. Abstract In this thesis, the design of a resistant controller in power electronic circuit breakers and its comparison with linear control methods have been examined. The main goal of research and development in this field is always to find the most suitable control method in order to implement ...
Master's Thesis in the field of electrical engineering- control, abstract assessment of the transient stability of power systems using the data of phasor measurement units, quick assessment of security in power networks in emergency situations and the occurrence of various errors, is a vital thing to prevent collapse and create nationwide outages. Therefore, the evaluation ...
Educational Department of Physical Education and Sports Sciences, Academic Thesis for Master's Degree Abstract The purpose of this study was to investigate the effect of ten days of ginger consumption on delayed muscle contusion in Langrod high school girls. For this purpose, 30 female high school students (average age 15-18 years, height 1.55±0.05 m, weight 53.9±5.83 kg, and ...
Dissertation for Master's Degree > Direction: Hydraulic Structures Abstract: One of the assumptions that is made to simplify the dynamic analysis of the existing weighted concrete dams is the uniformity of the foundation in terms of physical parameters such as modulus of elasticity and damping. This is despite the fact that, in practice, different geological conditions may ...
Master's Thesis (M.sc) Civil Engineering, Soil and Foundation Mechanics Abstract In this research, the stability of soil reinforced with geogrid located on an underground cavity was analyzed using plaxis software, and the effect of several factors such as the number of geogrid layers, the length of the geogrid layer, the stiffness of the geogrid layer, the optimal location of ...
Dissertation for receiving a master's degree in the field: civil engineering, orientation: structure. Abstract: In this paper, a new approach for optimal selection of acceleration maps and their scaling to perform dynamic time history analysis, to achieve the average response spectrum that has a suitable match and a small distance with the target spectrum and represents the ...
Master's Thesis in Civil-Structural Engineering Abstract In order to estimate the capacity of buildings, it will be much easier and less expensive to use static methods instead of incremental dynamic methods. Although the incremental dynamic method gives more accurate and closer answers to the real behavior of the structure, its high cost and time has increased the desire to use ...
Master's Thesis of Structures Abstract In the welding process, after a stage of cooling of the body, due to the uneven distribution of temperature, stresses remain in it, which are called residual stresses. To obtain these stresses, the temperature history of the object during the welding process must be available. For this purpose, first a thermal analysis is done to obtain the ...
Master's thesis in the field of civil engineering, structural orientation. Abstract: Investigating the effect of span length on bridge behavior under the simultaneous effect of horizontal and vertical components. Among all types of structures, bridges are one of the pillars of vital arteries that need to be used after an earthquake to provide access to hospitals, fire stations, ...
Dissertation for Master's Degree Abstract: Dealing with external forces such as earthquakes is one of the most important missions of civil engineers. In order to achieve this goal, the light metal frame system, which has advantages such as the possibility of industrial production, prefabrication and lightness, can be considered as a suitable alternative to traditional systems. ...
Dissertation for master's degree in the field of civil engineering, road and transportation, the abstract of asphalt failures is one of the problems that are the concern of road and transportation engineers today, and every year huge costs are spent on the maintenance and repair of asphalt roads. Many efforts have been made to increase the strength and life of asphalt, among ...
Dissertation for Master's Degree in Civil-Structural Engineering Abstract In our country, most of the structures and maybe all the conventional buildings are analyzed and designed independently, which means that these structures are mainly analyzed and designed by conventional software and considering a rigid or articulated support, and then the forces obtained at the base of ...
Master's Thesis of Information Technology Engineering, Information Systems Management, Abstract In today's world, due to the change in lifestyle, people are looking for a way to improve and improve their economic situation, one of the most important ways to improve their financial situation is to increase their income. One of the easiest ways is investment, which has different ...
Master's Thesis in Civil Engineering-Earthquake Abstract Using braces as a lateral resistance system in steel structures is one of the most common methods to withstand the forces caused by earthquakes. One of the weak points of this system is the compression resistance of the bracing member and its buckling as a result of reducing the member's load. Today, this problem has been ...
Dissertation of the master's degree in the field: Electrical Engineering - Power trend. Abstract Today, despite the wide use of sensitive loads such as power electronics, computers and non-linear loads in distribution networks, the issue of power quality has received more attention. Most of these loads are sensitive to voltage changes, such as undervoltage and overvoltage, and ...
Master's Thesis Field: Civil Engineering Abstract Bridges are inseparable members of the means of communication and are very influential in economic and social conditions. The passage of time and random loads are among the things that threaten the health of bridges. Abnormal loads caused by natural accidents, execution errors and some other issues can cause progressive collapse ...
Dissertation for Master's Degree in Mechatronics Engineering Persian Abstract The purpose of this project is to introduce a new approach for troubleshooting gas transmission pipelines using mechanical waves, which is much cheaper and easier than other methods. who are currently working. These lines are usually located in difficult environmental conditions and far away and in ...
Master's thesis in the field of business management, financial orientation. Abstract In this research, as an example, forecasting the timing of stock transactions of 17 active companies in the Tehran Stock Exchange was carried out. In this way, firstly, the primary data, which includes 3 variables of the final price, the lowest price and the highest stock price during the period ...
Master's thesis abstract shows the necessity of having a healthy environment and raising the health level of the society, the need to have proper planning to reduce the sources of air pollutants production and predicting these pollutants to prevent its harmful effects is inevitable. Prediction of pollutants can be useful in air pollution management and control. In this research, ...
Master's thesis in the field of electricity-power orientation Abstract Gearboxes are essential and inseparable components of power transmission systems. These machines convert torque into speed and sometimes speed into torque. The use of mechanical gearboxes in these systems has been common since long ago as an interface between the power generation sector and the power ...
Dissertation for receiving a master's degree in the field of civil engineering in the field of earthquakes. Abstract: The introduction of damage generators is very close to the concept of inelastic behavior and, as a result, hysteresis energy. Therefore, it can be said that the hysteresis energy at these levels can be a significant criterion for the design or control of the ...
Civil Engineering Master's Thesis, Soil and Foundation Engineering Abstract In this thesis, in order to analyze the behavior of surface foundations based on reinforced soil, a simple physical method based on the resistance of materials called ""cone method"" is used, which is actually used as an alternative to the exact solution methods that are based on the three-dimensional ...
Dissertation for receiving a master's degree (Sc..M) field: civil engineering, specialization: structure, abstract: In recent years, the subject of seismic isolation has been particularly focused on the seismic design of buildings. The main purpose of this work is to isolate the structure from the ground instead of using conventional retrofitting methods The equipment used in ...
Field of study: Electricity, specialization: Telecommunication. Dissertation Abstract In this thesis, the problems of multi-objective and multi-sensor tracking are investigated using the rule of random particle collection. The regression probability density hypothesis (PHD) is implemented dynamically. This dynamic mode is performed by combining the transfer bias value with the ...
Master's Thesis of Precision Instrument Engineering and Industrial Automation in Oil Industries Abstract Non-linear dynamic systems face many challenges that must be investigated. Among these problems, we can point out things like extreme nonlinearity, changing operating conditions, dynamic uncertainty, both structured and unstructured, and external disturbances. Despite the ...
An academic thesis for receiving a master's degree in chemical engineering, environmental orientation. Among the models that are able to make successful predictions for the performance of reverse osmosis membranes, that is, the amount of separation and flow flux in a wide range of physical conditions (membrane and solution) and laboratory conditions (pressure and concentration), ...
Dissertation for obtaining a master's degree in chemistry, fluoride has been known as a toxic ion for many years. The main source of fluoride in aqueous solutions is minerals containing fluoride and the industrial activities of factories. According to the report of the Environmental Protection Organization, the amount of fluoride more than 1 mg/liter causes various diseases. In ...
Dissertation for receiving the master's degree "".M.A"" in Pathology Abstract The purpose of this research is to investigate the relationship between the type of sleeping and lumbar lordosis and to provide corrective movements in boys aged 10 to 14 years of Islamabad Gharb city. For this purpose, 90 school boys were screened and 40 of them participated in this research as a ...
Dissertation of the master's degree in the field: civil engineering - structure, page 1-1-problem definition: In the science of structural engineering, there has always been an attempt to predict a set of events that will have a significant effect on the efficiency and endurance of the structure during its useful life. These factors should be considered by the design engineer ...
Academic Thesis for Master's Degree in Physical Education and Sports Sciences Abstract The purpose of this study was to investigate the effect of ten days of ginger consumption on delayed muscle contusion in Langrod high school girls. For this purpose, 30 female high school students (average age 15-18 years, height 1.55±0.05 m, weight 53.9±5.83 kg, and body mass index 22.2±1.2 ...
Master's Thesis / Inorganic Chemistry Abstract Considering the application of nonlinear optical properties (NLO) in technologies such as lasers, remote communication, photovoltaic cells, information processing and holography and the mineral diversity of these materials, we started a research in this field and focused on borazine-containing dyes. Our main goal in this research is ...
Dissertation to receive a master's degree. Objective abstract: This research was conducted with the aim of determining the effect of self-management program on knee pain, self-care self-efficacy and performance of elderly people with knee osteoarthritis. Study method: This research is a semi-experimental pre-test and post-test study with a control group of an applied type, which ...
Dissertation for M.A. Master's Degree in Physical Education Major: Sports Physiology Abstract: The purpose of this research was to investigate the effects of a central body stability training program on posture control, dynamic and static balance of volleyball players. The statistical population of this research was volunteer male volleyball players aged 18 to 24 from Zanjan ...
Dissertation for receiving the master's degree ""M.Sc"" orientation: abstract structure In today's reinforced concrete buildings, the use of interframe separators is very common. Intermediate frames with building materials are the main types of separators that are used in this type of buildings. In previous research, these interframe separators are usually considered as ...
A master's thesis in the field of civil engineering - hydraulic structures Abstract Liquid storage air tanks are used not only to store water, but also to store chemicals and toxic substances in different forms. Considering the use of these structures in civil and urban development and industrial networks, their importance is determined before and after the earthquake. The ...
Dissertation for receiving a master's degree in the field of Civil Engineering (M.Sc) Major: Structure Abstract: The retrofitting of important government buildings, infrastructure facilities and vital arteries due to the increase in terrorist attacks around the world and the possibility of bombings near buildings and urban places is one of the most important discussions in the ...
Dissertation for receiving a doctorate degree in the field of physical education, sports biomechanics, abstract: Osteoporosis is a skeletal disorder in which the mechanical strength of bones is reduced and leads to bone fractures, so it is important to pay attention to methods to maintain bone strength and prevent osteoporosis. The aim of this research was to determine the ...
Academic thesis for obtaining a master's degree in the field: physical education, major: exercise physiology. Abstract The purpose of the research was to investigate the effects of elastic resistance training program on some anthropometric and physiological factors of teenage taekwondo athletes. For this purpose, 30 young taekwondo athletes with an average age of 12±1.52 years, ...
Dissertation for receiving a master's degree in electrical engineering, electronics orientation. Chaos theory was founded at the end of the 20th century by Lorentz. Chaos science investigates non-linear systems and their behavior in different conditions. Since the systems around us are mostly non-linear, by creating feedback in them, they may show chaotic behavior, so chaos ...
Abstract This thesis deals with uncertainty estimation in robust control of robotic arms and presents new methods based on voltage control strategy for uncertainty estimation. The voltage control method is much simpler compared to the conventional torque control method, because it does not require a complex non-linear model of the robot. As a result, the volume of controller ...
Master's thesis in the field of instrumentation and automation engineering in the oil industry, abstract modeling and non-invasive control of implantable blood pumps in the body for heart failure patients. Left ventricular assist devices (LVAD) are mechanical pumps that are surgically placed in the body of patients who are in the dangerous and final stages of congestive heart ...
Abstract: This thesis proposes a new control strategy to control single-phase distributed generation system DG [1] connected to the grid based on Lyapunov stability theory. The main idea in this strategy is that a Lyapunov function similar to energy is defined by considering different states of the distributed generation system and then the control law that makes the time ...
Thesis for receiving a master's degree in mining engineering - mineral processing trend. The abstract of the Golghar Sirjan complex magnetite processing plant includes three circuits of dry crushing and classification, dry magnetic separation and crushing and more magnetic separation. The tonnage of the incoming feed to the factory is 450 tons per hour and the tonnage of the ...
Master's Thesis in Mechanical Engineering, Applied Design, Abstract: Microelectromechanical systems are generally classified based on the type of their excitation mechanism. In addition to electrostatic excitation, which is considered as one of the most important excitation mechanisms, thermal excitation is widely used in multi-layered and functionally variable ...
Introduction Engineers are always looking for better quality. In mathematics and computer science, it is the process of choosing or finding the best member in the sets of available options. Every process has the potential to be optimized and complex problems can be modeled as optimization problems in the fields of engineering, economic and business sciences. The goal of modeling ...