Download more than 100 examples of thesis, proposal and project topics about non linear vibrations in editable WORD file format at undergraduate, graduate and doctoral levels for use and reference in research, articles, theses, student and academic projects.
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 ...
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 ...
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 ...
Dissertation for M.Sc Master's Degree, Mechanical Engineering - Applied Design Abstract Modern wind turbines today tend to vibrate a lot due to their elastic, long and narrow structure. Therefore, all components of wind turbines should be subjected to vibration and modal analysis in the design stages, and their natural frequencies should be reviewed with turbine excitation ...
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 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 ...
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
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
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 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 ...
Dissertation for Master's Degree in Civil Engineering, Structures Chapter 1: Introduction-1-Introduction In recent years, the philosophy of traditional methods, which were based on the design of structures against natural hazards, has undergone major changes. Extensive destruction of structures designed on the basis of old regulations in recent earthquakes, advances in analysis ...
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 ...
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 ...
Master's Thesis of Mechanical Engineering-Applied Design Abstract In many applications, graphene (monolayer or multilayer) is used in the polymer matrix as a composite. In this research, ideal graphene with a hexagonal bond shape between atoms, located in a polymer matrix, with different boundary conditions, including gripped and simple, under biaxial external compressive ...
Dissertation for M.Sc Master's degree, mechanical engineering-applied design Abstract With the emergence of composite materials, a huge progress was achieved in many engineering applications. Nevertheless, problems such as delamination, stress concentration, and discontinuous distribution of stress, the idea of ??creating a new type of composite materials in which properties ...
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 ...
Master's Thesis on Car Structure and Body Abstract In recent years, many researchers have allocated their attention to a special category of materials, memory materials. The ability to absorb and control vibrations actively or passively, respectively, is affected by the features of shape memory and hysteresis energy loss caused by the pseudo-elastic characteristics of these ...
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 ...
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 ...
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 ...
Dissertation for Master's Degree in Mechanical Engineering (Applied Design) Abstract In this research, the analysis of vibrations, buckling and wave propagation of wrapped nano beam under axial load on Pasternak substrate is discussed. First, the displacement and displacement field of the wrapped beam is obtained. Then, using the obtained displacement field, strain-displacement ...
Abstract The differential equations that appear in physical problems are often non-linear, and their exact solution is necessary to obtain the solution. Since most of the nonlinear differential equations do not have an analytical solution, the numerical solution methods of these equations seem useful for things like plasma physics. For this purpose, in this thesis, the numerical ...
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 ...
Master's degree in electrical engineering, control orientation, electrical engineering, control orientation, abstract. Today, chemistry and oil and gas extraction and refining is one of the most important economic and productive support points of countries. One of the most common processes in refineries is the separation of chemicals. This is done using separator towers. The ...
Dissertation for master's degree in Applied Design-Dynamics and Control Abstract: Transverse instability is one of the common problems in high-speed rail vehicles, which occurs on rails without arches and due to the friction-creep nature of wheel-rail contact that creates non-conservative forces in the system. This phenomenon is called hunting, which is a type of ...
Dissertation for the M.Sc. In the field of electrical engineering, power electronics, abstract: The material that is analyzed in this thesis in order to simulate and implement the buck converter nonlinear controller is presented in four chapters. In general, the buck converter and the relationships governing it and the studies conducted on the buck converter and a control method ...
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 for receiving the degree of M.Sc. Industrial Engineering-Industrial Engineering Summer 2013 Abstract: In today's age, are there fewer companies? It can be seen that it is exclusively related to the production of a product.
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 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 ...
Dissertation for Master's Degree in Energy Conversion Mechanical Engineering Abstract: Fluid propulsion vector orientation has emerged as an important technology for high performance air vehicles. This technology can improve the maneuverability of the aircraft by changing the nozzle flow and its deviation from its axial direction. The purpose of this study is to investigate the ...
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 ...
Mechanical Engineering - Applied Design Orientation Abstract: Vibration is one of the important and basic concepts in engineering sciences. In simple words, any system that has mass and spring property has the ability to vibrate and can vibrate at a natural frequency. It can be said with certainty that 95% of vibrations in industries are harmful to systems. If the system is in ...
Dissertation for Master's Degree in Educational Psychology Spring 2019 Abstract Concept map is one of the teaching-learning strategies that can facilitate meaningful learning in students and relationships
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
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 – Shahrivar Marine Structures, September 1992 Abstract: Pipe-in-pipe systems are widely used in transmission line applications.
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.
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 ...
Dissertation for obtaining a master's degree (M.A) Business Management - Marketing Orientation Summer 2019 Abstract Considering the ever-increasing speed of changes and competition in the economic world, managers should have
Master's Degree in Architectural Engineering (M. A) June 2013 Abstract: This article is taken from a research that aims to identify the factors affecting the communication of spaces.
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 ...
The thesis of the master's degree course in the field of economic sciences, February 2013, is an abstract of the prediction of effective tools and solutions for the purpose of planning and compiling financial methods. Prediction accuracy is important
Abstract Today, rice is the main food of more than half of the world's population and rice is cultivated in five continents and more than forty countries. Rice is one of the main meals of the people of Iran, until 1340, Iran exported more or less rice annually, and since then, as a result of the improvement of the economic situation of the people and the rapid increase of the ...
Dissertation for master's degree in accounting, accounting major. Abstract: The present research was conducted in order to provide evidence regarding the effect of ""privatization"" on the quality of profit of companies admitted to the Tehran Stock Exchange. The spatial domain of this research is Tehran Stock Exchange and its temporal domain is 1382 to 1392. In order to test the ...
Dissertation for receiving a master's degree, Major: Accounting, Abstract: Considering the importance of the liquidity of companies' shares in the capital market, the present research seeks to investigate the factors affecting liquidity. In this regard, the impact of dividend policies on the liquidity of companies' shares has been tested. In this research, multiple linear ...
Master's Thesis in Family Counseling Abstract: The present study was conducted with the aim of investigating the relationship between emotional intelligence of female teachers and violence against them. In addition, subscales of emotional intelligence were used to predict violence against female teachers. For this purpose, 280 female teachers were selected by cluster sampling ...
Master's Thesis of Industrial Engineering, Financial Orientation, November 2013. Abstract: Evaluation of the performance of organizations and intra-organizational units is a necessary tool for their continued life and growth. Among various models and techniques.
Dissertation of Master's Degree in Industrial Engineering – Summer Industries 2013 Abstract A supply chain is a collection of suppliers, manufacturers, and distributors.
Dissertation of master's degree in structural engineering February 2019 Chapter 1: Introduction 1-1. General, one of the most important natural events that always affects the lives of human beings
Dissertation for Master's Degree in Industrial Engineering, Industrial Orientation, Esfand 90, Abstract Today, due to the progress in technology, the globalization of markets, the diversity of customer demand, and the increase
Dissertation for Master's Degree (M.A.) Major: General Abstract The purpose of this research was to predict children's mental health and resilience based on marital satisfaction and mothers' attachment styles. The method of the present research was descriptive correlation of the predictive type. The statistical population of this research is made up of all the 10-12-year-old ...
Dissertation for Master's Degree in Clinical Psychology Abstract In this research, the moderating role of coping strategies and social support in the relationship between quality of life, psychological symptoms and parenting styles has been examined and 120 female heads of households in Alborz province were selected as the research sample. Research evidence and the results of ...
Dissertation for Master Degree (M.A.) Direction: General Abstract The relationship between personality traits and addiction to computer games was tested on a sample of 400 students (200 men and 200 women). In the present study, it is assumed that five personality dimensions (neuroticism, extroversion, openness, agreeableness, and conscientiousness) can predict addiction to ...
Dissertation for Master's Degree (M.A.) Major: General Examining the relationship between mental health and academic progress in a group of middle school girls taking into account the employment status of mothers; Shiraz 2013 Abstract: The present study was conducted in order to investigate the relationship between mothers' employment and mental health and the academic progress ...
Dissertation for receiving a master's degree, specialization: accounting, abstract: according to the efficient market theory, one of the characteristics of an efficient and ideal market is the absence of transaction costs and, as a result, high liquidity. With the increase in liquidity, the cost of transactions will decrease significantly. Liquidity also plays an important role ...
Academic Thesis for Master's Degree (M.A) in Clinical Psychology Abstract Introduction and Objective: Internet addiction is a new and widespread issue that has been the focus of researchers and experts on social issues as a behavioral addiction in recent years. The purpose of this research is to predict internet addiction based on two personality traits: attraction, immersion, ...
Dissertation for Master's Degree in Geomorphology in Environmental Planning Abstract Geotourism is one of the newest and most popular branches of tourism and its fans are increasing every day and it is considered a tool for sustainable development. Geotourism or geotourism is a branch of tourism whose purpose is to enjoy seeing beautiful and amazing geological and ...
Dissertation for Master's Degree in Industrial Management, Finance, Subject: Investigating the relationship between credit risk management and overdue claims of Mellat Bank. The statistical population of the current research is Bank Mellat of Semnan province. The statistical sample of the present research is in the management of Bank Mellat branches in Semnan province in the ...
Dissertation for the degree of Master of Accounting (M.A.) Summary of the research: In this century, the intensity of competition and the complications and uncertainties caused by it have caused the management of companies to be more sensitive to the use of their financial and non-financial resources, and all they try to do is to spend the resources in a place that creates value ...
Dissertation for receiving a master's degree in the field: Political Geography (M.A) Abstract: The science of political geography is one of the broad topics of science and is created from a politically organized unit in a specific geographical territory that includes the government's rule and a specific space. These organized units can include the primary political core, limited ...
Dissertation for receiving a master's degree major: Accounting Abstract: This research empirically shows to tax financial analysts, investors, managers and other users of accounting and financial information that there is a positive and significant relationship between tax evasion in the electronic system with the indicators of recording transactions in the books, non-disclosure ...
Dissertation for Master's Degree (M.A.) Major: Industrial and Organizational Relationship between Emotional Intelligence and Job Satisfaction with Organizational Citizenship Behavior of Finance Employees of Fars University of Medical Sciences Abstract In this research, the effect of organizational citizenship behavior, emotional intelligence on job satisfaction of finance ...
Dissertation for Master's degree ""M.A"" in Business Management International Business Abstract The aim of this research was to investigate the effect of brand personality on trust, attachment and commitment to the brand in the detergent industry. For this purpose, 385 consumers of detergents who buy from chain stores in Tehran were selected as a sample and answered the standard ...
Master's thesis in the field of natural geography, climatology and environmental planning, abstract human civilization is based on the stability of climatic conditions, therefore climate change can be considered a threat to human civilization. In recent years, climate scientists have tried to trace these changes for some climatic elements, the most important of which is ...
Dissertation for M.A. Degree: Clinical Psychology Abstract Objective: The present study compares active schemas in depressed subjects with anxious subjects in non-profit Azad University students of Rasht city. The research method is correlational and post-event, comparative and cross-sectional. The statistical population of this research was all the people who studied in the ...
Master's Thesis in Accounting Abstract: The strength and credibility of financial and credit institutions is the money that depositors have deposited in them, and the progress and survival of each of the mentioned institutions depends on the share of the total market resources, and increasing the share of the market resources requires continuous effort and a strong, ...
Thesis for obtaining a master's degree in the field: Geography, specialization: Climatology in environmental planning. Abstract: In this research, the monitoring and zoning of drought as well as the investigation of its different dimensions in the country of Iran using statistics and information related to precipitation and temperature for 30 years (1981-2010) of the country's ...
Dissertation to receive the master's degree ""M.S.c"" specialization: Textile chemistry and fiber science Abstract: One of the important processes in the completion of textile goods is the underhand improvement in textiles. Finishing the softener provides a desirable softness to the fabric and improves its properties, and the main goals of the softener are to reduce static ...
Dissertation for obtaining a master's degree in the field: accounting, major: accounting. Abstract In this research, the relationship between avoidance and reckless financial reporting in companies listed on the Tehran Stock Exchange has been investigated. The statistical sample of the research included 140 companies during the period of 1381 to 1390. In this research, it ...
The thesis for receiving a master's degree (M.A) in the field of accounting, the abstract quality of profit from various aspects including (having predictive value, feedback value, neutrality, timeliness and honest expression) has been evaluated and considered by researchers. The purpose of this research is to examine the relationship between some corporate governance mechanisms ...
Dissertation for receiving a master's degree in the field of ""M.A"" specialization: insurance management, abstract of companies for their survival in today's turbulent and changing world, new ideas and Need new comments. The increase of threats on the one hand and the use of opportunities on the other hand in the tense and unpredictable environment make companies face strong ...
Dissertation for Master's Degree (M.A.) Orientation: ""Strategic"" Introduction Today, the need for proper planning is clear in order to correctly estimate the time and cost of the project and the amount of resources required in a project, which have a direct impact on the implementation, administration and proper exploitation of projects such as dam construction and building. ...
Dissertation for obtaining a master's degree, field: human geography, orientation: urban planning, abstract: urban decay is one of the serious problems and unavoidable phenomena that urban management in all countries of the world is facing. What is important is that urban wear and tear is not specific to a specific country or a specific city, but all cities and villages in the ...