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Teaching GuideTerm Higher Technical University College of Civil Engineering |
| Grao en Tecnoloxía da Enxeñaría Civil |
 Subjects |
| Ecuacións diferenciais |
| Contents |
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| Identifying Data | 2019/20 | |||||||||||||
| Subject | Ecuacións diferenciais | Code | 632G02017 | |||||||||||
| Study programme |
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| Descriptors | Cycle | Period | Year | Type | Credits | |||||||||
| Graduate | Yearly |
Second | Basic training | 9 | ||||||||||
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| Topic | Sub-topic |
| 1 First order differential equations | 1.1. Introduction 1.1.1. Concept of ordinary differential equation, and grades. 1.1.2. Modeling of natural phenomena in terms of mathematical equations. Algebraic, differential and functional equations 1.1.3. Origin of differential calculus: Newton and Leibniz 1.1.4. Examples of Civil Engineering problems that can be written in terms of ODEs: Buckling of pillars, fireplaces oscillatory movement in equilibrium, mixed torsion problem of the catenary, mechanical vibration spring systems, ... 1.2. General solutions and particular solutions. Cauchy problem and inverse problem 1.3. Integration of differential equations: Analytical methods, graphical and numerical 1.4. Existence theorem of uniqueness of solutions of first order ODEs 1.4.1 The method of successive approximations Picard 1.4.2. Picard's theorem for first order differential equations 1.5. Differential equations in separate variables 1.6. Homogeneous differential equations 1.6.2. Homogeneous functions 1.6.3. Homogeneous solution of differential equations 1.7. Reducible to homogeneous differential equations 1.8. Exact differential equations 1.9. Solving differential equations using integration factors 1.9.2. Factors dependent integration x 1.9.3. Factors dependent integration and 1.9.4. Factors dependent integration 1.10. Linear differential equation 1.11. Bernoulli differential equation 1.12. Riccati differential equation 1.13. Application examples: Geometric Problems, flush tanks, dynamic problems, dissolution of substances, thermodynamic problems and persecutions. 1.14. Not explicit in the equations derived 1.14.2. Solvable equations 1.14.3. Solvable equations and 1.14.4. Solvable equations x 1.14.5. Lagrange equations 1.14.6. Clairaut equation 1.15. Curves and Paths 1.15.2. And isogonal orthogonal to a beam curved trajectories in Cartesian coordinates 1.15.3. Isogonal orthogonal to a beam and curved paths in polar coordinates 1.15.4. Parallel curves to a given curve 1.15.5. Involute curves to a given 1.15.6. Envelope curves to a given family 1.15.7. Geometric problems, some notable planar curves: Lemniscata Bernoulli, cardioid, Hypocycloid, cissoid of Diocles, Pascal snail, Ovals of Cassini 1.15.8. Application to problems related to engineering: flow curves through an embankment dam, parables safety, electrical flow curves between two charges of equal magnitude and opposite sign, ... |
| 2 Second order differential equations | 2.1. Linear differential equations 2.1.1. Concept. Homogeneous equation and complete equation 2.1.2. Application to solving problems of mathematical physics 2.1.3. Methods of solving linear differential equations 2.1.4. Theorem of existence and uniqueness of linear equations: enunciation 2.2. Second order linear equations 2.2.1. Superposition theorem 2.2.2. General solution of the homogeneous linear differential equation of order two 2.2.3. Obtaining the second solution from the first 2.2.4. General solution of the complete equation 2.2.5. Getting the particular solution: Method parameter variation 2.3. Linear equations of order n 2.3.1. Superposition theorem 2.3.2. General solution of the linear differential equation of order n homogeneous 2.3.3. General solution of the linear differential equation of order n complete 2.3.4. Homogeneous linear equation with constant coefficients 2.3.4.1. Characteristic equation 2.3.4.2. Real and simple roots 2.3.4.3. And multiple real estate 2.3.4.4. Complex and simple roots 2.3.4.5. Complex and multiple roots 2.3.5. Obtaining particular solutions 2.3.5.1. Method of undetermined coefficients 2.3.5.2. Method of variation of parameters 2.3.5.3. Operational methods of Heaviside 2.3.5.3.1. Overview 2.3.5.3.2. Method of successive integrations 2.3.5.3.3. Decomposition method Simple Fractions 2.3.5.3.4. Method Development Series Polynomial Operators 2.3.5.3.5. Exponential Moving Rule 2.4. The Euler-Cauchy 2.4.1. Characteristic equation associated with the Euler-Cauchy 2.4.2. Real and simple roots 2.4.3. And multiple real estate 2.4.4. Complex and simple roots 2.4.5. Complex and multiple roots 2.5. Resolution of other equations of order n nonlinear 2.5.1. Second-order equations in which does not appear and 2.5.2. Second-order equations in which there appears x 2.5.3. Equations of order n in which there appear 2.6. Troubleshooting Free and forced vibrations with and without damping, resonance and tap: Mechanical Systems of springs, balance swings in fireplaces, Archimedes' principle, pendulums, ... 2.7. Application problems: geometric, mechanical, electrical, cinematic, ... 2.8. Susceptible civil engineering problems to be solved by integrating a differential equation of order greater than one: heavy Cables, antifunicularidad, bows, ... |
| 3 Resolución de ecuacións diferenciais en MATLAB | 3.1. Introduction to MATLAB 3.1.1 . Basic operations 3.1.2 . Matrices 3.1.3 . Graphics 3.2 . MATLAB programming 3.3 . Solving ODEs 3.3.1 . First order equations 3.3.2 . Higher-order equations 3.3.3 . Numerical methods 3.3.4 . Systems 3.3.5 . Laplace transform 3.3.6 . Power Series |
| 4 Systems of differential equations | 4.1. Introduction to Differential Equations Systems 4.1.1. System concept of Ordinary Differential Equations. Initial value problems 4.1.2. Systems of linear equations of order n with m equations and unknowns 4.1.3. Reduction of order na equation system of n equations and unknowns of the first order 4.1.4. Reduction of a system of order n and m equations and unknowns, one of the first order with n • m equations and unknowns 4.2. Obtaining the general solution of a linear system of order one 4.2.1. Superposition theorem homogeneous systems solutions 4.2.2. General solution of a homogeneous system. Fundamental Matrix Solutions 4.2.3. General solution of a complete system 4.3. Obtaining the general solution of homogeneous systems of linear differential equations with constant coefficients 4.3.1. Method of Laplace Transform 4.3.2. Disposal Method 4.3.3. Euler method or the eigenvalues 4.3.3.1. Introduction 4.3.3.2. Real simple eigenvalues 4.3.3.3. Complex and simple eigenvalues 4.3.3.4. Real and multiple eigenvalues 4.3.3.4.1. Default null 4.3.3.4.2. Greater than or equal to one defect. Concept of Generalized Eigenvectors 4.4. Getting the particular solution of differential equations Systems Complete 4.4.1. Method of variation of parameters 4.4.2. Method of undetermined coefficients 4.5. Systems of differential equations Euler-Cauchy 4.6. Application problems: Problems deposits, mechanical and electrical problems, geometric problems: epicycloid curves and cycloid hipocicloide |
| 5 Laplace Transformed | 5.1. Definition of the Laplace Transform and the Gamma Function 5.1.1. Definition of the Laplace Transform 5.1.2. Concept of convergence of the Laplace Transform 5.1.3. Application of the Laplace transform to solving ODEs. Analogy with the resolution of ODEs power series 5.1.4. The Gamma Function 5.1.5. Laplace transform of elementary functions 5.2. Existence theorem Laplace Transform. Inverse transform and linearity 5.2.1. Concept of piecewise continuous function and function of exponential order 5.2.2. Existence theorem of the Laplace Transform 5.2.3. Uniqueness theorem of the inverse transform 5.2.4. Linearity theorem of the Laplace Transform 5.3. Scaling and translations. Heaviside unit step function and Dirac Delta Function 5.3.1. Scaling in t. Compressions and expansions 5.3.2. Translation along s 5.3.3. Heaviside unit step function. Transformed 5.3.4. Translation along t 5.3.5. Dirac delta function. Transformed 5.4. Derivatives and integrals 5.4.1. Transformed by the first derivative and the successive derivatives 5.4.2. Transform an integral 5.4.3. Derived from the transformed 5.4.4. Integration of the transformed 5.5. Transform of a periodic function 5.6. Convolution product 5.6.1. Product definition convolution of two functions 5.6.2. Convolution product properties 5.7. Application of the Laplace Transform to the integration of ODEs 5.7.1. Initial value problems. Equations and systems 5.7.2. Getting inverse transforms by partial fractions and convolution product 5.7.3. Application to solving physical problems with step functions and impulse functions, electrical and mechanical problems, ... |
| 6 Resolution of differential equations in power series | 6.1. Introduction 6.1.1. Justification for the use of power series in solving ODEs 6.1.2. Convergence of power series 6.1.3. Radius of convergence 6.1.4. Analytic functions 6.2. Power series solution of first-order ODE 6.2.1. The principle of identity: enunciation 6.2.2. Procedure for obtaining power series solutions to equations of the first order 6.3. Solution in powers of second order ODE 6.3.1. Regular and singular points 6.3.2. Existence theorem for power series solutions about ordinary points: enunciation 6.3.3. Procedure for obtaining power series solutions about ordinary points 6.3.4. Legendre differential equation 6.3.4.1. Obtaining the solution of the equation in powers Legendre 6.3.4.2. Legendre polynomials 6.3.4.3. Rodrigues formula 6.3.5. Regular singular points 6.3.6. Existence theorem of Frobenius series solutions: enunciation 6.3.7. Obtaining solutions of ODEs power series about regular singular point: Frobenius method 6.3.8. Bessel differential equation 6.3.8.1. Bessel differential equation a & amp; # 61550; 6.3.8.2. Resolution Bessel differential equation in powers 6.3.8.3. Bessel functions of first and second species 6.3.8.4. Bessel's differential equation of order 0 6.3.8.5. Bessel differential equation of the second kind 6.3.9. Resolution power series of equations Chebyshev, Laguerre, Airy, Hermite, hypergeometric Gauss hypergeometric Kummer 6.3.10. Application to the resolution of mechanical, thermal, buckling of pillars problems, ... |
| 7 Resolution of differential equations in series of ortogonal functions. Fourier series. Boundary problems |
7.1. Orthogonal functions 7.1.1. Concept of orthogonal functions 7.1.2. Standard function and orthonormal functions 7.1.3. Generalized Fourier series 7.1.4. Determination of generalized Fourier coefficients 7.1.5. Orthogonal functions with regard to a weighting function 7.2. Boundary value problems. The Sturm-Liouville 7.2.1. The Sturm-Liouville problem. Eigenvalues ??and eigenfunctions 7.2.2. Orthogonality theorem 7.2.3. Real character of the eigenvalues 7.2.4. Study of the orthogonality of the Hermite polynomials, Laguerre, Legendre and Chevyshev 7.2.5. Troubleshooting contour arising in the theory of structural design. Determination of critical loads of Euler 7.3. Fourier series 7.3.1. Fourier Series concept and application to solving ODEs 7.3.2. Fourier series of functions of period and 2L 7.3.3. Determining the Fourier coefficients 7.3.4. Theorem Convergence of Fourier Series 7.3.5. Fourier series of odd and even functions 7.3.6. Odd and even non-periodic extensions of functions 7.3.7. Complex form of the Fourier series 7.3.8. Solving ODEs Fourier series. Resonance 7.3.9. Resolution of geometrical, mechanical and electrical differential problems by the Fourier series 7.3.10. SF implementation of the resolution of problems related to Civil Engineering plate deformation, joint twisting, warping of sections 7.4. Introduction to the Fourier Transform 7.4.1. Extension of the concept of Fourier series nonperiodic functions 7.4.2. Fourier integral 7.4.3. Integral theorem of Fourier. Enunciation 7.4.4. Fourier Transform Breast 7.4.5. Fourier cosine transform 7.4.6. Fourier Transform 7.4.6.1. Complex form of the Fourier integral 7.4.6.2. Fourier transform |
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