Mechanics E
Áreas Científicas |
Classificação |
Área Científica |
OFICIAL |
Mecânica e Estruturas |
Ocorrência: 2022/2023 - 2S
Ciclos de Estudo/Cursos
Sigla |
Nº de Estudantes |
Plano de Estudos |
Anos Curriculares |
Créditos UCN |
Créditos ECTS |
Horas de Contacto |
Horas Totais |
TPD |
41 |
Study Plan |
1 |
- |
6 |
75 |
162 |
Docência - Responsabilidades
Língua de trabalho
Portuguese
Objetivos
After the attendance of this course unit, students should be able to apply acquired concepts in order to solve problems involving the:
- kinematics of particles and rigid bodies;
- dynamics of particles and rigid bodies;
- damped and undamped mechanical vibrations.Resultados de aprendizagem e competências
Students should acquire basic skills related to the dynamics of particles and rigid bodies.
Modo de trabalho
Presencial
Pré-requisitos (conhecimentos prévios) e co-requisitos (conhecimentos simultâneos)
Knowledges of mechanics: forces, moments, equilibrium.
Programa
1. Particle kinematics (4.0 weeks)
Uniform and uniformly varied rectilinear movement. Non-linear movement. Uniform and uniformly varied circular motion.
2. Kinematics of rigid bodies (4.0 weeks)
Rigid body motion. Translation. Rotation around a fixed axis. Equations that define the rotation of a rigid body about a fixed axis. Propagation of speeds and accelerations. Instantaneous field of velocities of a rigid body. Instant movements of a rigid body. Instant center of rotation. Plane motion. Propagation of speeds and accelerations.
3. Particle dynamics (3 weeks)
Concepts of strength, work and mechanical energy. Amount of movement. Impulse. Applications on Newton's laws to motion.
4. Rigid body dynamics (3 weeks)
Plane motion of rigid bodies: equations of motion. Flat motion with restrictions. Amount of angular motion of a rigid body in plane motion. Methods of energy and amount of movement. Principle of work and energy. Work of forces acting on a rigid body. Kinetic energy of a rigid body in plane motion. Rigid body systems. Energy conservation. Power. Principle of momentum and amount of motion for plane motion.
5. Mechanical vibrations not damped and damped (1 week)
Mechanical vibrations. Particle-free vibrations. Simple harmonic movement. Simple pendulum. Vibrations free of rigid bodies. Free vibrations not dampened. Application of the energy conservation principle. Damped vibrations. Damped free vibrations.
Bibliografia Obrigatória
Beer; Johnston; Mecânica Vetorial para Engenheiros: Dinâmica, McGraw Hill, 2019
Bibliografia Complementar
João Vinagre; Folhas de Mecânica E, 2021
Métodos de ensino e atividades de aprendizagem
Topics are presented, with emphasis on the most relevant aspects, followed by the resolution, by students, of practical cases.
Tipo de avaliação
Distributed evaluation with final exam
Componentes de Avaliação
Designation |
Peso (%) |
Teste |
80,00 |
Trabalho escrito |
20,00 |
Total: |
100,00 |
Componentes de Ocupação
Designation |
Tempo (Horas) |
Estudo autónomo |
52,00 |
Frequência das aulas |
60,00 |
Trabalho escrito |
50,00 |
Total: |
162,00 |
Obtenção de frequência
Fórmula de cálculo da classificação final
Continuous assessment
Test 1 (40%) + Test 2 (40%) + Moodle exercises (20%)
Exam
Exam (100%)
Observações
In current semester, classes will be taught in the classroom.