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Mechanics E

Code:

TPD010

Sigla:

ME

Áreas Científicas
Classificação	Área Científica
OFICIAL	Mecânica e Estruturas

Ocorrência: 2020/2021 - 2S

Ativa?	Yes
Unidade Responsável:	Mecânica e Estruturas
Curso/CE Responsável:	Undergraduate in Oil & Gas Technologies

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
TPD	32	Study Plan	1	-	6	75	162

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 kinetics (2 weeks)
Concepts of strength, work and mechanical energy. Amount of movement. Impulse. Applications on Newton's laws to motion.

4. Rigid body kinetics (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 (2 weeks)
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. Forced vibrations not dampened. Damped vibrations. Damped free vibrations. Damped forced vibrations.

Bibliografia Obrigatória

Beer; Johnston; Mecânica Vetorial para Engenheiros: Dinâmica, McGraw Hill, 2019
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	75,00
Trabalho escrito	20,00
Participação presencial	5,00
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

Accomplishment of the following components (evaluated on a scale of 0 to 20) throughout the semester:

- Individual exercises (ER) (75%);

- Exercises and Tests to be performed in Moodle environment (M) (20%);

- Active class participation (PA) (5%).

The individual tests will be carried out in the academic period, on a date communicated in the previous week, being:

- Five, if the assessment is completely online (all of which are counted for the calculation of the average, TP);

- Six, if the assessment is fully in person (average of the 5 best ones, TP).

If the assessment goes from online to face-to-face, during the semester, the rule stablished to the complete online assessment will remain.

In online exercises or in online exams with a rating greater than or equal to 10, oral tests will be carried out.

Fórmula de cálculo da classificação final

Continuous assessment
Regular exercises (75%) + Moodle exercises (20%) + Active Class participation (5%)

Exam
Exam (100%)

Observações

In current semester, classes will be taught online, changing to face-to-face format as soon as the pandemic allows.