
Course unit
APPLIED MECHANICS
IN05105663, A.A. 2019/20
Information concerning the students who enrolled in A.Y. 2018/19
ECTS: details
Type 
ScientificDisciplinary Sector 
Credits allocated 
Educational activities in elective or integrative disciplines 
INGIND/13 
Applied Mechanics for Machinery 
6.0 
Course unit organization
Period 
Second semester 
Year 
2nd Year 
Teaching method 
frontal 
Type of hours 
Credits 
Teaching hours 
Hours of Individual study 
Shifts 
Lecture 
6.0 
48 
102.0 
No turn 
Prerequisites:

Calculus I
Physics
Fundamentals of Linear Algebra and Geometry
Numerical analysis
Calculus II 
Target skills and knowledge:

The course aims to provide the fundamental skills (laws, equations, theorems) for modeling in the mechanical field.
The course includes the methodologies and tools for solving kinematic analysis and machine dynamics problems, with particular emphasin on plane motion. 
Examination methods:

The exam focuses on the entire program and consists mainly of a written test, which includes both numerical exercises and theory questions.
Approximately there are 23 exercise questions and 23 theory questions. Each question is associated with a score that appears in the exam track, so that the student can have an indication of the score he can reach.
The total duration of the written test is at least 2 hours.
The oral exam is only foreseen in three cases
a) If the result in the written test is 16 or 17/30. In this case, the student is given the opportunity to achieve sufficiency by an oral exam on the date indicated by the teacher.
b) If the student wishes to improve any sufficient mark obtained in the written test, even in this case the oral test must be sustained in the same appeal on the date indicated by the teacher.
c) If the student obtained a very negative mark (<10/30) in a previous written test, even in this case the oral test must be sustained in the same appeal on the date indicated by the teacher. 
Assessment criteria:

To pass the exam the student must demonstrate the ability of analyzing mechanical systems, the ability of dividing complex systems into subsystems, the ability of understanding the physical phenomena that govern kinematics and dynamics of mechanical systems.
In detail, numerical exercises are evaluated positively if the calculation method and hypothesis are correct and the final result is correct.
The answers to the theory questions are evaluated positively, if the physical / mathematical treatment is correct, the exposure is clear and the treatment is complete. 
Course unit contents:

Introduction
Contents of Applied Mechanics with reference to the training course. Examples of analysis and synthesis problems with reference to mechanical systems used in aerospace engineering.
Applied Kinematics
Degrees of freedom, kinematic pairs.
Structure of mechanisms, degrees of freedom of mechanisms.
Kinematics of rigid bodies. Instant rotation center, Chasles and Kennedy theorems, polar, conjugate profiles.
Kinematics of relative motion, examples.
Kinematic analysis of the closed chain mechanisms with the closure polygon method.
Toggle configurations and their use in aeronautical landing gear.
Examples of analysis related to: slidercrank mechanism, fourbar linkage and aileron mechanisms.
Mechanisms with two or more closed chains. Weakly and strongly coupled mechanisms.
Kinematic analysis by decomposition in Assur groups.
Example of numerical kinematic analysis (WorkingModel code).
Notes on the kinematic analysis of camcouple systems, for example with an eccentric circle cam with a plate tappet.
Transmission between parallel axes with gear wheels with involute profile.
Kinematic analysis of ordinary and epicyclic reducers.
Fundamental concepts of the kinematic synthesis of mechanisms: function generation , trajectory and rigid body guide , optimal synthesis.
Dynamic analysis with the energy approach
Forces transmitted in ideal conditions through kinematic pairs. Power equation for systems with 1 degree of freedom. Reduction of inertias and forces to the motor member. Examples.
Transmission of forces and mechanical advantage. Examples.
Operating speeds of a machine. Efficiency. Retrograde motion.
Dynamic analysis with the Newtonian approach
Cardinal equations, Euler equations.
Application of cardinal equations to plane systems of rigid bodies. Dynamic equivalence of rigid bodies.
Dynamic analysis of mechanisms. 
Planned learning activities and teaching methods:

Lectures also with the support of computer equipment
Exercises carried out on the blackboard 
Additional notes about suggested reading:

Management of teaching material (lecture notes, exercises, exam topics) through the "moodle" platform 
Textbooks (and optional supplementary readings) 

Marco Giovagnoni, Aldo Rossi, Una introduzione allo studio dei meccanismi. Padova: Libreria Cortina, 1999.

Alberto Doria, Esercizi di meccanica applicata alle macchine. Padova: Libreria Progetto, 2008.

Innovative teaching methods: Teaching and learning strategies
 Loading of files and pages (web pages, Moodle, ...)
Innovative teaching methods: Software or applications used
 Moodle (files, quizzes, workshops, ...)
 Working Model
Sustainable Development Goals (SDGs)

