Czech

6

doc. Ing. Stanislav Věchet, Ph.D.

Institute of Solid Mechanics, Mechatronics and Biomechanics

Vector and matrix. Resultants of a force and couple system. Further reduction of a force and couple system. Constraints for a rigid body. Model of rigid body with respect of Newton's Laws. DOF analysis. Equations of static equilibrium in two and three dimensions. Characteristics of a dry friction and rolling resistance. Coordinate systems. Centre of gravity. Definition of work and virtual work for variable force and for variable moment. Principle of work and energy. Conservation of energy theorem. Principle of linear impulse and momentum. Conservation of linear momentum and of angular momentum. Statement of Newton’s laws of motion. Basic terminology of planar kinematics – radius vector, velocity and acceleration. Curvilinear motion of particle-determination of tangential and normal component of acceleration.

The course-unit credit is granted under the condition of active participation in seminars and passing the seminar tests of basic knowledge (at least 10 ECTS points out of 20 must be gained). The points gained in seminar tests are included in the final course evaluation.
Final examination: Written part of the examination plays a decisive role, where the maximum of 80 ECTS points can be reached. Solution of several computational problems is demanded. The problems come from typical profile areas of given subject and supplied by a theoretical question, proof, etc. The lecturer will specify exact demands like the number and types problems during the semester preceding the examination.
Final evaluation of the course is obtained as the sum of ECTS points gained in seminars and at the examination. To pass the course, at least 50 points must be reached.

Attendance at practical training is obligatory. Head of seminars carry out continuous monitoring of student's presence, their activities and basic knowledge.

The course “Engineering mechanics” provides the students with knowledge of basic axioms, laws and principles of classical mechanics. The emphasis is to make students understand the physical principles of rigid bodies motion and multi body systems and students will apply them to solve simple technical problems in practice.
Kinematics is based on formulation of trajectory, body motion, multi body systems and determination of kinematic quantities, position, velocity and acceleration. For simple mechanical systems, students learn to solve kinematics of mechanisms and analyse the velocity and acceleration of key points of multi body system.
Determination of the kinematic quantities is necessary for further dynamic solving. Dynamics is based on knowledge of solving multi body systems.
The course will provide students with knowledge necessary to solve the kinematics and dynamics problems of planar multi body systems. Solve kinematics outputs as trajectory (position), velocity and acceleration of any point of the moving bodies, in terms of a fixed coordinate system, as well as in terms of moving coordinate systems. The students will be able analysed relation between actuated active force effects and kinematics of moving body.

Programme B-PDS-P: Industrial Design, Bachelor's, compulsory

Programme B-KSI-P: Mechanical Engineering Design, Bachelor's, compulsory

Programme B-ENE-P: Energy, Bachelor's, compulsory

Programme B-PRP-P: Professional Pilot, Bachelor's, compulsory

Programme B-STR-P: Engineering, Bachelor's
specialization AIŘ: Applied Computer Science and Control, compulsory

Programme C-AKR-P: , Lifelong learning
specialization CLS: , elective

Programme B-STR-P: Engineering, Bachelor's
specialization KSB: Quality, Reliability and Safety, compulsory

Programme B-STR-P: Engineering, Bachelor's
specialization SSZ: Machine and Equipment Construction, compulsory

Programme B-STR-P: Engineering, Bachelor's
specialization STG: Manufacturing Technology, compulsory

12 hours, compulsory

Kinematics of a particle – rectilinear and curvilinear motion. Trajectory, velocity and acceleration. Planar motion kinematics of bodies.

Kinematics of planar rigid body motion – Graphical analysis. Instantaneous centre of zero velocity.

Kinematics of planar mechanisms – Graphical analysis of combined motion.

Kinematics of planar mechanisms. Planetary gearboxes. Cam mechanism.

Dynamics of particle. Dynamics of a system of particles. Laws of conservation.

Motion equations of rigid body motion. Newton's Law.

Inertia moments. Rotational and planar body motion.

Dynamics of planar body motion. The 2nd order differential motion equation

Dynamics of planar multi body systems with 1 DOF.

Motion equations of rigid body motion. Lagrangian mechanics.

Motion equation of a linear resonance system with 1 DOF. Undamped and damped systems.

Analysis of motion equation of a linear resonance system with 1 DOF.

Excited oscillations. Amplitude-frequency characteristic. Clearance calculation.