Course code LauZD065

Credit points 9

Manufacturing and Design of Machines

Total Hours in Course243

Number of hours for lectures48

Number of hours for seminars and practical classes48

Independent study hours147

Date of course confirmation22.11.2016

Responsible UnitInstitute of Mechanics and Design

Course developers

author prof.

Aivars Kaķītis

Dr. sc. ing.

author Inženiertehnikas un enerģētikas institūts

Gunārs Vērdiņš

Dr. sc. ing.

author Mehānikas un dizaina institūts

Ēriks Kronbergs

Dr. sc. ing.

Course abstract

The aim of the course is to acquire basic engineering courses. Their studies develop engineering thinking, prepare doctoral students for creative activity, and teach them to apply the acquired knowledge, look for new ideas and model them. Studying this course students acquire not only professional knowledge in the field of machine science but also improve the research skills and ability to solve complex problems in agricultural engineering.

Learning outcomes and their assessment

1. Knowledge - students gain an in-depth knowledge of machine manufacturing and design principles, calculations and methods. Knowledge is assessed in the exam.
2. Skills - is able to creatively use the acquired theoretical and practical knowledge in the field of machine mechanics and drive design and production. Acquired skills are assessed in an exam.

3. Competence - able to model and solve tasks in mechanical engineering, using professional computer programs, to conduct and conduct independent research. Acquired competencies are assessed in an exam.

Course Content(Calendar)

1. Mechanics. Principles and methods of dynamics calculation. Differential equations of a mechanical system. Mechanical system oscillations. Differential equations of free and forced oscillations. Impact theory - 8h.
2. Machine dynamics. Mechanism structure theory. Mechanism kinematics analysis and force determination. Energy performance criteria. Adjusting the travel of the machine. Balancing mechanisms. Vibration insulation - 8h.
3. Resistance of materials. Strength calculation under static loads. Deformation calculations for complex loads. Strength calculation in case of dynamic loads - 8h.
4. Hydraulic drive. Dynamics of hydraulic drive. Proportional hydraulic drive and servo drive. Hydraulic system control - 8h.
5. Pneumatic drive. Principles of pneumatic system design. Proportional pneumatic drive - 6h.
6. Machine design. Development of rational construction of machines. Increasing strength and safety in dynamic loads. Creative process in machine design - 8h.
7. Machine elements, their strength, and durability calculations. Calculation of mechanical transmission - 6h.
8. CAD/CAE technologies. New concepts for using CAD/CAE in the product design process. Research using CAD includes the development of design methods and shapes, including the creation of high-complexity shapes, intelligent design and analysis, computational geometry, parametric modeling of 3D objects, and free-form surface design – 8h.
9. Kinematics and dynamics analysis of assembly 3D models in CAD/CAE software. Defining 3D digital prototype parameters (material selection, finite element mesh parameters, product shape) and external factors (forces, moments, gravity, springs, dampers, friction, contacts) and analysis with the computer simulations. Results of simulation, their physical nature and methods of verification – 8h.
10. Fluid flow simulation. Results of simulation, their physical nature and methods of verification – 8h.
11. 3D scanning and prototyping – 6h.
12. Modelling of dynamic systems. Application of the principles of systems theory in the modelling of physical systems. Methods of Physical systems modelling. Compilation of differential equations for complex systems. Use of computer programs in the modelling of dynamic systems - 8h.

13. Manufacture of machinery. Principles of the Fourth Industrial Revolution in Mechanical Engineering. Use of nanomaterials in machine building. Use of 3D technologies in mechanical engineering - 6h.

Requirements for awarding credit points

Individual studies under the guidance of a lecturer, which ends with a successful passing of the doctoral examination.

Description of the organization and tasks of students’ independent work

The student learns the topics independently and prepares for the exam.

Criteria for Evaluating Learning Outcomes

The doctoral student passes the doctoral examination by answering the questions.

Compulsory reading

1. Wilson C.E., Sadler J.P. Kinematics and Dynamics of Machinery. New York, Harper Collins College Publishers. 1993. – 797 p.
2. Gere, James M. Mechanics of Materials./ James M. Gere. – 6th ed. – Belmont, CA. Etc.: Thomson – Books/Code, 2004. - 940 p.
3. Budynas R., Nisbett K., Shigley's Mechanical Engineering Design, 10th edition. McGraw-Hill Education, 2014. – 1104 p.
4. Encyclopaedia of materials: Science and Technology/ edited by K.M.Jurgen Buchow [et al.] Volume 1. Till 10.,2001., Elsevier Science Ltd, - 913 p. Modeling of dynamic systems with engineering applications / Clarence W. de Silva. CRC Press, Taylor & Francis Group, 2018. – 671 p.

5. Modeling and analysis of dynamic systems / Ramin S. Esfandiari, Bei Lu. CRC Press, Taylor & Francis, 2014. – 548 p.

Further reading

1. Kurowski P. M. Engineering Analysis with SolidWorks Simulation 2016. Mission, KS : SDC Publications, 2016. 566 p. ISBN 9781630570057.
2. Tickoo S. SolidWorks 2015 for designers. Schererville: CADCIM Technologies, 2015. 1066 p.
3. Norton, R. Design of Machinery, 5th edition. McGraw-Hill Education, 2011. – 857 p.
4. Joseph D., Renardy Y. Fundamentals of Two – Fluid Dynamics. New York: Springer, 1993. - 441 p.

5. Dynamic systems. Modeling, analysis and simulation / / Finn Haugan, Tapir academic press, Trondheim, 2004. – 213 p.

Notes

Doctoral study program “Agricultural Engineering”, special course of the sub-branch direction.