Course code MašZ4055

Credit points 1

Dynamics of Machines III

Total Hours in Course40

Independent study hours40

Date of course confirmation21.03.2017

Responsible UnitInstitute of Mechanics and Design

Course developers

author lect.

Mareks Šmits

Mg. sc. ing.

author Mehānikas un dizaina institūts

Ēriks Kronbergs

Dr. sc. ing.

author lect.

Mārtiņš Dauvarts

Bc. sc. ing.

Prior knowledge

Fizi2021, Physics I

LauZ4190, Theoretical Mechanics II

Mate1029, Mathematics I

Mate1030, Mathematics II

Meha4008, Theoretical Mechanics I

Course abstract

The aim of the study course is to get knowledge about mechanisms , machines and their classification, as well as machine units and their formation. Students learn the structure of mechanisms and their classification, as well as kinematic analysis. Understanding of the mechanism and machine dynamics serves as the base for solving problems of vibration isolation of machines.

Learning outcomes and their assessment

Knowledge - is familiar with the laws and operation of machinery and mechanisms. Knows the theoretical foundations of the actual motion detection and provision of machine units. Knowledge of graphical and analytical methods of analysis and design of
mechanisms and machines - defense of the course work.
Skills - are able to solve problems of machine and mechanism structure, kinematic, dynamic parameter optimization and machine
vibration protection - defense of the course work.

Competence - Ability to use the acquired professional knowledge and skills in practical work and studies for solving engineering problems - defense of the course work.

Course Content(Calendar)

1. Structure analysis of rod mechanism. (practical work - 2h)
2. Analytical kinematics of the mechanism. (practical work - 2h)
3. Graphical speed plans. (practical work - 4h)
4. Graphic acceleration plans. (practical work - 4h)
5. Evaluation of analytical and graphical kinematic analysis - Defence of the course work. (practical work - 2h)
6. Calculation of geometrical parameters of gears. (practical work - 2h)
7. Graphic Gear Gear Construction. (practical work - 2h)
8. Graphical Gear Gear Construction. (practical work - 4h)
9. Synthesis of planetary transmission. (practical work - 2h)
10. Synthesis of planetary transmission. (practical work - 2h)
11. Development of Planetary Transmission Drawing - Defence of the course work. (practical work - 4h)
12. Analysis of Mechanism Vibro-Insulation. (practical work - 2h)
13. Dynamic oscillator calculation. (practical work - 2h)
14. Dynamic oscillator evaluation. (practical work - 2h)
15. Final presentation of the course paper. (practical work - 2h)

16. Defending the final of the course work. (practical work - 2h)

Requirements for awarding credit points

Test with a mark to be able to compute with the computer, the part of the text must be typed, deadlines must be observed. While defending the work, one must be able to argue the results of the calculations, be familiar with the methods of designing the mechanisms and their application. The mark of the test depends on the quality of the course work and the defense skills.

Description of the organization and tasks of students’ independent work

The course paper is performed independently according to the specified conditions. Acquire unclear questions from literature. The course paper is presented after its completion.

Criteria for Evaluating Learning Outcomes

The assessment of the test depends on the cumulative assessment of the completion and defense of the sections of the course work.

Compulsory reading

1. Svētiņš J., Kronbergs Ē. Taisnzobu cilindrisko zobratu pārvada sintēze. 2009. 21 lpp. LLU e - studiju metodiskais materiāls.
2. Svētiņš J., Kronbergs Ē. Planetāro pārvadu sintēze. 2009. 11 lpp. LLU e - studiju metodiskais materiāls.
3. Ozols O. Mehānismu un mašīnu teorija. Rīga: Zvaigzne, 1974. 418 lpp.

4. Rudņevs J., Ziņģis K. Mehānismu un mašīnu teorija. Rīga: Zvaigzne, 1986. 285 lpp.

Further reading

1. Eckhardt H.D. Kinematic Design of Machines and Mechanism. New York: McGraw-Hill, 1998. 612 p.

2. Wilson C.E, Sadler J.P. Kinematics and Dynamics of Machinery. New York: Harper Collins College Publishers, 1993. 797 p.

Periodicals and other sources

1. Machine design. Pieejams:


The study course is included in the compulsory part of the Bachelor's study program in Agricultural Engineering at Faculty of Agricultural Engineering. 4th study year 7th semester.