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Hydraulic and thermal systems in mobile machines

Eserkegenova Bekzat Zhambylkyzy

Description: This course explores the fundamentals of hydraulics and the types of hydraulic systems in mobile machines. Students analyze the operating principles of hydrostatic and hydrodynamic systems and drives, their main components, and assemblies. Students examine the design of hydrostatic drives and hydromechanical transmissions. Students analyze the fundamentals of thermal engineering and heat transfer processes. Students study the design and operating principles of thermal control systems for components and assemblies in mobile machines.

Amount of credits: 6

Пререквизиты:

Physics

Course Workload:

Types of classes	hours
Lectures	45
Practical works	15
Laboratory works
SAWTG (Student Autonomous Work under Teacher Guidance)	30
SAW (Student autonomous work)	90
Form of final control	Exam
Final assessment method	Exam

Component: University component

Cycle: Profiling disciplines

Goal

Study of the basic laws and principles on which hydraulic and thermal systems are based, as well as their components.

Objective

Study of the basic laws and principles on which hydraulic and thermal systems are based, as well as their components.

Learning outcome: knowledge and understanding

The student will know and understand the physical principles of hydrostatics, hydrodynamics, and heat transfer, as well as the design principles, classification, and performance characteristics of hydraulic drive components (pumps, hydraulic motors, control units) and cooling systems for mobile machines.

Learning outcome: applying knowledge and understanding

The student will be able to apply methods of hydraulic and energy calculations of drives and control devices, as well as use engineering formulas and reference data to diagnose and optimize thermal conditions and the efficiency of hydraulic systems of mobile machines (including mining and transport equipment).

Learning outcome: formation of judgments

The student will be able to assess the technical condition and justify the choice of design solutions for hydraulic and thermal systems, make decisions to prevent malfunctions (for example, cavitation or overheating of the working fluid) and formulate judgments about the safety and reliability of systems.

Learning outcome: communicative abilities

The student will be proficient in professional engineering terminology to effectively present design and calculation solutions for hydraulics and thermal engineering, and will be able to work effectively in a team when discussing equipment malfunctions and maintenance methods.

Learning outcome: learning skills or learning abilities

Students will develop the skills to independently study new types of hydraulic equipment and heat exchangers, enabling them to continuously improve their skills and master innovative technologies in the fields of transport and mining equipment.

Teaching methods

• Problem-Based Learning: Students are challenged to solve practical problems and assignments related to hydraulic and thermal systems found on mobile machines, which encourages independent problem-solving and develops critical thinking. • Information and Communication Technologies: Use of electronic textbooks and online resources to access reference information and perform calculations. • Contextual Learning: Study of the subject through real-world examples, using diagrams and drawings of specific transport and transport-technological machines.

Assessment of the student's knowledge

Teacher oversees various tasks related to ongoing assessment and determines students' current performance twice during each academic period. Ratings 1 and 2 are formulated based on the outcomes of this ongoing assessment. The student's learning achievements are assessed using a 100-point scale, and the final grades P1 and P2 are calculated as the average of their ongoing performance evaluations. The teacher evaluates the student's work throughout the academic period in alignment with the assignment submission schedule for the discipline. The assessment system may incorporate a mix of written and oral, group and individual formats.

Period	Type of task	Total
1 rating	Lecture 1	0-100
	Lecture 2
	Lecture 3
	Lecture 4
	Lecture 5
	Lecture 6
	Practical Assignment 1
	Practical Assignment 2
	Practical Assignment 3
	Practical Assignment 4
	Practical Assignment 5
	Practical Assignment 6
	Practical Assignment 7
	Midterm Test 1
	Practical Assignment 8
2 rating	Lecture 7	0-100
	Lecture 8
	Lecture 9
	Lecture 10
	Lecture 11
	Lecture 12
	Practical Assignment 9
	Practical Assignment 10
	Practical Assignment 11
	Practical Assignment 12
	Practical Assignment 13
	Practical Assignment 14
	Midterm Test 2
Total control	Exam	0-100

The evaluating policy of learning outcomes by work type

Type of task	90-100	70-89	50-69	0-49
Type of task	Excellent	Good	Satisfactory	Unsatisfactory
Completion and defense of practical work.	1. The work is completed in full, accurately, and with necessary explanations. The initial data, calculation results, units of measurement, and conclusions are provided. 2. Calculation diagrams (figures, drawings) are accurately completed using drawing tools or graphics programs. 3. When defending the work, the student is well-versed in the material, has a command of the terminology, and fully answers additional questions.	1. The work is completed in full, with only minor comments, accurately, and with necessary explanations. The initial data, calculation results, units of measurement, and conclusions are provided. 2. Calculation diagrams (figures, drawings) are accurately completed using drawing tools or graphics programs. 3. When defending the work, the student is not sufficiently familiar with the material, makes inaccuracies in terminology, and has difficulty answering additional questions.	1. The work is poorly executed and inaccurate; necessary explanations are missing; source data, calculation results, units of measurement, or conclusions are missing. 2. Calculation diagrams (figures, drawings) are poorly executed or contain errors. 3. When defending the work, the student is poorly versed in the material, has poor command of the terminology, and makes errors in answering questions about the work.	1. The work is completed in full, accurately, and with necessary explanations. The initial data, calculation results, units of measurement, and conclusions are provided. 2. Calculation diagrams (figures, drawings) are accurately completed using drawing tools or graphics programs. 3. When defending the work, the student is well-versed in the material, has a command of the terminology, and fully answers additional questions.

Evaluation form

The student's final grade in the course is calculated on a 100 point grading scale, it includes:

40% of the examination result;
60% of current control result.

The final grade is calculated by the formula:

FG = 0,6	MT₁+MT₂	+0,4E
	2

Where Midterm 1, Midterm 2are digital equivalents of the grades of Midterm 1 and 2;

E is a digital equivalent of the exam grade.

Final alphabetical grade and its equivalent in points:

The letter grading system for students' academic achievements, corresponding to the numerical equivalent on a four-point scale:

Alphabetical grade	Numerical value	Points (%)	Traditional grade
A	4.0	95-100	Excellent
A-	3.67	90-94	Excellent
B+	3.33	85-89	Good
B	3.0	80-84
B-	2.67	75-79
C+	2.33	70-74
C	2.0	65-69	Satisfactory
C-	1.67	60-64
D+	1.33	55-59
D	1.0	50-54
FX	0.5	25-49	Unsatisfactory
F	0	0-24	Unsatisfactory

Topics of lectures

Topic 1
Topic 2
Topic 3
Topic 4
Topic 5
Topic 6
Topic 7
Topic 8
Topic 9
Topic 10
Topic 11
Topic 12

Key reading

1. Hydraulics, hydraulic machines and hydropneumatic drive: a textbook for universities / edited by S. P. Stesin. - Moscow: Academy, 2005. - 335 p. - (Higher professional education). - Bibliography: p. 332. - https://www.ektu.kz/usercontrols/library/LibraryFiles/%D0%94%D0%9A_%D0%9C%D0%B0%D1%88%D0%B8%D0%BD._%D0%B8_%D0%A2%D0%9A%D0%9C.pdf 2. Lepeshkin A. V. Hydraulics and hydropneumatic drive: a textbook / A. V. Lepeshkin, A. A. Mikhailin, A. A. Sheipak. - 3rd ed., stereotype. - M.: MGIMO, 2005. - Part 2: Hydraulic machines and hydropneumatic drive / edited by A. A. Sheipak. - 2005. - 350 p.: fig. - Bibliography: pp. 349-350. - https://www.ektu.kz/usercontrols/library/LibraryFiles/%D0%94%D0%9A_%D0%9C%D0%B0%D1%88%D0%B8%D0%BD._%D0%B8_%D0%A2%D0%9A%D0%9C.pdf 3. Pastoyev, I. L. Hydropneumatic drive: Textbook for universities / I. L. Pastoyev, N. I. Berlizev, V. F. Elenkin. - 2nd ed. - Moscow: Moscow State Mining University, 2000. - 32 p. - (Higher mining education). - Library of Congresses. - https://www.ektu.kz/usercontrols/library/LibraryFiles/%D0%94%D0%9A_%D0%9C%D0%B0%D1%88%D0%B8%D0%BD._%D0%B8_%D0%A2%D0%9A%D0%9C.pdf

June 12, 2023 - National mourning day in the Republic of Kazakhstan