480-4028/01 – Simulation of Compensation for Flexible Tools (SKFN)

Gurantor departmentDepartment of PhysicsCredits5
Subject guarantorprof. Ing. Libor Hlaváč, Ph.D.Subject version guarantorprof. Ing. Libor Hlaváč, Ph.D.
Study levelundergraduate or graduateRequirementChoice-compulsory type A
Study languageCzech
Year of introduction2018/2019Year of cancellation
Intended for the facultiesFEI, USPIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
HLA57 prof. Ing. Libor Hlaváč, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+2

Subject aims expressed by acquired skills and competences

Student characterises physical relations leading to the flexible tool trajectory curvature inside material. Student is able to formulate rules using physical equations that he analyses. Student predicts parameters of tool necessary for interaction with material.

Teaching methods



The aim of the course is to acquaint students with theoretical and experimental ways of describing typical features left by the traces of flexible jets on the material, ways of compensating and simulating these compensations. The main benefit should be to familiarize students with the negative features of working with flexible tools, to learn how to predict their size according to the type of material, its dimensions, the speed of material processing and other factors. The student should learn whether a theoretical or experimental approach is appropriate to solve the problem, whether the necessary precision can be achieved by the use of compensation, or whether the flexible tool is inappropriate in application due to the impossibility of executing the required precision, enormous costs, environmental damage, etc.

Compulsory literature:

Hlaváč, L., Vašek, J.: Physical Model of High Energy Liquid Jet for Cutting Rock. International Journal of Water Jet Technology. Gloucester, vol. 2, no. 1, ISWJT, Canada, 1994, p. 39-50. ISSN 1180-0402 Hlaváč, L.M., Jančárek, A., Kušnerová, M., Mádr, V., Martinec, P.: Vicinage of the laser beam impact zone in rocks. Proceedings of SPIE, vol. 5445, 2004, p. 372-375. ISSN 0277-786X, ISBN 0-8194-5368-4 Hlaváč, L.M., Palička, P.: Testing of parameters for turning by abrasive water jet. In Water Jetting, BHR Group, United Kingdom, 2006, p. 123-128. ISBN 1-85598-080-0 Hlaváč, L.M.: Investigation of the Abrasive Water Jet Trajectory Curvature inside the Kerf. Journal of Materials Processing Technology, (doi:10.1016/j.jmatprotec.2008.10. 009) 209(8), 2009, p. 4154-4161. ISSN 0924-013

Recommended literature:

Hlaváčová, I.M., Hlaváč, L.M., Gembalová, L., Matýsek, D.: Propagation of the abrasive water jet in free air and through material. In: 19th International Conference on Water Jetting, P. Longman (ed.), BHR Group, United Kingdom, 2008, p. 21-30. ISBN 978-1-85598-104-1 Hlaváč, L.M., Hlaváčová, I.M., Gembalová, L., Kaličinský, J., Fabian, S., Měšťánek, J., Kmec, J., Mádr, V.: Experimental Method for Investigation of the Abrasive Water Jet Cutting Quality. Journal of Materials Processing Technology, (doi:10.1016/j.jmatprotec. 2009.04.011) 209(20), 2009, p. 6190-6195. ISSN 0924-0136 Hlaváč, L.M., Hlaváčová, I.M., Gembalová, L., Jonšta, P.: Experimental investigation of depth dependent kerf width in abrasive water cutting. In: 20th International Conference on Water Jetting, F.H. Trieb (ed.), BHR Group, United Kingdom, 2010, p. 459-467. ISBN 978-1-85598-121-8

Way of continuous check of knowledge in the course of semester

Tests, projects, written and oral examinations, systematic preparation for lectures


Not available

Other requirements

Systematic preparation for lectures.


Subject has no prerequisities.


Subject has no co-requisities.

Subject syllabus:

1. Analysis of physical reasons for changes of flexible tool trajectory direction during penetration through material. 2. Physical description of jet trajectory using material and tool properties. 3. Determination of the key parameters influencing trajectory of the given tool type (laser, plasma, liquid jet). 4. Determination of the two basic deviations of the trajectory by penetration of the tool through material – divergence and delay. 5. Determination of the necessary compensations from theoretical models of tool operation. 6. Determination of compensations according to experimental results, determination of typical shapes for calculations of compensations. 7. Analysis of the relation of compensations on machining factors - dynamic modes of changes.

Conditions for subject completion

Full-time form (validity from: 2018/2019 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 33  17
        Examination Examination 67  18
Mandatory attendence parzicipation: Compulsory attending of exercises, maximum potential unexcused absence 20%.

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Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2020/2021 (N0533A110006) Applied Physics PTK P Czech Ostrava 1 Choice-compulsory type A study plan
2020/2021 (N0533A110006) Applied Physics TPM P Czech Ostrava 1 Choice-compulsory type A study plan
2019/2020 (N0533A110006) Applied Physics PTK P Czech Ostrava 1 Choice-compulsory type A study plan
2019/2020 (N0533A110006) Applied Physics TPM P Czech Ostrava 1 Choice-compulsory type A study plan
2019/2020 (N1701) Physics (1702T001) Applied Physics P Czech Ostrava 1 Choice-compulsory study plan
2018/2019 (N1701) Physics (1702T001) Applied Physics P Czech Ostrava 1 Choice-compulsory study plan

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