1. FEA simulation for load-bearing systems in machinery
Belarusian National Technical University
Mechanical engineering faculty
department “Metal-Cutting Machines and Tools”
Head – assoc. prof., PhD. Stanislau S. Dounar

2. FEA of LBS in statics and dynamics
We deal with load-bearing systems (LBS) in machinery.
LBS – it is just any loaded structure in different machine-building branches.
We are doing simulation by Finite Element Method (FEM, FEA), then - optimization of LBS.
Our specific area is machine tool design and assessment.

3. FEA simulation for machinery
Our activities include:
Computer simulation of loaded structures (mainly by FEA)
Rigidity assessment in static and dynamic states.
Searching key regions, for rigidity.
Reinforcement solutions
Detection of stress concentrators
Stress alleviation solutions
Resonance frequencies and modes finding.
Resonance omitting and management

4. Rigidity and strength in statics
Rigidity comparing for two design variants of machine tool
Stress concentrators finding for automotive transaxle

5. Extralarge Gantry-type machine tool

6. Deformation under self-weight

7. “Travelling column” machine tool of extra height – 7 meters
Bending resonance at 11.7 Hz
Twisting resonance – 35.1 Hz

8. Oscillations of Skoda machine tool due to rotating force

9. FEA of extra heavy lathe (EHL) for rotor machining
Lathe for ø2500 mm rotor of 61 ton weight in assembly
Simulation of gravity settling of shaft and lathe base, µm

10. Resonance of support (89,7 Hz) with shaft stand still for EHL

11. Dynamics of thin-walled machined structures
Turning, milling of thin-walled huge composite tube
Curved oil tube vibrates during facing

12. Resonance tube oscillations at 92 Hz induced by machining

13. FEA for rod centerless lathe
Turning of extra-long rod. Lathe vibrates at 126 Hz.
Next resonance (271 Hz) should be omitted.

14. Design fault revealed - strong 171 Hz resonance of guide box

15. Stresses inside press LBS
Peat brick press
Press geometry
Stresses inside press LBS

16. Press design and stresses at top dead point of crankshaft

17. Stress concentration (relatively limited and blurred)

18. Excavator’s boom holds 500 kg weight

19. FEA modeling for Parthenon
Famous Parthenon. Greece.
Contact pressure between marble blocks.

20. Parthenon. Gravity. Stones joined only by friction

21. Contacts
Address: B.Khmelnitsky Str, 9, building 6, Minsk, Belarus,
Phone: 
Our channel You Tube:
Head: assoc. prof., PhD. Stanislau S. Dounar