Practical engineering philosophy

Diagram comparing earthquake resistance methods. The top section shows a structure with massive wall or braces to withstand shaking, marked with a red X indicating incorrect method. The bottom section shows a structure with flexible framing and additional supports, marked with a green check indicating correct seismic resistance strategies.

Engineering diagram of a calibrating fixture with red and gray parts, labeled for water release and flange adjustments, used for C30 Crush testing according to EN2 parameters.

A 3D visual diagram of a conveyor belt system with multiple yellow frameworks and green rollers, illustrating the movement path of objects along the conveyor.

Industrial foundations, walls and roof.

Client was in danger of building a warehouse with foundations holding 16kNm where 360kNm is required.

Reinforced concrete… Factory floor with custom foundations.

A huge disaster prevented. Floor redesigned, bridges, anchors … holding 200t loads, 2MNm bending, on soft wet soil.

Close-up view of steel reinforcement bars (rebar) arranged in a grid pattern on a construction site foundation, with areas of concrete and equipment in the background.

3D simulation of maximum principal stress distribution on a mechanical structure, with color gradient from blue to red indicating stress levels from 0 to 505.9 MPa. The structure appears to have two circular features on top and multiple vertical supports.

A 3D simulation model of a rectangular object with a color scale from blue to red indicating varying levels of some measurement, showing surface topography or stress distribution.

Colorful 3D digital model of a mechanical or architectural structure with a grid base, rectangular components, and various colored walls.

Concrete floor with a rectangular patch containing four drilled holes, likely for plumbing or electrical installation, at a construction site.

3D digital stress analysis of a mechanical component with color-coded stress levels, showing areas of high and low stress.

Rail road, heavy industry - Australia.

Product verified and passed certification for AU market

3D model of a blue, irregularly shaped object with a stepped structure, over a multicolored background with a legend on the left indicating scale from red to blue.

Railroad spring / damper system.

Client protected from bad design. Correct solution found.

A 3D stress analysis of a mechanical part showing deformation in blue with a color scale indicating stress levels.

Concrete truck attachment.

Recovery from a failed DIY attempt. 3 month project rescued in 3 weeks. In the end - verified and certified for Swedish market.

Metal automotive or machinery component placed on a wooden pallet in a workshop.

Inside a construction or industrial facility, a concrete cement truck is pouring materials into a large cement mixer truck with a chute. Three workers are present, observing and working near the trucks.

3D stress analysis model of a structural component with color codes indicating stress levels, labeled with the names 'Tomas' and 'Sabaliauskas'.

Rear Under Protection (RUPD) - car crash sim.

2tonnes heavy, 5m tall CNC machine.

A real patent... :)

Preliminary design.

A "research grade" task... experimental reinforcement.

Calibrated for crack propagation.

Overkill, but... dynamic load safe.

500 ULS cycles... EN3 compatible.

1. Fatigue safe
2. Feels stable (not "shaky").
3. Certifiable for CE mark. — 1. Fatigue safe 2. Feels stable (not "shaky"). 3. Certifiable for CE mark.

Natural frequency - below 10Hz is not good.

Stress in ULS case... ok

Displacements...

Manufacturing / production drawings generated...

Frame dynamic response - for shaky engines, and moving parts.

The frequency response is scary bad.

After adjusting, one frequency remains dominant, and is plausible to dampen effectively.

Thermal analysis

Thermal analysis is a BEAST…

Coupled with stress fields, fatigue, gets even harder.

Managing of tasks can benefit from “fast engineering feedback”. It often helps:

Project management timeline with multiple task lists related to construction and design projects. The timeline features violet bars showing task durations across several months, with red handwritten notes and arrows pointing at various parts of the chart, including annotations like A, B, C, D, and a note indicating "2x faster alt..".

Reality is perfect, it never makes an error.

It was not made for us, it knows not we exist.

Observe the unpredicted, predict the unobserved.

Inductive and deductive - converge to truth, not false (yet).

Nothing is true. Some is not false (yet).