Vaclav O.

I am a vibration and FEA expert with 10 years of professional experience. I hold a PhD in Structural Dynamics and I am a Chartered Mechanical Engineer (CEng MIMechE). I diagnose vibration issues, validate structures with FEA, and optimise mechanical designs for strength, durability, and reliability using advanced engineering simulations. I deliver clear reports, data-driven insights, and practical recommendations, giving you the confidence to make safe and efficient engineering decisions. ⚙ FEA: Static, Transient & Fatigue Analysis ⚙ ✔ FEA for structural integrity: strength, stiffness, stability, and deformation under realistic loading ✔ Transient FEA: impacts, shocks, rapid load changes, and start-up/shutdown events ✔ Non-linear FEA: contact, plasticity, material nonlinearity, and large-deformation behaviour for complex structures ✔ Fatigue & durability prediction: stress-life and strain-life methods to reduce failure risk and extend service life ✔ Design optimisation: eliminate hotspots, improve stiffness, and increase overall reliability ✔ ANSYS Mechanical, Salome_Meca, Code_Aster and Paraview user ⚙ Vibration Engineering & Dynamic Analysis ⚙ ✔ Vibration troubleshooting & resonance control: resonance mapping, mode tuning, root-cause diagnostics ✔ Modal analysis, EMA/OMA & testing: damping estimation, mode-shape interpretation, shaker campaigns, sine/random vibration, shock testing ✔ Signal processing & data interpretation: accelerometer-based insights, FFT, waterfalls, envelope methods, feature extraction, spectral analysis, DAQ and test-setup planning ✔ Python for vibration analysis: automated diagnostic pipelines and ML-based anomaly detection ✔ R&D support and development of clients’ in‑house vibration analysis capability ✔ Design optimisation for vibration performance: stiffness tuning, mass distribution, damping and dynamic response refinement ⚙ Rotordynamics & High-Speed Machinery FEA ⚙ ✔ Critical-speed and stability assessment for pumps, compressors, turbines, and other rotating machinery ✔ System-level rotordynamics evaluation: Campbell/Bode analysis and run-up / coast-down behaviour for multi-stage rotors, pump trains, and rotor-bearing systems ✔ FEA for rotating components: blades, impellers, rotors, couplings, and high-speed assemblies assessed for stiffness and deformation control ✔ FEA for static components: casings, housings, pump volutes, bearing pedestals, and structural frames analysed for load transfer, thermal effects, and long-term reliability ✔ Design refinement for rotating machinery: mass-stiffness balancing, blade/impeller geometry tuning, and structural improvements that enhance performance and reduce maintenance issues ⚙ CAD / Mechanical Design Modifications ⚙ ✔ Structural refinement & geometry optimisation: ribbing, filleting, thickness tuning, load-path improvements, and mass redistribution to eliminate stress hotspots ✔ CAD updates: translating engineering recommendations directly into updated CAD models ⚙ What I Bring to Your Project ⚙ ✔ Highest engineering standards – I adhere to recognised engineering codes of ethics and avoid pirated software, half-ready solutions, or any practices that could compromise your project. ✔ Clear communication & responsiveness – fast replies, transparent progress updates, and clear explanations of technical topics. ✔ Actionable outputs & implementation support – practical recommendations you can apply immediately, plus guidance during and after the project. ✔ Reliable delivery – on time, within budget, and to the agreed technical quality. ⚙ Typical Deliverables ⚙ ✔ Action-oriented engineering reports – clear conclusions, safety margins, and practical recommendations (typically 5–12 pages, concise and decision-ready). ✔ Vibration & rotordynamics outputs – Bode/Campbell diagrams, frequency spectra, waterfall plots, and ODS/modal shapes with safe-operating ranges and tuning advice. Typical outcome: vibration reductions of 40–70% in problematic speed bands after design, support, or balance adjustments. ✔ FEA results & design changes – stress/fatigue plots, modal frequencies, safety-factor maps, stiffness checks, and targeted geometry up ➡️ Get in touch if you’d like an initial review of your vibration or FEA challenge — we can discuss the best approach by chat or jump on a short intro call ➡️