VELLAISAMY C

ME (from GCT, Coimbatore) qualified mechanical engineer professional with 14+ years of finite element analysis (FEA) experience in construction and automotive industries. I extensively worked in backhoe loader, wheel loader, soil and asphalt compactor, excavator, and mining trucks. I also have an experience in Turbochargers. I am expertise in structural vibration (NVH), nonlinear static, thermal, LCF, HCF, weld fatigue, optimization, Thermal and Multiphysics. Highly motivated to work on my strengths and exploring new areas. I am currently working as “Manager-validation and verification” for Doosan Bobcat India pvt limited, Gummudipoondi.

• Developed leadership skills by coordinating the team as technical leader
• Developed customer focused research ideas, business effective communication and presentation skills Developed good knowledge on Thermo-mechanical fatigue evaluation of Turbochargers
• Developed structural testing knowledge on bench testing, machine specification test and strain measurements
• Acquired product knowledge on backhoe loaders, wheel loader machine, Compactor (DD and SD), Hauler, mining trucks, Turbocharger, and exhaust systems
• Developed good knowledge on fatigue evaluation of welded structure.Developed strong fundamentals in stress analysis and multi axial fatigue life calculation (durability).

Lean Six Sigma Black Belt

• Modeling welds for finite element analysis for extreme and fatigue load cases, DTF 2019, Seoul, South korea
• Dynamic calculations using Sub-modeling approach for obtaining structural stress histories, DTF 2020, Virtual conference

Backhoe loaders – Tractor-Loader-Backhoe

· Working on both side shift and Centre mounting variants.

· Hot spots are identified based on various loadcase for both loader and backhoe side developed by DBIN.

· strains are measured for different operating conditions. Signals are processed and load files are created using nCode.

· Strains are measured and correlated with the FE analysis.

· Fatigue strength of the components are evaluated in nCode using rain flow counting for various duty cycles.

· Developed methods for evaluating plastic Fuel tank as ISO 21507.

· ROPS and FOPS calculation to meet safety requirements as per ISO3471 and ISO 3449:2006.

· Evaluations of various brackets like engine, cooling mounting brackets by studying natural frequencies and stiffness analysis.

Challenge/Achievement:

· Base design is based on European market for 8000Hrs; Total design for 14000Hrs is modified based on the suggestion from FE analysis for Indian market.

· Also solved the failures of chassis, loader arm crack, boom, dipper arm cracks and various bracket from prototype testing.

· Improved designs are validated using bench test for 1000 hours in quick timeline.

· Plastic tank is finalized based on FE analysis and validated in ICAT for ISO requirements.

· Supported retrofitment activities for solving field failures.