Thermal mechanical simulation, fatigue life for engine liner

Member of Joining & Advanced Structures team for Product Development & Global TechnologyResponsibilities: Support Caterpillar continuous product improvement (CPI) and new product introduction (NPI) through FE stress analysis, fatigue life assessment and virtual validation• Performed structural analysis and fatigue life analysis, evaluating new products and providing suggestions for field issue fixes on Cat large structure machines: Bulldozer, Hydraulic Excavator, Marine Engine, Wheel Loader, Mining Truck, Wheel Loader, Backhole Loader, and etc. • Coordinated with cross-functional teams with design engineers, VPD engineers, testing engineers and manufacturing engineers for fatigue life assessment on NPI and CPI • Communicated results to customers, suppliers, team members, provide the most efffective and actionable solutions and recommendations for product design/manufacturing issues • Mentored analysis engineers from different divisions for fatigue life assessment using strucutral stress(BSS) and fracture mechanicl method • Worked with core research groups to achieve TRL (Technology Readiness Levels) for technology development: Finite elment alternating method, Battelle structural Stress Method, Validtion Methods for Tubular Stress, Weld Sizing Design Tool, Battelle Structural Stress for Weld Root Failure• Conducted FMEA and Risk Assessment as a part of NPI programs Skills used: Abaqus, Hypermesh, Nastran, Creo Simulate, Creo Mechanism, Weldsense, DATK, Hyperview, Cubit, Python, FEAM, Matlab, Excel, MathCAD, Battelle Structure Stress, HSS

• Investigated interface behavior and delamination wear for diamond-coated cutting tools, including interface cohesive modeling(CZM), stress analysis and fractrue analysis. • Developed coupled thermo mechanical simulation for EBAM(Electron Beam Additive Manufacturing) process • Performed stress analysis and 3D modeling for temporomandibular joint(TMJ) implants• Conducted CNC machining on composite matrix and Al alloy using diamond-coated toolsSkills used: Abaqus, ANSYS, XFEM, Creo Simulate, Creo Parametric, Solidworks, Matlab

• Worked with GM global research labs to increase reliability of CVD diamond-coated cutting tools, designed tests to evaluate cutting tool reliability and developed a 3D finite element model to simulate scratch testing • Prepared technical documents, manuscript, presentation and results in external publication Skills used: Abaqus, XFEM, Minitab

• Analyzed the grinding efficiency and mechanism in magnetic fluid grinding steel ball• Optimized the lubrication performance for a kind of cellular material with sweat-gland structure• Performed structure optimization, thermal stress/strain analysis for disc brake components and engine valves• Conducted algorithmic research on vector control of asynchronous motor of electric vehicle