CAE engineer

Youqing Yang

Location: Minneapolis, MN

Summary:

A CAE Engineer enthusiastic about applying Finite Element Methods and other methods to solve science and engineering problems. Expert in developing analytical and numerical solutions and using commercial software for static analysis, vibration frequency, mode, predicting dynamic stress, buckling, fatigue damage, and multiphase flow in which both solid phase and fluid phase are involved. I help companies optimize product designs and gain customer trust.

Education:

Doctor of Philosophy, Structural Engineering, University of Missouri, Columbia

Master of Science, Mechanical and Aerospace Engineering, Peking University

Bachelor of Science, Geology and Seismology, Peking University

Skills:

Finite Element Analysis (FEA)

Computational Fluid Dynamics (CFD)

Discrete Element Method (DEM)

Material Point Method (MPM)

Smoothed Particle Hydrology (SPH)

Unix

Numerical Analysis

Modeling and Simulations

Structural Analysis

Stress Analysis

Thermal dynamics

C++

FORTRAN

Python

MATLAB

ANSYS (Workbench, APDL, FLUENT, Space Claim)

FEMAP/NASTRAN/PATRAN

ABAQUS

Rocky DEM

EDEM

Autodesk 360 Fusion

3D CAD: Autodesk Inventor

Solid Works

Creo

Space Claim

Hyper mesh

Hyper works

opt Struct

CATIA V5

Metals

Laminated Composite Design Optimization

Selected Publications:

Youqing Yang, Modeling Charge Motion in an Industrial SAG Mill Using DEM and SPH Coupling Simulations at Society for Mining, Metallurgy & Exploration · Feb 28, 2023

Youqing Yang, Amit Saxena, Quantifying SAG Mill Liner Survivability and Wear Life at Canadian Institute of Mining, Metallurgy and Petroleum May 3rd, 2022.

Youqing Yang, Pengtao Sun, Zhen Chen, 2017, Simulation of multiphase interaction using the combined DEM-MPM, Commun. Comput. Phys. Vol. 21, No. 5, pp. 1258-1281

Youqing Yang, Zhen Chen, Yuwen Zhang, 2016, Melt flow and heat transfer in laser drilling, International Journal of Thermal Sciences, Vol. 107 pp. 141-152

Experience:

01/2025 – 03/2025

Sinopec Tech Houston Center, Houston, TX.

Senior Engineer

Developing finite element analysis code for simulation of petroleum production. The code solves the complicated processes involves the interaction between geomechanically deformation and pore pressure change.

My work includes evaluation of the existing code and debugging by using VS Code, adding new features such as the effects of initial conditions, and new type of boundary conditions and the like on this Open MPI based parallel computing program written in Fortran 90 with Intel solver.

Paraview is used for visualization of computing results. I verified the new solution by comparing it with classic analytical solutions.

06/2024 – 08/2024

L & T technical Service, Peoria, IL (REMOTE)

Structure Analysis Engineer

Analyzing NASA project of Fuel Tank Destruct Assembly using FEA for evaluating dynamic environmental effects using Opti Struct and Hyper Works.

Analyzing Skin Severance Destruct Assembly in a dynamical environment using Opti Struct and Hyper Works.

Evaluated the effect of static loading on test-bench using FEM in SolidWorks.

12/2023 – 01/2024

Schlam Americas Inc, Tuscan, AZ (REMOTE)

FEM Engineer

Developed FEA models of excavator BDT1039 for fatigue life analysis using Opti Struct and Hyper Works.

Optimized the designs for truck dump body WA1200 and R9400.

Analyze the load effects on the excavator bucket in loading and unloading cycle.

09/2019 – 03/2023

ME Elecmetal Inc, Minneapolis, MN

Principal Mechanical Engineer

Developed numerical methods for particle trajectory simulation using DEM in crusher, SAG, AG, Ball, and Rod mills.

Created FEA models of mill liner castings to analyze bolting, contact, and operational stresses. Root cause study on liner fracture and fatigue life analysis.

Led design optimization projects by coordinating with marketing and manufacturing. Developed 2-way coupling between DEM and CFD analysis for slurry effects in SAG mills.

Analyzed results from modeling simulations which identified design flaws and defects to be redesigned, resulting in improved performance of key products.

Conduct classical analysis using free body diagram, conservation laws for liner and bolting failure.

Simulate slurry flow through SAG mills using Ansys Fluent.

Created SAG mill shell liners and end liners designs and evaluated the performance and made optimization.

Developed new liners of composite material using rubber, ceramics and cast alloy.

Educated sales personnel and customers on product design flaws and corrections to eliminate misunderstandings about the product design quality, which resulted in greater customer retention.

Selected by senior management to create and present in technical sessions at international conferences.

06/2016 – 08/2019

ME Elecmetal Inc, Minneapolis, MN

Senior Engineer

Developed structural optimization methodology for grinding mills to improve throughput, energy efficiency, and extended liner wear life.

Created a simulation scheme for analyzing SAG mill liner breakage and validated algorithms for modeling wear history.

Develop analytical solutions and simple hand calculation for model verification and calibration.

Created a complete set of approaches to evaluate the discharge efficiency of the product, which resulted in a more comprehensive and accurate view of the proposed design.

Simulated dynamic stress on grinding mill shell liners for the root cause of premature failure using Ansys Workbench.

Developed a set simulation scheme to optimize mill operation conditions, including grinding media charge level, ore charge level, mill rotation speed, and discharge flow rate. This helped clients gain energy and material efficiencies, product output, and increased profitability.

Analyzed the impact on ladle using free-body diagram Derived analytical solution for grinding ball impact on shell liners. Analyzed the dynamic effects of geometry error in rotation mechanism using hand calculation.

Created SAG mill shell liners using CAD-Autodesk Inventor.

10/2012 – 05/2016

Metso Minerals, Colorado Springs, CO

Simulation Specialist

Developed advanced simulation program that combines CFD with DEM for wet grinding process in which water and fine particles were explicitly included.

Calculate mill power draw, and ore particle collision energy for rock breakage model.

Developed numerical analysis tools, including discrete element method, material point method, and control volume method for simulating solid-liquid interactions, thus providing a high-fidelity simulation tool for the mineral processing industry.

SPH method, developed for simulation interstellar gas (plasma) and other celestial bodies, is also used in the simulation.

Validated the simulation code and applied the new method to vertical mill blade optimization.

Failure analysis of blast-resistant window panel design made of polycarbonate composite.

Optimized laminated composite structure design using FEA.

Conduct classical analysis using free body diagram, conservation laws for multiphase flow.

Made code for simulating laser drilling that involves multi-physics including heat transfer and melt flow.

The liquid flow is simulated using classic boundary layer method and other methods. The research result got published in the Journal of Thermal Sciences.

Stress analysis on pre-stressed fuel tank subject to laser-beam heating using FEM, using FEMAP for pre/post-processing.

Code verification using Abaqus, Ansys, and Nastran.

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