Mechanical Engineer

Man Tak Ho

********@*****.***; 512-***-****

Summary:

Extensively experienced Mechanical engineer with bachlore’s degree in Mechanical Engineering and strong experience in analysis and design of Machine projects and Moving systems (motor industries).

Hands on experience with PTC Creo Pro/ ENGINEER, Windchill, CATIA, ANSYS Workbench, AutoCAD, SolidWork, used CATIA and ProE/ CREO in Large Synchronous Machine project, High Temperature Superconducting (HTS) Machine projects and Multi-megawatt level 1800rpm permanent magnet wind generators and high ratio magnetic gear, performed analysis, design, builds and tests a 20MW prototype which can be scalable to 50MW, developed new product line of permanent magnet wind generators.

Proficient in creating comprehensive bill of material, assemblies document, and detailed outline drawings, organizing and maintaining project document and drawing database, designed and created detailed drawings with GD&T ASME standard and the necessary tooling.

Have solid working knowledge of ME and FEA, vibration analysis, thermal analysis, rotating machinery skill and strong PRO/E and Windchill skill to complete the design of induction motors with horsepower between 1/2 to 2000.

Well versed in design and development of machines and tools; troubleshooted machines and components for mechanical problems; analyzed cost and efficiency of machine performance and manufacturing, researched, planned and designed mechanical and electromechanical products and systems using Autocad and ProE.

Engineering and Manufacturing challenges includes electromagnetic starting performances, pole surface thermal issues, rotor topologies trade-off, structural integrity due to large centrifugal forces and thermal stresses, rigid shaft design, critical speed issues caused by long bearing span and high RPM, precise, tight tolerance machining and rotor assemblies, rotor balancing due to large rotor, rotor field coils forming and insulation.

Experience in designing Medium Voltage Drive, designed the drive's cabinet, the structure for power electronic including circuit breaker.

Skills:

CATIA: Solid Molding & Sheet Metal

PTC Creo Pro/ENGINEER and Windchill: Solid Molding & Sheet Metal

ANSYS Workbench: System and Multiphysis, AutoCAD, SolidWorks

MS Office

Education:

BS, Mechanical Engineering, University of Kansas, Lawrence, Kansas

Project Management Professional (PMP), Project Management Institute certified

Experience:

GE Energy Connections, Plano, TX Present - April 16

Mechanical Engineer III, Critical Power Group

Design electrical/mechanical high-level concept design, translation of requirements to design requirements, development and test, manufacturability and serviceability. The ATS (automatic transfer switch) has movable contacts that make and break up to 3000A of AC current at voltages up to 600Vac.

• Identifies functional requirements and use-cases for new features and projects, including integration features with other products.

• Seeks to understand customer needs for workflows and module level problems.

• Contributes to Project charter, risk management plans, iterative development plan, and design review results for Projects

• Acts as project leader for New Features/modules level, with assistance for Projects that may be cross product and/or cross department.

• Translates the functional requirements into designs that support the user's needs. (This includes taking into account user's capabilities, limitations, and tasks he/she needs to perform.)

• Design is created under the limitations and understanding of, the technical architecture and tools available, design standards, and information display principles.

• Writes requirements/use cases and specifications for new features/modules that comply with industry and H&LP design standards.

• Conducts functional design reviews.

• Drives usability testing cycles

Tools: Creo/Pro E, Windchill

NovaTorque,Inc., Fremont, CA 2014 – Jan 16

Senior Engineer, Engineering Group

Develop products to motor industries. Projects include to design and build prototypes; value-added/ cost-down development for high-volume productions. Responsibilities include but not limited to:.

Research, develop and design new products. Create 3D models components and assemlies, analyze FEA engineering data to provide solid evidence for new products’ performance and reliability.

Design and create detailed drawings with GD&T ASME standard and the necessary tooling.

Analyze and interpret experimental test results versus design data in order to determine feasibility of designs and make improvements in experimental design.

Schedule planning of new product from design to complete build in the manufacturing plants in China.

Coordinate different teams to meet schedule, budget and scope.

Create comprehensive bill of material, assemblies document, and detailed outline drawings.

Organize and maintain project document and drawing database.

Tools: CATIA Solid works

PROJECTS & RESULTS:

NEMA frame size 140 development (Project Lead)

Develop products from concepts to market. Expand current company product line.

Engineering challenge includes “time to market”, cost, losses.

Analysis, design, builds and test several prototypes including assembly tooling .

NEMA frame size 210 TEFC, C-Face mounting development (Project Lead)

Create detailed 3D model and drawings for 7.5HP and 10HP motor for TEFC, TEAO, TENV application.

Design and test several different sizes injection mold plastic fans

Engineering challenge includes minimizing heat loss, friction loss

Project completed within 2 months, 1 month ahead planned schedule.

TECO-Westinghouse Motor Company, Round Rock, TX 2006 – 2014

Senior Engineer, Machine R&D Group

Develop products from concepts to commercialization. Solid engineering knowledge from concept, feasibility studies, design trade-off, analysis, detail design, manufacture and test prototype, to complete technology transferring production center. Using 3D model software such as CATIA and ProE/CREO.

Tools: CATIA and ProE/CREO

PROJECTS & RESULTS:

Large Synchronous Machine project (Project Lead and Mechanical Technical Lead)

Expand current capability on 4P (1800rpm) from 7MW to 50MW synchronous motors.

Engineering challenges include: electromagnetic starting performances, pole surface thermal issues, rotor topologies trade-off, structural integrity due to large centrifugal forces and thermal stresses, rigid shaft design, critical speed issues caused by long bearing span and high RPM.

Manufacturing challenges include: precise, tight tolerance machining and rotor assemblies, rotor balancing due to large rotor, rotor field coils forming and insulation.

Product design challenges include: lack of design, standard rules and guideline from marketing sales and design engineers using CATIA and ProE/CREO.

Analysis, design, builds and tests a 20MW prototype which can be scalable to 50MW using CATIA and ProE/CREO.

High Temperature Superconducting (HTS) Machine projects (Project Lead/Mechanical Technical Lead/Team Members)

Research and design the completed and partial induction motor and synchronous direct drive generator projects using cutting-edge HTS conducting material with universities and private industries funded by different government agencies used CATIA and ProE/CREO

Engineering challenges include kilowatt level thermal leakage and thermal stresses under cryogenic temperature (30 degree K), structure integrity for MN-m range torque on multi-megawatt direct drive wind turbine applications.

Commercialization challenge includes minimizing active material usage ($ cost), minimizing machine weights and size especially on wind and marine application.

Multi-megawatt level 1800rpm permanent magnet wind generators and high ratio magnetic gear (Project Lead)

Develop new product line of permanent magnet wind generators in China markets.

Research and design 1:100 ratio (input/output: 18/1800rpm) magnetic gear using CATIA and ProE/CREO.

Complex-sized, lightweight, high power dense, high efficiency 2MW plus synchronous generators offers 10% less weight in the markets.

Project development team cooperation between US and China.

Re-built Large Solid Pole Synchronous Shop Service project (Mechanical Lead)

Investigate competitors’ machines issues. Estimate repair items and quotation.

Revise engineering complete rotor and manufactured. Repair damaged control wheel systems. Replace damaged sleeve bearings.

Prepare test plan and test data for customer’s witness tests.

Toshiba International Corporation, Houston, TX 2001 – 2006

Mechanical Design Engineer/Project Leader, Motor R&D Department

Researched, developed and designed new or improved existing motor product within ISO9001 design environment. Have solid working knowledge of ME and FEA, vibration analysis, thermal analysis, rotating machinery skill and strong PRO/E and Windchill skill to complete the design of induction motors with horsepower between 1/2 to 2000.

Tools: PRO/E and Windchill

PROJECTS & RESULTS:

NEMA frame size 5810/5010 replacement project

New frame design using PRO/E and Windchill which applied most up to date motor cooling technologies to increase performance ( HP expansion and higher efficiency).

Rigid shaft rotor design which is insured first critical speed 25% above running speed to satisfy API 541 and most ASD application.

Improved bearing bracket design which to avoid bearing “be pinned” due to motor thermal expansion.

New cooling technologies including new frame design, new in-fan and out-fan and baffle configuration to achieve proper airflow and lower noise level.

Standardize parts design to reduce inventory and to avoid manufactory confusions.

5812 Tophat (WPI, WII and TEAAC) & 5012 Tophat (WPI and WPII) family

Maximum horsepower up to 2000HP on 5812 Tophat.

Variables configurations: 2P to 8P, Ball and sleeve bearing, die casting and fabricated core, WPI and WPII and TEAAC Tophat

Applicable on most of ASD application and meet API requirement.

Low noise design using PRO/E and Windchill: 2P 85dBA, 4P and lower speed: 80dBA

Cost down project – rotor duct spacer

New rotor duct spacer reduced manufactory time by 80% comparing to the old design

New rotor duct spacer eliminated die casting rotor core failure caused by the old design.

Design for high volume manufactory.

Stainless Steel motor project

Frame include : NEMA 56C, 140 and 180 TEFC and TENV, up to 5 HP

Durable and reliable design: motor works properly under 300psi water gun cleaning daily. And the life span is 5 times longer than major competitor’s stainless steel motor.

GL Automation, Dallas, TX 1997 – 2000

Mechanical Design Engineer

Designed and developed machines and tools; troubleshooted machines and components for mechanical problems; analyzed cost and efficiency of machine performance and manufacturing, especially those of special equipment requirements generic to the wafer-manufacturing field. Responsibilities included but were not limited to:

Tools: AutoCad and ProE

Researched, planned and designed mechanical and electromechanical products and systems using AutoCad and ProE

Created and detailed AutoCAD drawing for design purpose.

Coordinated activities involved in fabrication, operation, application, installation and repair of mechanical and electromechanical products and systems.

Researched and analyzed data, such as customer design proposals, specification, and manuals to determine feasibility of designs and applications.

Designed products and systems, including instruments, controls, robots, ergonomic tools, machines and mechanical systems.

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