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$50 USD / hour
Flag of UNITED STATES
san diego, united states
$50 USD / hour
It's currently 9:04 AM here
Joined July 14, 2016
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Andrew S.

@apbsommer

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$50 USD / hour
Flag of UNITED STATES
san diego, united states
$50 USD / hour
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Senior Mechanical Engineer

• 8 years of global experience with the ability to handle multiple opportunities directly or indirectly related to product design and technical trouble shooting. • Proven success implementing quality process improvement initiatives and building strong relations with corporate scientists, manufacturing staff, and customers. • A persuasive communicator with the ability to synthesize and deliver complex scientific information to all involved stakeholders.

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Portfolio

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Experience

Senior Mechanical Design Engineer

Solar Turbines
Apr 2016 - Present
Lead team to refine technical mechanical part and assembly drawings to capture design intent and document key aspects necessary to accomplish manufacturing goals as well as create complex mechanical components including sourcing, dynamic models, key performance parameters, etc., with specific focus on Rotor and Gear Systems.

Mechanical Design Engineer

Solar Turbines
Apr 2012 - Mar 2016 (3 years, 11 months)
Developed products by studying customer requirements, testing protocols, manufacturing and assembly methods and materials as well as soliciting observations from operators. Confirmed system and product capabilities by designing feasibility and testing methods; testing properties with a specific focus on Gas Turbine Systems.

Associate Mechanical Engineer

Solar Turbines
Jul 2010 - Mar 2012 (1 year, 8 months)
Assisted team in design, development, fabrication, modification, installation, and testing of mechanical parts, components, and equipment revolving around Centrifugal Compressor Products.

Education

MS, Mechanical Engineering, 3.90

California Polytechnic State University-San Luis Obispo, United States 2009 - 2011
(2 years)

BS, Mechanical Engineering

California Polytechnic State University-San Luis Obispo, United States 2005 - 2009
(4 years)

Publications

Gear Defect Modeling of a Multiple-Stage Gear Train

Journal of Modelling and Simulation in Engineering
This study demonstrates the transient and steady state dynamic loading on teeth within a two-stage gear transmission arising from backlash and geometric manufacturing errors by utilizing a nonlinear multibody dynamics software model. Backlash between gear teeth which is essential to provide better lubrication on tooth surfaces and to eliminate interference is included as a defect and a necessary part of transmission design.

Spectrum Diagnostics of a Damaged Differential Planetary Gear During Various Operating Conditions

Journal of Physical Science International, 2016
Planetary gears are identified as compact alternatives to fixed-axis gear trains and show more complicated dynamical behavior due to the nonlinearity induced by the interaction between backlash and tooth defects. The majority of current publications are based on theoretical models of ideal planetary gears, and therefore cannot simulate the time varying dynamic forces induced by damaged teeth.

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