Gas Turbine Clearance Engineering

Greenville, South Carolina
20 Oct 2016
02 Feb 2017
Oil and Gas
Contract Type
Full Time
The Clearances Engineer is responsible for designing and optimizing the gas turbine operating clearances to achieve target performance levels. Areas of focus are the compressor blade and stator tip clearances, turbine blade tip and angel wing clearances, inter-stage seals, and bearing seals. Clearance design is a system level design challenge to minimize operating clearances for maximum performance while minimizing rub durability risks.

Essential Responsibilities

Position offers excellent gas turbine system level design experience and broad knowledge of components and gas turbine operation.

Essential Responsibilities:
  • Perform Gas Turbine system level deflection analysis to determine radial and axial clearance requirements for all critical gas turbine rotating to stationary sealing interfaces and tip clearances. Specify all clearances and rotor alignment requirements for the gas turbine.
  • Establish gas turbine design requirements necessary to meet clearance performance objectives. Communicate requirements to component and system design teams.
  • Develop system models and perform ANSYS FE thermal/mechanical analysis to determine transient and steady state deflections of machine.
  • Coordinate and compile deflection predictions from component design owners to develop system level transient clearance predictions.
  • Assess clearance levels relative to historical build data, in service clearance measurements, and field rub data to correlate and validate predictions.
  • Identify opportunities to improve clearances for improved performance and improved reliability.
  • Support Digital Thread and Digital Twin activities to develop customer oriented, clearance centric business opportunities
  • Conduct variation based assessments to develop probabilistic clearance analyses.
  • Provide guidance to the manufacturing, services, and outage teams on methods and tools developments
  • Perform field validation testing to verify predictions and optimize clearance settings.


  • BS degree in Mechanical or Aerospace Engineering.
  • This role requires use of technical data subject to U.S. Government export restrictions and this posting is only for U.S. Persons (U.S. Citizens, lawful permanent residents and protected individuals (e.g., certain refugees and asylees). GE will require proof of status prior to employment

Additional Eligibility Qualifications

GE will only employ those who are legally authorized to work in the United States for this opening. Any offer of employment is conditioned upon the successful completion of a background investigation and drug screen.

Desired Characteristics

  • Six Sigma Green Belt certified (GE Employees only)
  • MS degree in Mechanical or Aerospace Engineering
  • Gas Turbine design experience in Clearances or Component design.
  • Demonstrated problem solving skills. Mindset for creating and improving processes or designs.
  • Experience with hardware design, drawing development, and statistical tolerancing.
  • ANSYS Finite Element analysis experience with 2D / 3D structural and / or heat transfer analysis.
  • Unigraphics solid modeling experience
  • Proficient with MS Office Tools
  • Excellent interpersonal skills, ability to interface with other design teams to coordinate system level clearance assessments.
  • Excellent verbal and written communication skills.