Projects : Finite Element Modeling and Analysis

Dynamic Power Technologies engineers have performed finite element analyses for both Navy and commercial customers for the last 15 years for a wide variety of components from nozzle blocks to combustors to blades to reactor vessel heads.

Gas Turbine:

W251 Cantilevered-Design Exhaust Manifold Analyses

DPT engineers provided thermal with deadweight, vibration, and creep analyses to determine whether the manifold could be supported as a cantilevered structure to eliminate the spring hanger system, and to determine if the stiffening ribs were necessary.

The analyses showed that the cantilever design was feasible and the spring hanger system was not necessary, and that the disadvantages of support rib outweighed the advantages. Design changes recommended reduced production cost by several thousand dollars.

LM2500 Turbine Blades Stress and Fracture
Mechanics Analysis

Analyses were conducted to assess observed craze cracking that had propagated into the base metal, determine mechanical and fracture mechanic material properties, and perform stress analyses to consider thermal, pressure, and centrifugal loadings. The high-stress analyses matched the actual craze cracking areas and determined that the thermal gradient loading produced the dominant stress. The stress and fracture mechanics analyses showed that the cracks would initiate and propagate.

Projects:

Studies and Development

Site-Civil Development

Structural Engineering

Mechanical Engineering

Electrical Engineering

OEM Analytical Support