Rotordynamic & Mechanical Design Audits

Department Publications


Technical Publications

Contact Information

Klaus Brun, Ph.D.
Program Director
Machinery Program
(210) 522-5449

Centrifugal Impeller

Modal analysis of centrifugal impeller showing 3-diameter mode shape.

Design audit services help both original equipment manufacturers (OEMs) and end-users avoid severe vibrations and other damaging dynamic phenomena in machinery installations. Catching problems at the design stage, instead of in the field, avoids costly schedule delays and lost production.

Design Audit Capabilities

Southwest Research Institute (SwRI) uses both commercially available and internally developed software coupled with extensive field experience to:

  • Predict system dynamic characteristics
  • Assess the potential for problems
  • Identify modifications that will reduce the chance of problems
  • Identify operating ranges to be avoided
  • Define any areas of risk or uncertainty to be validated during startup

Design Audit Services

The design audit services cover:

Model of Centrifugal Compressor

Non-uniform pressure that develops inside centrifugal compressors adversely affects stability.

For more information about how SwRI's capabilities in rotordynamic and mechanical design audits can mitigate risk in your project, or how you can contract with SwRI, please contact Jeff Moore, Ph.D., at or (210) 522-5812.

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 9 technical divisions.