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How to analyse rotating machinery?

How to analyse rotating machinery?


NAFEMS wishes to commission an author to the publication “How to analyse rotating machinery?”. Rotating equipment (gears, turbines, pumps, etc.) exhibit well recognisable behavioural patterns, making that a special field of vibration analysis. The publication will help applying FEA models to identify the solution of rotor vibration problems.

Intended Readership

The intended readership consists of simulation engineers involved in the product development phase of rotating machinery. The document is expected to provide the readers with an introduction to the best practice in the analysis of rotating machinery, illustrated by reference to successful industrial examples.


The publication is expected to provide a brief theoretical introduction to particle methods for engineering simulation including (but not limited to) the following topics:

  • Introduction to rotor dynamics (critical speeds, unbalance and balancing, gyroscopic effect, bearing dynamics),
  • Basics of a single DoF rotor,
  • Introduction to the time and frequency domains,
  • Introduction to rotating machinery specific aspects of modal- and time and frequency response FEA analyses,
  • Best practices related to analysis geometry, element types, constraints, and loads,
  • Introduction to experimental techniques and signal processing,
  • Best practices in the analysis of shafts, blade and impeller systems,
  • Best practices related to the consideration of damping for rotating machinery,
  • Best practices in post-processing and presentation of analysis results.


The document should conform to the standard NAFEMS publication template (provided upon contract award). The anticipated length of the publication is between 80-100 A5 pages.


The total cost is not expected to exceed £8000 (GBP), and it is expected that the document will be completed within 12 months from NAFEMS approval.

Guidance for Proposals

Each proposal should consist of:

  • The proposed structure of the document with the titles of the sections to be developed,
  • Work plan including milestones and interim deliveries for early review,
  • Cost,
  • The authors' credentials, curriculum vitae, etc. (Proposals from single authors and consortia will be considered.),
  • The PSE competencies that the publication is anticipated to address. Review the competency area Dynamics and Vibration. Contact to obtain access.


All proposals should be sent to NAFEMS at to arrive no later than 1st of January 2025.