• Home
  • Services
    • Image Analysis
    • Fluid Mechanics
    • Test Facilities
    • Test Rig Design and Manufacture
    • Engineering Design and Simulation
    • Control Systems & Instrumentation
  • Renewables
  • Products
    • Seeding Generators
    • Spray Cone Angle Measurement System
    • LDA Alignment Tool
  • About
    • About Us
    • Meet the Team
    • Careers
  • News
  • Contact
Skip to content

  • News
  • Contact
  • Home
  • Services
    • automated photometric stereo rig.png
      Image Analysis
    • spray characterisation
      Fluid Mechanics
    • SCITEK Gas Turbine Engine Facility
      Test Facilities
    • Airjet Exciter Rig
      Test Rig Design and Manufacture
    • Clutch Design
      Engineering Design and Simulation
    • electrical panel
      Control Systems & Instrumentation
  • Renewables
  • Products
    • SCITEK LS10 Thin Oil Seeder
      Seeding Generators
    • Spray Image
      Spray Cone Angle Measurement System
    • LDA Alignment Tool
      LDA Alignment Tool
  • About
    • About Us
    • Expert Engineers
      Meet the Team
    • Careers

Rotor Dynamics

Home > Services > Engineering Design and Simulation > Rotor Dynamics

  • SCITEK Honeywell Engines
  • Rotordynamic Response Plot Example
    Rotordynamic Response Plot Example
  • Direct Orbit Plot Example
    Direct Orbit Plot Example
  • Frequency Spectrum Example
    Frequency Spectrum Example
  • Rotordynamic Deflected Shape Example
    Rotordynamic Deflected Shape Example
  • SCITEK Honeywell Engines
  • Rotordynamic Response Plot Example
  • Direct Orbit Plot Example
  • Frequency Spectrum Example
  • Rotordynamic Deflected Shape Example

For safe operation of rotating test equipment

Background

All rotating machinery produces vibrations and the amplitudes of these vibrations vary significantly with rotational speed. As the rotor speed increases and approaches its natural frequencies the amplitudes increase and the rotor starts to resonate, causing very high system vibrations, at the point where the rotor speed aligns with the natural frequency of the rotor (critical speed) the vibrations can cause excessive wear of the bearings or catastrophic rotor failure causing human injury or loss of lives. Rotor unbalance and its supporting structures can also excite the amplitudes and need to be considered during design.

What we do

Analysis and Design

SCITEK carry out rotordynamics to analyse the rotor vibrations and bearing dynamics to understand how best to avoid these critical speeds, or if they are unavoidable due to system constraints, SCITEK can design squeeze film dampers (SFD), springbars or amplitude limiters to reduce the amplitudes enough to allow the rig to pass through them safely when increasing or decreasing speeds.

There are several aspects SCITEK consider when designing rotating rigs to ensure longevity, efficiency and reliability, these include:

  • Rotor and support stiffnesses
  • Rotor mass, geometry and natural frequencies
  • Bearing and support configuration and locations
  • Rotor mass unbalance
  • System damping
  • Flexible couplings
  • Materials

Rotordynamic Analysis Outputs

  • Undamped critical speed maps
  • Unbalance response and shaft orbit plots
  • Bearing loads
  • Deflected shapes
  • Damped natural frequency analysis
  • Torsional responses

Our Rotordynamics Capability

Monitoring and maintaining rotating rigs is also a key area of SCITEK’s capability. SCITEK can measure vibration FFT (Fast Fourier Transform) spectrums to analyse vibration amplitudes to help determine the source and cause of high vibrations. Monitoring bearing vibration FFT spectrums against bearing fault frequencies allows us to detect signs of wear, and with trends, predict how long before the vibrations become critical. This allows servicing and overhauling to be scheduled to minimise rig downtime.

Get in touch

Have a rotor dynamics problem you would like us to solve? Contact us now to find out how we can help.

Contact us
  • Services
  • Renewables
  • Products
  • Case Studies
  • About
  • Careers
  • News
  • Contact
  • Our Accreditations
  • Terms & Conditions
  • Privacy Policy

Tel: +44 (0)1332 365652  |  Email: enquiries@scitekconsultants.co.uk

Scitek Consultants Ltd, 152 Victory Road, Derby, DE24 8EN

Copyright © SCITEK Consultants Ltd 2022 | Site by Damselfly Creative