What are Flexible Rotors?

Flexible rotors are rotating parts that change shape (deform) when rotational speeds approach or exceed their natural resonant frequencies. Unlike rigid rotors, this causes the mass distribution to change with speed. Therefore, balancing at low speeds may be insufficient to eliminate the vibrations the rotor will experience at high operating speeds. Therefore, balancing flexible rotors is generally performed at speeds close to or above their operating speeds. This process is critical for accurately simulating the dynamic behavior of the part under operational conditions.

This dynamic nature of flexible rotors makes the balancing process more complex and often requires the application of multi-plane balancing techniques. These types of rotors are widely used in fields such as the energy sector (wind turbines), aerospace, and high-speed machinery. At MBS Balans Sanayi, we offer machines specifically designed for these demanding applications, with in-situ balancing and high-speed testing capabilities. On-site balancing eliminates potential errors resulting from assembly and disassembly by balancing the rotor on its own bearings and in its own operating environment, ensuring the most accurate results.