Overcoming Rotor Dynamics Challenges in High-speed Rotating Machines

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In recent years, the development of high-speed rotating machines has surged, driven by the pursuit of efficiency, compactness, and technological advancements. These machines find applications across diverse industries, including aerospace, automotive, power generation, chemical processing, and HVAC systems.

As these machines continue to shrink in size, they demand higher rotational speeds to achieve optimal performance. This poses many technical difficulties, with the most critical one being the main focus of this webinar: lateral rotor dynamics challenges. For example, flexible rotors operating above critical speeds require precise determination of separation margins and minimization of vibration levels during acceleration. Other challenges include stability issues at high speeds, design constraints, and selecting suitable bearings and supporting systems that meet rotor dynamics restrictions.

Rotor dynamics analysis plays a crucial role in ensuring the reliability of high-speed machines. This webinar addresses the need for rapid lateral rotor dynamics analysis, especially during the preliminary design stage, as well as in-depth detailed verification analysis applied at the final stage of the rotor designing process or for confirmation of reliability for an existing design.

By attending this webinar, participants will gain a clear understanding of the specific rotor dynamics problems associated with high-speed machines. They will learn how to prepare rotor and bearing models for quick estimation of lateral rotor dynamics responses and interpret detailed analysis results to avoid potential issues. The importance of rapid rotor dynamics analyses will be discussed, focusing on their significance during the preliminary design stage of the machine. Approaches for conducting these analyses, including comparisons between beam, 2D, and 3D methods, will be outlined. Additionally, the webinar will cover the necessity of conducting complete and detailed analyses at the final stage.

Webinar Scope:

• Discussion of high-speed machine types and operational specifics.
• Review of rotor dynamics challenges present in high-speed machines.
• Strategies to address these challenges through simulation and design modifications to enhance reliability.
• Exploration of AxSTREAM RotorDynamics as a solution for rapid lateral rotor dynamics analysis

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