DyRoBeS 22: The Comprehensive Platform for Rotating Machinery Analysis

DyRoBeS 22 (Dynamics of Rotor Bearing Systems) is a professional, dedicated software suite for the analysis and design of rotating machinery. It provides specialized tools for solving complex rotor dynamics problems, enabling engineers to predict critical speeds, instability thresholds, bearing performance, and torsional vibrations in systems such as turbines, compressors, pumps, motors, and gearboxes. This analysis is essential for ensuring reliable, stable, and long-lasting operation of high-speed machinery.

Core Function: Ensuring Rotor System Stability & Reliability
The software’s primary function is to model the complete rotor-bearing-foundation system and solve the equations of motion to understand its dynamic behavior. It helps answer critical design questions: “At what speeds will the rotor become unstable?”, “What are the natural frequencies (critical speeds)?”, and “How do different bearings affect the vibration response?”

Key Analysis Modules & Capabilities:

1. Lateral Rotor Dynamics Analysis

  • Critical Speed & Mode Shape Calculation: Calculates undamped and damped critical speeds (Campbell diagram) and visualizes the corresponding rotor mode shapes (bending modes).

  • Unbalance Response: Predicts the steady-state vibration response of the rotor due to mass unbalance, which is the primary cause of synchronous vibration.

  • Stability Analysis (Root Locus): Determines the system’s stability margin and identifies modes prone to self-excited vibration, such as oil whirl/whip in journal bearings.

2. Advanced Bearing & Support Modeling

  • Journal Bearing Analysis: Includes a comprehensive library for analyzing fluid film journal bearings (plain, tilting pad, lobed). Calculates stiffness and damping coefficients, Sommerfeld number, and power loss.

  • Rolling Element Bearing Support: Models the stiffness and damping effects of ball and roller bearings.

  • Foundation & Pedestal Flexibility: Allows modeling of flexible foundations that significantly impact system dynamics.

3. Torsional Vibration Analysis

  • Natural Frequencies & Forced Response: Calculates torsional natural frequencies and predicts dynamic torques and stresses in drive trains (like motor-compressor trains) due to excitation from engines, gears, or pulsations.

  • Transient Torsional Analysis: Simulates transient events such as motor startups, synchronizations, and short circuits.

4. Specialized Features

  • Rotor Modeler: Intuitive interface for building rotor models from shafts, disks, bearings, and couplings.

  • Rotor-Bearing System Optimization: Tools to modify design parameters to shift critical speeds away from operating ranges or improve stability.

DyRoBeS 22 download
DyRoBeS 22 download