Hydrostatic Bearing Software

Capabilities

RAPPID™ hydrostatic bearing analysis software utilizes the full Navier-Stokes solution and offers the following capabilities:

• Laminar, transitional and turbulent flow
• Full thermal model
• Results include full effects of fluid inertia and shear
• Considers choked flow at either orifice or exit plane

Features

RAPPID™ hydrostatic bearing analysis software has a wide array of features are available to enable physically realistic modeling of hydrostatic bearings, including:

• Ability to solve for load given eccentricity and attitude angle or vice versa
• Thermal model includes convection to shaft and housing, and conduction through housing
• Housing thermal model allows for two dissimilar materials
• Automatic grid generation
• Solution method solves fully coupled momentum, continuity, and energy equations

Analysis Results

RAPPID™ hydrodynamic bearing analysis software yields results needed for a comprehensive assessment of bearing performance, including:

• Dynamic Results: Stiffness, damping, and mass coefficients and whirl frequency ratio
• Optional frequency dependent rotordynanmic characteristics
• >Eccentricity, attitude angle, flow rate, power loss
• Peak film pressure and peak fluid temperature
• Inlet temperature, temperature rise, maximum temperature, minimum film thickness
• Max circumferential and axial Reynolds number
• Flow condition (laminar, transitional, or turbulent)

Bearing Configurations

RAPPID™ hydrostatic bearing analysis software is available for either journal or thrust bearings.