NASA NTRS · 19860000531
Advanced Rotordynamic Nonlinear Transient Simulation
Abstract
Advanced rotordynamic nonlinear transient-simulation program, TRANSIM, developed to predict response of high-performance rotating machinery to variety of forcing functions. Works by modal superposition of rotor and casing subsystems. Transient response of system calculated by numerical integration of equations of motion, performed in modal coordinates. Resulting data transformed back into physical coordinates as required to determine user-requested loads and accelerations as function of time. Used to analyze Space Shuttle main engine high-pressure fuel turbopump. TRANSIM written in FORTRAN 77.
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Becht, D. G.. 1986-11-01. Advanced Rotordynamic Nonlinear Transient Simulation. https://ntrs.nasa.gov/citations/19860000531
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