TVA - New package for simulation in frequency domain

The calculations of torsional vibrations on propulsion or generator systems are very specific. Excitation leads to unavoidable resonance on some equipment. It is therefore necessary to avoid them or – if this is not necessary – to make sure that vibratory amplitudes due to forced response calculation comply with legal requirements limits.

 

The package Torsional Vibration Analysis (TVA) available with the SimulationX version 3.4 offers an efficient and wide model library for steady-state and fast simulation of drive systems with combustion engines, electrical machines, gears and typical loads. The package contains linear and non-linear models tailored to the extensive steady-state simulation capabilities in SimulationX and the special requirements in the evaluation and certification of drive systems. The modeling adapted to frequency domain calculations ensures a numerical robust calculation even of complex models. Hence the TVA package enables a quick and problem-oriented model set-up. Efficient and fast solver technologies for steady-state simulation of even non-linear systems and extensive result documentation functions support the computation engineer’s day-to-day work and provide him with new opportunities in steady-state driveline calculations.

 

The open structure of the TVA package allows easy modification and enhancement by the user. Due to compatible connections the elements of the TVA library are combinable with all libraries of the rotatory mechanics and power transmission that also benefits from the new opportunities of the steady-state simulation in SimulationX. All models of the TVA package can be parameterized in a user-friendly manner by values available from pro­duct data sheets or usual mechanical values. Alternatively, several estimation ap­proa­ches are implemented in the models, which can help the user to find adequate parameters.

 

Read more about the use of the SimulationX TVA library using the example of Bureau Veritas.