Overview
A new finite-element simulation software that can rapidly predict elastic vibration during operation of reciprocating engines (typical in automobiles). In addition to the existing PS-X, a gear-noise simulation function for electrification is planned to be added soon.
Features
Instead of conventional time-domain analysis methods based on mechanism analysis, this software employs an original calculation principle that couples the rotating crankshaft and the non-rotating engine body in the frequency domain to compute powertrain vibration. (Patent granted in August 2013: Patent No. 5352026)
For gear-noise simulation, because the number of shafts increases compared with a reciprocating engine, we devised and adopted an R-S coupling principle that extends the PS-X calculation principle to a multi-shaft system.
Analysis functions such as mode contribution analysis and input contribution analysis are also available, enabling efficient studies.
System Requirements
- Platform
- Windows 10 or later
- Input Files
- Load modal models of the engine body and the crankshaft or transaxle
- How to Use
- Transform FEM model (Nastran BDF-format) into a modal model. For reciprocating engines, create main-moving-part loads from the basic specifications of the main moving components and combustion pressure, apply them to the modal model, and calculate operational vibration.
For gear noise, apply relative displacement (T.E.) at gear mesh points and predict operating vibration.