Overview
This program predicts the rigid-body excitation forces generated by an automotive engine during operation.
It predicts, for each engine order component, the translational forces and moments generated by the mechanism motion of the principal moving parts and combustion pressure, as well as fluctuations in crankshaft output torque.
Features
By inputting the powertrain’s inertia properties and engine-mount characteristics, it can be simultaneously predict the rigid-body vibration of the powertrain caused by the excitation forces described above.
Combustion pressure used for excitation-force calculation can be input from external data such as measurements, or calculated using the program’s optional functions.
From inputting specifications to analyzing results, all operations are completed within Excel, making it easy to use for design studies even for those who are not dedicated CAE specialists.
Typical Applications
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Study key specifications of main engine moving parts and cylinder layout.
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Study balance-shaft specifications and layout.
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Study engine-mount layout.
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Crankpin load calculation.
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NV analysis such as booming noise and idle vibration in combination with vehicle mechanism models and FE models.
System Requirements
- Platform
- Windows 10 or later
- Software Environment
- Microsoft Excel
- Input Files
- Load modal models of the engine body and the crankshaft or transaxle
- How to Use
- Calculate rigid-body excitation forces acting on the powertrain from key specifications of the engine’s main moving parts and combustion pressure.
Using the same excitation forces, calculate rigid-body vibration of the powertrain supported by engine mounts.