Top 10 analyses to run with Simcenter Amesim engine models and how to choose the most suitable one
Thanks to its long history and expertise in the engine modeling area, Simcenter Amesim allows to model an internal combustion engine in many different ways, depending on the goals …
We are used to talk about the scalability of Simcenter Amesim, but it goes way beyond this single word and we could say that the only purpose of this capability is to satisfy user’s needs.
Indeed, there are so many needs when it comes to engine modeling, and so many ways to model an engine in Simcenter Amesim, that without guidance, the user could choose an inappropriate submodel with the associated unwanted effects.
Here is a non-exhaustive list of the numerous ways a 4-cylinders engine model can be modeled, which user’s needs it satisfies and some hints about which one to choose based on several relative criterion.
Top 10 analyses to run with Simcenter Amesim engine models and how to choose the most suitable one
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#1 - Assessing the thermal behavior of an engine cooling and/or lubrication circuit
The engine is a heat source and can be modeled using the following libraries and components:
- The Signal, Thermal and thermal hydraulic libraries components
Simple Simcenter Amesim engine model for heat release
- Or the Cooling system library component
Simple Simcenter Amesim engine model for heat release and cooling system design
release Simcenter Amesim map
- Or the IFP-Drive library components
IFP-Drive engine model for heat release
IFP-Drive engine model configuration for heat release computation
- Or the IFP-Engine library components (mean value engine model or high frequency engine model)
Detailed engine model for heat release in Simcenter Amesim
Capabilities summary
#2 - Assessing the fluid flow behavior of an engine cooling and/or lubrication circuit
The engine is a fluid volume with restrictions and can be modeled using the following libraries and components:
- The Signal, Thermal & Thermal Hydraulic libraries components
Engine fluid flow Simcenter Amesim model
- Or the Cooling System library components
Engine fluid flow simple Simcenter Amesim model
- Or the CAD import tool combined with Thermal and Thermal Hydraulic libraries components
Capabilities summary
#3 - Driving a pump, an alternator, a shaft or a power take-off
The engine is a torque/rotational speed source and can be modeled using the following libraries and components:
- The Signal and Mechanical libraries components
Simcenter Amesim torque or speed generation model
- Or the IFP-Drive library components
- Or the Powertrain library components
Simcenter Amesim simple engine torque model
- Or the IFP-Engine library components using a mean value engine model (MVEM)
LMS Amesim mean value engine model
Capabilities summary
#4 - Assessing the fuel consumption of the vehicle over a driving cycle
The engine consumes fuel to drive the vehicle and can be modeled using the following libraries and components
- The IFP-Drive library components
- Or the IFP-Engine library components using a Mean Value Engine Model (MVEM)
Simcenter Amesim Mean Value Engine model
- Or the IFP-Engine library components using a high frequency engine model
Detailed engine model for fuel consumption simulation in Simcenter Amesim
Capabilities summary
#5 - Validating the Engine Control System
The engine, its actuators and sensors are compatible with real-time control units and can be modeled using:
- IFP-Engine library components with MVEM
MVEM engine model for control system design and V&V
- Or with high frequency engine model
Engine model for control system design and V&V
Capabilities summary
#6 - Assessing the crankshaft torsional vibrations induced by the combustion
The engine is a harmonics generator and can be modeled using the following libraries and components:
- The Powertrain library components
Simcenter Amesim engine model for NVH analysis
- Or the IFP-Engine library components
Simcenter Amesim detailed engine model for NVH analysis
Capabilities summary
#7 - Assessing the ride comfort and vehicle drivability
The engine is a 3D dynamic mass with 6 degrees of freedom and can be modeled using:
- The Powertrain library components
Simcenter Amesim engine model for ride comfort and drivability analysis
#8 - Assessing the engine bearings lubrication
The engine is a reciprocating force source and can be modeled using the following libraries and components:
- The Planar Mechanical library components
Engine model for bearings lubrication design
- Or the Powertrain library components
Simcenter Amesim engine model for bearings design
Capabilities summary
#9 - Assessing the exhaust after-treatment system efficiency
The engine is an exhaust gases generator and can be modeled using the following libraries and components:
- The Signal library components
Simple engine exhaust gases Simcenter Amesim model
- Or the IFP-Drive library components
Simcenter Amesim engine model for exhaust gases analysis
- Or the IFP-Engine library components using MVEM
Simcenter Amesim MVEM engine model for exhaust gases generation
- Or the high frequency engine model
Simcenter Amesim IFP-Engine model for pollutants analysis
Capabilities summary
#10 - Assessing the engine air intake, exhaust and fuel systems performances
The engine converts air and fuel into exhaust gases, torque and heat and can be modeled using the following libraries and components:
- The IFP-Engine library components with MVEM
Simcenter Amesim MVEM engine model for air and fuel loops design
- Or the CFD 1D and IFP-Engine libraries components
Simcenter Amesim detailed engine model for air and fuel loops design
Capabilities summary
Bonus (coming in rev 16) – Assessing the vehicle underhood thermal behavior
The engine is a radiative and convective heat source and will be modeled using the HEAT library components:
Simcenter Amesim engine model for underhood thermal analysis
Simcenter Amesim HEAT underhood cooling stack analysis
This article is repubblished from the Simcenter Blog, https://community.sw.siemens.com/s/article/top-10-analyses-to-run-with-simcenter-amesim-engine-models-and-how-to-choose-the-most-suitable-one, by tim.mila
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Simcenter Amesim is a powerful simulation and engineering design tool, developed by Siemens Software Industry and distributed by BSim Engineering.Use Simcenter Amesim to study the design of a component and its control, identify the ideal layout of a subsystem or check the integrated performance of several machine systems.
