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Commercial Vehicles: Thermal Protection

Safe, Reliable Thermal Management


Interpolated temperatures for engine components and the exhaust system

Many components in a commercial vehicle can become so hot that they can potentially fail, or degrade nearby components leading to serious safety, durability, and warranty issues. Plastic components are used increasingly to save on cost and weight, but are more sensitive to temperature. Globalization is leading to vehicles or vehicle platforms that must operate in extremely wide temperature ranges. Careful and detailed analysis of component placement and thermal shielding is required to avoid costly late-stage design fixes or, worse, failures when in production.


Some of the components which design can be improved using thermal protection simulation methodology

SIMULIA SOLUTION

SIMULIA's solutions are uniquely suited to address vehicle thermal protection issues. SIMULIA PowerFLOW's unique, inherently transient Lattice Boltzmann-based physics enables it to perform simulations that accurately predict real-world transient conditions on the most complex geometry. SIMULIA PowerTHERM is a fully coupled, highly accurate, conduction and radiation solver. The combination of PowerFLOW and PowerTHERM enables you to accurately predict temperatures and visualize the flow and temperature fields for the entire vehicle. This enables you to identify problem areas and provide recommendations to improve the design and eliminate problems. Rapid turnaround time for simulation and model setup enables you to quickly make design changes to the baseline and evaluate the improvements in thermal performance.

Measurements in thermal wind tunnels can evaluate vehicle thermal performance and locate potential hot spots. The SIMULIA simulation solution can be used to not only predict the location of these hot spots, but explain the physical causes behind them. These insights in turn provide much quicker design and better thermal solutions. Typically, using the SIMULIA thermal protection solution significantly reduces the number of thermal failures observed in the first prototypes (or completely eliminates them), at a significantly lower design cost.

Using the SIMULIA solution for thermal protection, you can:

Exa's solutions are uniquely suited to address the thermal protection issues of commercial vehicles. Through the coupled use of PowerFLOW's unique, inherently transient Lattice Boltzmann-based physics and PowerTHERM's highly accurate, conduction and radiation solver. Exa enables you to accurately predict temperatures and visualize the flow and temperature fields for the entire vehicle. This enables you to identify problem areas and provide recommendations to improve the design and eliminate problems. Rapid turnaround time for simulation and model setup enables you to quickly make design changes to the baseline and evaluate the improvements in thermal performance.

Measurements in thermal wind tunnels can evaluate a commercial vehicle's thermal performance and locate potential hot spots. The Exa simulation solution can be used to not only predict the location of these hot spots, but explain the physical causes behind them. These insights in turn provide much quicker design and better thermal solutions. Typically, using the Exa thermal solution significantly reduces the number of thermal failures observed in the first prototypes (or completely eliminates them), at a significantly lower design cost.

Using the Exa solution for thermal protection, you can:

  • Identify hot spots.
  • Improve component lifetime and reliability.
  • Optimally place, or eliminate, heat shields.
  • Optimize component layout.
  • Reduce development costs by eliminating prototype testing.

SIMULIA SOFTWARE USED FOR THIS APPLICATION

Simulation Preparation: 
Simulation: 
Results Analysis: 

TECHNICAL REFERENCES