Product development via 1D models

Merkle & Partner: Simplification in virtual development


Simulation calculations have long since arrived in the development departments of industry, as they perfectly complement time- and resource-consuming testing. Here, 1D models in particular play an important role. For the investigation and optimization of complex systems, individual values can be obtained quickly and economically - especially for well thought-out thermal management.

1D models are commonly used above all for testing entire vehicle cycles such as the WLTP (World hamonized Light-duty vehicles Test Procedure). 1D models capture physical relationships in a simplified way. Where no 3D distribution has to be used for evaluation, but individual values are sufficient, 1D models can be used optimally.

In thermal management, Merkle & Partner uses 1D simulation for different scenarios. For example, if the placement of a product's electronics is changed due to the design, entire cooling concepts can be validated on the basis of defined limit temperatures. In the field of electromobility, vehicles can be developed more quickly if 1D simulations can be used to reproduce the change in position of the battery, including all performance parameters.

A 1D test model is always useful when series need to be developed further, products need to be diversified, operating conditions or environmental parameters need to be changed. In such cases, a 1D model provides a realistic image that allows direct assessment of the effects. The savings compared to real testing and even to 3D models can be measured in days and weeks of design time. With valid results.

"Virtual product development will continue its triumph with the help of 1D simulation. Based on this technology, we can get concrete answers even faster. The decisive factor is the underlying calibration via tests or 3D simulation, for the correct design of the 1D model," says Dipl.-Ing. (TU) Stefan Merkle, Managing Director of Merkle & Partner GbR, and adds: "The possibilities for 1D calculations are almost unlimited. In addition to the automotive sector, 1D testing has become a popular development tool in large parts of industry. From industrial equipment development to kitchen appliances."