Browse Publications Technical Papers 2005-01-1699

Development of Topology Optimization Method for Reduction of Transmission Housing Weight 2005-01-1699

The housing accounts for a large portion of the overall weight of automotive transmissions, making it a part with a high need for weight reduction.
In addition, while the application of topology optimization for the purpose of reducing weight and increasing rigidity is nearing a practical level, there are no reports yet of methods for effectively applying topology optimization to complex shapes such as transmission housings.
Therefore, this study developed a topology optimization method as a tool for use in the design of lightweight and high-rigidity automotive transmission housings.
The modeling method uses a double-layered structural mesh so that topology optimization calculations can be performed for transmission housings with a hermetic structure.
This method realized a reduction in weight while still meeting the target rigidity values for transmission housings.
Shapes predicted by optimization were studied from the viewpoint of the stress generation conditions, and it was confirmed that the ribs placed as stiffeners along the bearing load transmission routes were efficiently designed.
It was also confirmed that it is important to apply the appropriate optimization method depending on the maturity of the design in order to increase the weight reduction effects when designing actual transmission housings.
Finally, the weight reduction effects were also found to be greatest when topology optimization calculations were performed from the housing framework concept stage.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

CAE Virtual Test of Air Intake Manifolds Using Coupled Vibration and Pressure Pulsation Loads


View Details


The Numerical Simulation a Bridge Between Micro and Macro: Combining advanced rolling bearing technology with structural dynamics & rotating machinery dynamics.


View Details


Gear Whine Noise Reduction by Transmission Error and Contact Pattern Optimization: Simulation and Testing Correlation


View Details