Systems Level Trade Studies with CAE Data Phoenix Integration Incorporated

Format:

Book

Conference/Event

Author/Creator:

Tolchinsky, Ilya, author.

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

This paper describes the method of performing systems level architecture trade studies using data from high fidelity CAE calculations. The method is applied to a SysML model of an IRS Rear Axle driveline with the aim of accurately predicting the lowest possible weight of the half shafts for a driveline configuration while considering complex requirements. First the parametric equations defined in the SysML model that estimate the impact torque are solved. Next a response surface model is created that takes the impact torque as an input and outputs the optimal weight of the half shaft axle. In order to do this, a CAE model of the half shaft axle is developed as an automated workflow. It uses a parametrized CAD model to define the geometry which is then evaluated for maximum stress and deflection with an FEA solver. The performance of all possible axle geometries is sampled using a large DOE and approximated using an RSM. An optimization workflow is then created that uses this RSM to find the optimal geometry for a specified torque load. This workflow is evaluated for a range of torque values and is in turn approximated using an RSM to create a single executable component that provides optimal half shaft axle weight as a function of applied torque. This axle performance component is connected to the SysML model together with a catalog of available CV Joints to enable the study of tradeoffs between weight and cost for the complete half shaft. The SysML model also integrates a requirement that checks if a chosen axle geometry can fit into a housing defined in CAD. Finally, the paper demonstrates optimization of the half shaft under complex constraints using the complete model

Notes:

Vendor supplied data

Publisher Number:

2021-01-0803

Access Restriction:

Restricted for use by site license