Automotive

pageIcon-AutoWith new models of cars and SUVs doled out by manufacturers every day, engineering lead times have been reduced significantly. The budget slice for physical testing has been drastically reduced, and in some cases physical testing is just not an option. Lead times for automotive majors have been reduced from 50+ months in the 1990s to 15 months with the adoption of CAE. Physical testing which used to involve large investments and 4-6 months has been replaced by CAE simulation which can accomplish the same task in 1-2 months with much smaller investments. The NISA product line has been helping the automotive industry for the last two decades in analyzing many complex problems.

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Design analysis of heavy duty truck cab

Objective:

A Canadian logging truck manufacturer needed the cabins of its trucks designed for crushing loads from falling trees and impact from logs being carried on the trailer. The truck cabins needed to pass a beam penetration test.

Methodology:

All cabs are required to pass several different operating loads as specified by the manufacturer and governmental regulations.

Crush analysis was conducted, which simulates forward moving logs penetrating the cab from the rear panel if a fully loaded truck were to stop suddenly. In addition, depending upon the application of truck, the cab is required to withstand localized loads such as roof crush, snow load and beam penetration due to either falling trees or light/sign poles. The model consisted of shell elements for the cab. The panels were connected using rigid links for spot-weld simulation. The frame and suspension were included using beam elements.

The truck cabins were suitably reinforced and the manufacturer passed government regulations.

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