Windshield Crossbar Duct Layout for Unobstructed Air Intake
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Solution Overview
Problem
The design of motor vehicle bodyworks is constrained by the need to maintain an air intake for air conditioning equipment, limiting the freedom of design of elements like the windshield crossbar.
Innovation Solution
A crossbar design with a duct integrated into the bodywork frame that allows air intake for air conditioning without obstructing the airflow, enabling a more flexible and compact bodywork structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the crossbar is designed with a larger projection in the forward direction to provide better windshield support, then the structural strength is improved, but the air intake for air conditioning equipment is obstructed
Solution Approach 1:
The crossbar is divided into multiple segments: a first portion that projects forward to provide structural support, and a second portion that is positioned lower to avoid obstructing the air intake. This segmentation allows each portion to fulfill its specific function without compromising the other.
Solution Approach 2:
The crossbar transitions from a single horizontal element to a three-dimensional structure with varying heights along its length. The first portion extends further in the forward direction while the second portion is positioned lower, creating a multi-level configuration that resolves the conflict between structural support and air intake clearance.
2Strength
If the crossbar is designed with a longer projection in the forward direction, then the windshield support is improved, but the design freedom of the bodywork is reduced
Solution Approach 1:
The crossbar is divided into a first portion for structural support and a second portion for aerodynamic clearance, allowing independent optimization of each segment's function and enabling greater bodywork design flexibility.
Solution Approach 2:
The crossbar employs a dynamic, non-uniform configuration where the height varies along its length rather than maintaining a constant profile. This dynamic design allows the structure to adapt to both structural and aerodynamic requirements simultaneously.
3Adaptability or versatility
If the crossbar is made more compact in the forward direction to improve design freedom, then the bodywork flexibility is improved, but the windshield support strength is reduced
Solution Approach 1:
The crossbar is segmented into a first portion that provides the necessary forward projection for windshield support and a second portion that is positioned lower to maintain design freedom, ensuring both structural and design requirements are met.
Solution Approach 2:
Different portions of the crossbar have different heights and functions: the first portion has greater forward projection for structural support, while the second portion is positioned lower for design flexibility. This local differentiation allows optimal performance in each region.
Data Source
AI summary
A bodywork for a motor vehicle includes a frame to fix and surround a windshield of the motor vehicle. The frame comprises a crossbar to constitute a support base for the windshield, and a pair of uprights respectively fixed at opposite ends of the crossbar so as to form an area with a closed contour for placing the windshield. The crossbar comprises a first wall facing away from the opposite side to the area. A duct extends through the crossbar between a first opening obtained on a second wall of the crossbar and a second opening obtained on the first wall.