Utility Vehicle Door Panel Segmentation for Weight Reduction
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Solution Overview
Problem
Utility vehicle doors are heavy, which affects the overall weight and efficiency of the vehicle, and existing designs do not effectively address weight reduction while maintaining structural integrity and design aesthetics.
Innovation Solution
The design incorporates an inner and outer door panel configuration where the outer panel is attached to the upper portion of the inner panel, exposing the lower portion, using a lighter material and differing colors for dual-color decoration, and a door frame that enhances rigidity with a speaker bracket for improved structural support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a traditional door design is used, then structural integrity is maintained, but the door weight increases
Solution Approach 1:
The door is divided into multiple panels (inner door panel and outer door panel) that can be separately configured. The outer door panel is attached only to the upper portion of the inner door panel, creating a segmented structure that reduces overall weight while maintaining structural integrity through strategic placement of structural elements.
Solution Approach 2:
The outer door panel is selectively attached to the upper portion of the inner door panel rather than covering the entire surface. This local attachment approach reduces weight by removing unnecessary material from the lower portion while maintaining structural strength where it is most needed for door operation and safety.
2Weight of moving object
If the outer door panel covers the entire inner door panel, then design aesthetics are improved, but weight increases
Solution Approach 1:
The door design features an asymmetric configuration where the outer door panel is attached only to the upper portion of the inner door panel, leaving the lower portion exposed. This asymmetric arrangement creates a distinctive dual-color design aesthetic while reducing weight by eliminating material from the lower portion.
Solution Approach 2:
The design utilizes color differentiation between the outer door panel and the exposed lower portion of the inner door panel to create an attractive dual-color scheme. This approach maintains design aesthetics through color variation rather than complete material coverage, thereby reducing weight.
3Weight of moving object
If lighter materials are used for the door panels, then weight is reduced, but manufacturing complexity increases
Solution Approach 1:
The door is segmented into separate inner and outer panels that can be manufactured independently using lighter materials. This segmentation allows each panel to be optimized for weight reduction while maintaining ease of manufacture through modular construction and separate assembly processes.
Data Source
AI summary
A utility vehicle includes a door. The door includes an inner door panel disposed close to a cabin, and an outer door panel attached to an outer end of the inner door panel. The outer door panel is attached to an outer end of an upper portion of the inner door panel to expose a lower portion of the inner door panel when viewed from outside the vehicle.