Front Frame Suspension Housing Alignment for Assembly
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Solution Overview
Problem
The existing front vehicle-body structure's suspension housing assembly is complicated due to the need for vertical movement, which hinders easy assembly and affects the bending rigidity in the vehicle width direction.
Innovation Solution
The design includes a front frame with outward and inward flange portions and a suspension housing with aligned outward and inward joint portions, allowing horizontal assembly and enhancing bending rigidity by positioning the flange portion inwardly, thus eliminating the need for vertical movement during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the inward-side joint portion extends downward beyond the upper face of the front frame, then the bending rigidity of the vehicle width direction is improved, but the assembling process becomes complicated requiring vertical movement
Solution Approach 1:
The joint portions are repositioned from a vertical arrangement (one above the other) to a horizontal arrangement (side by side along the vehicle width direction). This dimensional change allows both rigidity and ease of assembly to be achieved simultaneously.
2Strength
If the suspension housing is moved inward in the vehicle width direction to position the inward-side joint portion above the front frame, then the bending rigidity is improved, but the assembling process becomes complex
Solution Approach 1:
The joint portions are arranged horizontally along the vehicle width direction rather than vertically, eliminating the need for complex vertical positioning movements during assembly while maintaining the structural rigidity benefits.
Data Source
AI summary
A front vehicle-body structure of a vehicle comprises a front frame, an apron reinforcement, and a suspension housing, wherein the front frame includes a frame outer and a frame inner, the frame outer and the frame inner having respective upward projection portions which are joined together to form a flange portion of the front frame, the suspension housing includes an outward-side joint portion which is joined to an outer face of the front frame and an inward-side joint portion which is joined to an outward side face, in the vehicle width direction, of the flange portion, the outward-side joint portion and the inward-side joint portion being aligned in the longitudinal direction.