Third Longitudinal Support for Truck Frame Force Distribution
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Solution Overview
Problem
Conventional frame support structures for commercial vehicles, such as tractor units, experience unfavorable force flow and high bending stress due to the introduction of steering forces, which are not effectively managed by existing designs.
Innovation Solution
A frame support structure featuring a third longitudinal support made from hollow or profile elements, connected to steering elements and wheel suspensions, which absorbs horizontal forces and supports tank and engine devices, forming a three-dimensional structure that redistributes and absorbs forces more efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If steering forces are introduced via bracket-shaped offset parts in conventional frame support structures, then the forces can be transmitted to the longitudinal supports, but this results in unfavorable force flow and high bending stress
Solution Approach 1:
The invention introduces a third longitudinal support structure positioned between the first and second longitudinal supports, creating a three-dimensional force distribution system. This additional dimension allows steering forces to be distributed across multiple support paths rather than concentrated on single bracket connections, thereby reducing bending stress while maintaining effective force transmission.
Solution Approach 2:
The frame support structure is segmented into three separate longitudinal support structures (first, second, and third supports). This segmentation divides the force transmission task among multiple independent elements, allowing each support to carry a portion of the steering forces and reducing the bending stress on any single component.
2Strength
If a third longitudinal support structure is added to reduce bending stress and improve force distribution, then structural integrity is enhanced, but the device complexity increases
Solution Approach 1:
The third longitudinal support structure serves multiple functions simultaneously: it acts as a force transmission element for steering forces, provides additional structural reinforcement, and creates a three-dimensional support framework. This multi-functionality justifies the added complexity by delivering multiple benefits from a single structural addition.
Data Source
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AI summary
The invention relates to a frame support structure (1) for a commercial vehicle, in particular a truck, preferably a semi-trailer truck. The frame support structure (1) comprises a first longitudinal support structure (10) and a second longitudinal support structure (20), which are spaced apart from each other in the transverse direction (QR) of the frame support structure (1). The frame support structure (1) further comprises wheel suspensions (RA) for front wheels (Rv) of the commercial vehicle and, in particular, a tank system (T) for fluid storage, e.g., a fuel tank system and/or an air tank system. The frame support structure (1) also comprises a third longitudinal support structure (30).