Vehicle Axle Beam Reinforced Support Points Weight Reduction
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Solution Overview
Problem
Existing axle beam arrangements in vehicles are heavy due to the need for significant material to absorb force peaks without plastic deformation, leading to increased weight and stress on components like cross beams and force introduction points.
Innovation Solution
The axle beam arrangement incorporates reinforced support points with stop and reinforcing elements, either rigid or elastic, to prevent plastic deformation in high-stress regions, allowing for reduced wall thickness and weight while effectively absorbing forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cross beam wall thickness is increased to absorb force peaks without plastic deformation, then the strength and reliability of the axle beam arrangement is improved, but the weight of the axle beam arrangement increases
Solution Approach 1:
The patent applies local quality by providing reinforced support points with increased wall thickness only at specific locations where force peaks occur (such as at bearing locations and force introduction points), while maintaining reduced wall thickness in other areas. This localized reinforcement allows the beam to withstand peak forces without requiring the entire structure to be overly heavy.
Solution Approach 2:
The axle beam arrangement is segmented into different regions with different wall thickness characteristics. The cross beam and longitudinal beams are designed with varying wall thicknesses - thicker at critical support points and thinner in non-critical areas. This segmentation allows optimization between strength where needed and weight reduction where not required.
2Strength
If the wall thickness of the cross beam is increased to support forces in the transverse direction, then the strength is improved, but the weight increases
Solution Approach 1:
The cross beam features localized reinforcement at specific support points where transverse forces are applied, such as at bearing locations and force introduction points. These reinforced areas have increased wall thickness to handle peak forces, while the remaining portions of the cross beam maintain thinner walls to reduce overall weight.
Solution Approach 2:
The patent employs composite construction by combining different material properties within the same component. The axle beam arrangement uses a base material (such as steel) with localized reinforcements that may have different material characteristics or structural configurations to optimize both strength and weight properties.
3Strength
If the wall thickness of the longitudinal beam brackets is increased to bridge gap distances under peak load, then the strength is improved, but the weight increases
Solution Approach 1:
The longitudinal beam brackets feature localized reinforcement at the force introduction points where peak loads are applied. These specific areas have increased wall thickness or reinforced structures to bridge the gap distances under peak load conditions, while the rest of the longitudinal beams maintain thinner walls to minimize weight.
Data Source
AI summary
An axle beam arrangement on a vehicle, in particular a motor vehicle, has two longitudinal beams and at least one cross beam connecting the two longitudinal beams. At least one of the beams has in an installation state of the vehicle a clearance between the beam stop region and a vehicle-side stop structure, in particular a body structure. The beam has in the beam stop region at least one stop and reinforcing element which reinforces the beam stop region and which is constructed and arranged so that it comes into supporting contact with the stop structure when the beam moves toward the stop structure.