Angular Guide Plate Structure for Stress Distribution and Weight Reduction
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Solution Overview
Problem
Existing angular guide plates in rail fastening systems are heavy and require significant material quantities, which affects their carbon footprint and production costs, while their design does not efficiently distribute static and dynamic forces, leading to potential deformation and micro-cracking.
Innovation Solution
The angular guide plate features a wedge-shaped strengthening platform, stress-relieving openings, and a stiffening rib to distribute forces effectively, reducing material usage and weight while maintaining strength and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional solid design of angular guide plate is used, then strength and durability are ensured, but weight and material consumption increase significantly
Solution Approach 1:
The guide plate is divided into multiple functional zones: a bearing part with reduced thickness, a strengthening platform with increased thickness, and a guide region with minimum thickness. This segmentation allows material to be concentrated only where structurally necessary, reducing overall weight while maintaining strength in critical areas.
Solution Approach 2:
Different regions of the guide plate have different thicknesses and material densities optimized for their specific functions. The bearing part has reduced thickness for weight reduction, the strengthening platform has increased thickness for stress distribution, and the guide region has minimal thickness. This local variation in quality ensures strength where needed while minimizing material consumption elsewhere.
2Strength
If traditional solid design of angular guide plate is used, then strength is maintained, but material and energy consumption in production increase
Solution Approach 1:
The guide plate structure is segmented into zones of varying thickness, eliminating unnecessary material from low-stress regions while concentrating material in high-stress areas. This reduces the total quantity of material required for production while maintaining the necessary strength through strategic material placement.
Solution Approach 2:
The thickness parameter of the guide plate is varied across different regions rather than maintaining a uniform thickness. The bearing part has reduced thickness, the strengthening platform has increased thickness, and the guide region has minimum thickness. This parameter variation optimizes material usage by matching material quantity to structural requirements in each zone.
3Ease of manufacture
If uniform thickness design is used, then manufacturing is simplified, but stress distribution is suboptimal leading to deformation and micro-cracking
Solution Approach 1:
The guide plate features local variations in thickness to optimize stress distribution. The bearing part has reduced thickness to minimize stress concentration, the strengthening platform has increased thickness to distribute forces effectively, and the guide region has minimum thickness. This local quality variation improves stress distribution and prevents deformation while remaining manufacturable through standard molding processes.
4Duration of action of stationary object
If sufficient material is used throughout the guide plate, then durability is ensured, but carbon footprint increases
Solution Approach 1:
The guide plate is segmented into functional zones with optimized material distribution. Material is concentrated in the strengthening platform and bearing part where it contributes to durability, while minimal material is used in the guide region. This segmentation ensures durability through strategic material placement rather than uniform material distribution, thereby reducing the overall carbon footprint.
Solution Approach 2:
The thickness parameter is changed across different regions to optimize the balance between durability and material consumption. The bearing part has reduced thickness, the strengthening platform has increased thickness for enhanced durability, and the guide region has minimum thickness. This parameter optimization ensures the guide plate maintains necessary durability while minimizing material usage and associated carbon footprint.
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
The angular guide plate for systems for fastening rails to the support, having a front part, a central part and a bearing part, a through hole in the central part, a local elevation in the front part forming a pedestal and, on the bottom side in the bearing part, a half-cylinder bulge having in the middle part a local narrowing forming a stress-relieving recess. The angular guide plate has a strengthening platform (5) running from the pedestal (6) towards the bearing part (3), and, on the upper side, the strengthening platform (5) has the shape of an isosceles trapezoid, the arms of which are the edges (14). Lines being the extensions of these edges (14) are crossing at an angle α of 40° - 70°, preferably 53° - 59°. On the underside in the front part (2) there are at least two stress-relieving openings (10a, 10b) having the form of recesses extending along a line substantially parallel to the longer edge of the guide plate (1). At the top on the edge of the bearing part (3) there is a recess forming stress-relieving arch (16). Preferably, width (L2) of this stress-relieving recess (12) and width (L1) of the stress-relieving arch (16) are 41-59% of width (L) of the longitudinal channel (15).