Wing Strength Test Rack With Pulley Loading Without Disassembly
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Solution Overview
Problem
Existing test racks for unmanned aerial vehicle wings are expensive, unsuitable for low-cost small and large fixed wing aircraft, and require disassembly for changing test conditions, posing safety and efficiency challenges.
Innovation Solution
A wing static load strength test rack with fixed pulley systems, weights, and fixtures that allow for easy loading and simulation of various load conditions without disassembly, using a gantry structure and Kevlar ropes for safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing test racks use hydraulic jacks and sensors to apply force, then force measurement is accurate, but the equipment becomes expensive and complex
Solution Approach 1:
The patent replaces the complex hydraulic jack and sensor system with a simple weight-based mechanical loading system. Weights are directly hung from the wing structure through fixtures, eliminating the need for hydraulic mechanisms and force sensors while providing accurate known load values through the weight mass itself.
Solution Approach 2:
The patent uses simple, inexpensive fixtures and weight components that can be easily replaced or adjusted. The fixtures are basic mechanical clamps that attach to the wing, and weights are standard mass objects, both of which are much cheaper than hydraulic systems and sensors.
2Manufacturing precision
If existing test racks are designed for specific test conditions, then test accuracy is improved, but the equipment requires disassembly when test conditions change
Solution Approach 1:
The patent designs a universal test rack structure with multiple adjustable fixtures that can accommodate different test conditions. The fixtures can be positioned at various locations on the wing and adjusted to apply loads in different configurations, allowing the same equipment to perform multiple test types without disassembly.
Solution Approach 2:
The patent employs adjustable and reconfigurable fixtures that can dynamically adapt to different test requirements. The fixtures can be moved, repositioned, and reconfigured on the wing structure, allowing the test setup to change while the main rack structure remains in place.
3Stability of the object's composition
If traditional test racks occupy large space, then structural stability is improved, but space efficiency deteriorates
Solution Approach 1:
The patent utilizes vertical space by suspending weights from above the wing structure rather than applying loads from the side or bottom. This vertical loading approach allows the test rack to have a compact horizontal footprint while maintaining structural stability through the overhead support structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The test rack provides safe, efficient, and cost-effective testing with minimal space occupation, enabling easy simulation of different load conditions on wing sections without disassembly, enhancing safety and reducing costs.
Implementation Method 1
a plurality of fixed pulley systems, which are spaced apart on the test rack body
Implementation Method 2
a plurality of weights, each of which is connected to one end of a rope of a fixed pulley system
Data Source
Figure 1~2
Figure 3
AI summary
This invention relates to the field of test racks, particularly to a wing static load strength test rack, comprising: a test rack body; a plurality of fixed pulley systems are spaced apart on the test rack body; a plurality of weights, each of which is connected to one end of a rope of a fixed pulley system; a plurality of fixtures, each of which is connected to the rope of the fixed pulley system at one end away from the weight and spaced on the wing. The wing static load strength test rack provided by this invention has good safety, high integration, less space occupying, simple loading operation, and improves test efficiency.