Support Structure Layout for Reduced External Thermal Stress
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing support structures and methods in construction, machinery, marine, power, and aerospace fields face challenges in managing thermal stress caused by temperature changes, leading to high material and design requirements, structural discontinuity, and increased costs.
Innovation Solution
A support method involving a rod and support structure is proposed, where the position of the support is optimized to reduce external thermal stress by setting a specific ratio of distances before and after a temperature change, thereby minimizing material and structural complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fixed hinged supports are used in high temperature regions, then the structure can resist thermal forces, but the supports bear large concentrated forces requiring high material strength and durability
Solution Approach 1:
The patent changes the positional parameter of the support relative to the temperature gradient. By positioning the support such that its projection on the temperature change line falls within a specific range (0.21≤Δa/Δ≤0.62), the thermal stress distribution is optimized, reducing concentrated forces on the support while maintaining structural integrity under thermal loads.
2Stress or pressure
If deformation joints are used to release thermal stress, then thermal stress is reduced, but structural discontinuity occurs requiring repeated members and multiple independent structural systems
Solution Approach 1:
Instead of using deformation joints that create structural discontinuity, the patent changes the support position parameter to continuously manage thermal stress. The optimized positioning (0.21≤Δa/Δ≤0.62) allows the structure to accommodate thermal deformation smoothly, maintaining structural continuity while reducing thermal stress, thereby eliminating the need for repeated members and multiple independent systems.
3Device complexity
If fixed hinged supports are limited to non-high-temperature regions, then material requirements are reduced, but the number of supports that can be effectively placed is limited
Solution Approach 1:
The patent expands the adaptability of support placement by changing the positional parameter criterion. Instead of restricting supports to non-high-temperature regions, the patent defines a specific positional range (0.21≤Δa/Δ≤0.62) relative to the temperature gradient that allows supports to be effectively placed in high-temperature regions while maintaining reduced material requirements and optimal thermal stress distribution.
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
This approach effectively reduces external thermal stress, decreases the number of parts and costs, and avoids issues such as concentrated stress, high design complexity, and structural discontinuity associated with traditional methods.
Implementation Method 1
thermal stress is generated in an object when expansion or contraction caused by a temperature change is restrained
Data Source
AI summary
The disclosure provides a support method of a support structure, and a support structure, which can reduce external thermal stress. In the support method, a connection point is arranged on a supported body, an end of a rod is arranged at the connection point, the other end is arranged at a support, and a position of the support is selected according to the following relation: as for a projection point (Pia) perpendicularly projected from the support (200) onto a line connecting a pre-temperature change position (Pi) and a post-temperature change position (P′i) of the connection point, a ratio (Δa/Δ) of a distance (Δa) between the pre-temperature change position (Pi) and the projection point (Pia) to a distance (Δ) between the pre-temperature change position (Pi) and the post-temperature change position (P′i) falls within a predetermined range.