17937549. Detailed Sonic Fatigue Analysis simplified abstract (The Boeing Company)
Contents
- 1 Detailed Sonic Fatigue Analysis
Detailed Sonic Fatigue Analysis
Organization Name
Inventor(s)
Michael Shawn Brannon of Summerville SC (US)
Mark Anthony Gasper of Seal Beach CA (US)
Detailed Sonic Fatigue Analysis - A simplified explanation of the abstract
This abstract first appeared for US patent application 17937549 titled 'Detailed Sonic Fatigue Analysis
Simplified Explanation
The patent application abstract describes a method for Sonic fatigue analysis using a finite element model of a structure to calculate eigenvalues, map them to pressure loads, analyze frequency responses, identify critical elements, plot frequency response functions, and calculate applied stress at the critical element.
- Developing a finite element model of a structure
- Calculating eigenvalues representing fundamental frequencies and mode shapes
- Mapping eigenvalues to pressure loads in the model
- Analyzing frequency responses according to pressure spectral density requirements
- Identifying critical elements in the structure
- Plotting frequency response functions for critical elements
- Calculating applied stress based on frequency response functions
Potential Applications
The technology could be applied in industries such as aerospace, automotive, civil engineering, and manufacturing to analyze and mitigate sonic fatigue in structures.
Problems Solved
1. Sonic fatigue analysis can help identify potential weak points in structures prone to failure due to vibration and resonance. 2. By calculating applied stress at critical elements, engineers can proactively address issues before they lead to structural failure.
Benefits
1. Improved structural integrity and longevity of components and systems. 2. Cost savings by preventing unexpected failures and downtime. 3. Enhanced safety for users and operators of structures.
Potential Commercial Applications
Optimizing structural design in aerospace for aircraft components, analyzing vehicle chassis for automotive manufacturers, ensuring the stability of bridges and buildings in civil engineering projects, and improving the durability of machinery in manufacturing processes.
Possible Prior Art
Prior art may include existing methods for structural analysis, fatigue testing, and finite element modeling in various industries. Research papers, patents, and industry standards related to vibration analysis and stress testing could also be considered as prior art.
Unanswered Questions
How does this method compare to traditional fatigue analysis techniques?
This article does not provide a direct comparison between the proposed sonic fatigue analysis method and traditional techniques such as strain gauge testing or modal analysis.
Are there any limitations or constraints in applying this technology to different types of structures?
The article does not address any potential limitations or constraints in applying the sonic fatigue analysis method to structures with varying materials, geometries, or operating conditions.
Original Abstract Submitted
Sonic fatigue analysis is provided. The method comprises developing a finite element model of a structure and calculating, from the finite element model, a number of eigenvalues representing fundamental frequencies and mode shapes for the structure. The eigenvalues are mapped to pressure loads applied to the structure in the finite element model. Frequency responses from the pressure loads are analyzed according to pressure spectral density requirements for the structure, and a critical element in the structure is identified according to the frequency responses. A frequency response function is plotted for the critical element, and an applied stress is calculated according to the frequency response function, wherein the applied stress represents total cumulative stress at the critical element.
