What is the Truss Optimization Tool?
This tool is a web-based application designed for the design and optimization of a Pratt truss structure. A Pratt truss is an engineering design commonly used in bridges, roofs, and other structural systems, featuring upper and lower chords supported by vertical and diagonal elements. This tool allows users to define the truss geometry (length, edge height, middle height, number of segments) and apply loads and fixed supports.
What Does It Do?
- Design Preview: Users can visualize the initial truss shape based on the provided geometry and load conditions.
- Optimization: Using a genetic algorithm , it optimizes the cross-sectional areas of truss elements to minimize weight while satisfying stress, buckling, and maximum deflection constraints.
- Section Suggestions: Provides recommendations for practical steel section profiles (e.g., double angle sections) for real-world implementation.
- Analysis: Calculates displacements, internal forces, and stresses to support engineering analysis.
How Does It Work?
- Input Stage: Users enter the truss length (`L`), edge height (`h_edge`), middle height (`h_mid`), number of segments (`n`), loads, and fixed nodes via the form.
- Preview: Clicking "Preview Truss" generates and displays the initial truss structure.
- Optimization: Clicking "Optimize Truss" triggers the genetic algorithm to optimize element cross-sections.
- Results: The optimized truss, weight, areas, displacements, forces, stresses, and suggested sections are displayed.
This tool is a practical resource for engineering students, designers, and anyone interested in structural analysis and optimization.