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| Uppdatering och kalibrering av finita elementmodeller× | Topologioptimering (SIMP)× | |
|---|---|---|
| Ämnesområde | Tillförlitlighetsteknik | Tillförlitlighetsteknik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 2001 | 1988 |
| Upphovsperson≠ | John Mottershead and Michael Friswell | Martin Bendsoe and Noboru Kikuchi |
| Typ≠ | System identification methodology | Generative design algorithm |
| Ursprungskälla≠ | Mottershead, J. E., Link, M., & Friswell, M. I. (2011). The sensitivity method in finite element model updating: A tutorial. Mechanical Systems and Signal Processing, 25(7), 2275-2296. DOI ↗ | Bendsoe, M. P., & Kikuchi, N. (1988). Generating optimal topologies in structural design using a homogenization method. Computer Methods in Applied Mechanics and Engineering, 71(2), 197-224. link ↗ |
| Alias≠ | Model updating, Model calibration, FEM updating | SIMP, Topology design, Generative design, Density-based optimization |
| Närliggande | 4 | 4 |
| Sammanfattning≠ | Finite Element Model (FEM) Updating is the process of refining a numerical structural model to match measured behavior (modal properties, vibrations, static displacements) from the physical structure. By comparing computational predictions to experimental data and systematically adjusting uncertain model parameters (material properties, boundary conditions, joint stiffness), engineers create more accurate models for design decisions, damage detection, and life prediction. Formalized by Mottershead and Friswell, FEM updating bridges the gap between idealized computer models and real-world structures. | Topology Optimization is a computational method for distributing material optimally within a design space to maximize structural performance (strength, stiffness) while minimizing weight or cost. The Solid Isotropic Material with Penalization (SIMP) method, developed by Bendsoe and Kikuchi (1988), iteratively refines a material density distribution across the design domain using sensitivity analysis and gradient-based optimization. SIMP has revolutionized structural design in aerospace, automotive, and mechanical engineering by automating the generation of efficient structures. |
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