A5016842238- Numerical methods in engineering
- Acoustic Wave Phenomena Research
- Electromagnetic Simulation and Numerical Methods
- Computational Geometry and Mesh Generation
- Numerical methods in inverse problems
- Ultrasonics and Acoustic Wave Propagation
- 3D Shape Modeling and Analysis
- Advanced Numerical Analysis Techniques
- Electromagnetic Scattering and Analysis
Qingdao University
2022-2024
Institute of Mechanics
2022
The sound barrier is an important means to reduce noise caused by traveling vehicles on roads or railways. Structural design and optimization of the can effectively use materials improve reduction effect. In this paper, a new isogeometric singular boundary method proposed applied shape barriers. geometric structure accurately represented using non-uniform rational B-splines. acoustic sensitivity control points was calculated direct differentiation adjoint variable method. After that, moving...
Abstract This paper proposes a semi‐analytical and local meshless collocation method, the localized method of fundamental solutions (LMFS), to address three‐dimensional (3D) acoustic inverse problems in complex domains. The proposed approach is recently developed numerical scheme with potential being mathematically simple, numerically accurate, requiring less computational time storage. In LMFS, an overdetermined sparse linear system constructed by using known data at nodes on accessible...
This paper proposes a fast meshless scheme for acoustic sensitivity analysis by using the Burton–Miller-type singular boundary method (BM-SBM) and recursive skeletonization factorization (RSF). The Burton–Miller formulation was adopted to circumvent fictitious frequency that occurs in external analysis, then direct differentiation used obtain of sound pressure design variables. More importantly, RSF employed solve resultant linear system obtained BM-SBM. is technique based on multilevel...