1) level set-based 基于水平集 1. With respect to this point,we propose a two-layer hierarchicallevel set-basedtracking frame work in which color information and shape are fused sequentially. 针对传统方法容易受噪音、部分遮挡、背景干扰等因素影响的缺点,提出了一个分层的基于水平集(Level sets)的跟踪...
Level setFunctionally graded materialSensitivity analysisThis paper presents a level set-based heterogeneous object (HO) modeling and optimization method. This HO model employs multiple level set functions to build the geometry, utilizes zero-value level set contours as material source profiles, and ...
Level set-based topology optimisation methods are immune to the problem of grayscales since the boundaries of the optimal configuration are implicitly represented using the level set function. The proposed method updates the level set function using mathematical programming to facilitate the treatment of...
This study uses a Level Set (LS) based Topology Optimisation (TO) approach to maximise the thermal performance of 2D and 3D heatsink designs. Multi-objective optimisation of a thermal compliance/viscous dissipation problem is additionally performed. Numerical model The LS optimisation process i...
This paper presents a level-set-based topology optimization method based on numerically consistent sensitivity analysis. The proposed method uses a direct steepest-descent update of the design variables in a level-set method; the level-set nodal values. An exact Heaviside formulation is used to rel...
(IC) technology nodes still use the 193nm light source. Among all the algorithms for ILT, the level-set-based ILT (LSB-ILT) is a feasible choice with good production result in practice. However, existing ILT algorithms optimize mask at nominal process condition without giving sufficient ...
In this work we employ a modified material interpolation method, in which the element density variables, based on a per-element integration of a regularized Heaviside operator applied to the level-set function, are used as element connectivity design variables. The resulting crisp boundary topology ...
In this paper, we present GridapTopOpt, an extendable framework for level set-based topology optimisation that can be readily distributed across a personal computer or high-performance computing cluster. The package is written in Julia and uses the Gridap package ecosystem for parallel finite ...
This combination allows an easy treatment of the nonlinearities in a level-set-based topology optimization. In Section 2 the general structure of the level-set method is treated. Different approaches that can be chosen for individual parts of this structure are discussed. One of these choices ...
We introduce here a level set-based Eulerian approach that captures all three of these wave propagations. In particular, our method is able to accurately reproduce the quasi-transverse, or quasi-S, waves with cusps, which form a class of multi-valued solutions. The level set formulation we ...