Feature-based multiresolution modeling of solids

Lee, Sang Hun

doi:10.1145/1095878.1095887

Cited by 45 publications

(22 citation statements)

References 13 publications

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“…Although the research focus of feature interoperation in this paper is different from that of feature-based multi-resolution model in [42,44], this section takes advantage of the formal method to describe the problem.…”

Section: Formalization Methods For Feature-based Interoperabilitymentioning

confidence: 99%

Quantitative optimization of interoperability during feature-based data exchange

Zhang

Han

et al. 2015

ICA

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Abstract. Sharing feature-based computer-aided design (CAD) models is a challenging problem that is frequently encountered among heterogeneous CAD systems. In this work, a new asymmetric strategy is presented to enrich the theory of feature-based interoperability, particularly when addressing a singular feature or singular sketch. This paper analyzes the semantic asymmetry singular feature interoperability (SA-SFI) and parameter asymmetry singular sketch interoperability (PA-SSI) in detail. We pay special attention to the problem of PA-SSI, which is universally significant in collaborative product development (CPD). The objective of PA-SSI is to develop an optimized model to exchange a singular sketch (spline) to ensure that the exchanged model both maintains high geometric fidelity and can be effectively edited in the target CAD system. The proposed method applies the estimation of distribution algorithm (EDA) to automatically solve this problem, and a Gaussian mixture model (GMM) is built according to the promising solutions. Furthermore, Hausdorff distance is adopted to calculate the fitness, and a local optimization operator is designed to enhance the global search capability of the population. Experimental results demonstrate that the proposed approach can maintain a sufficiently high geometric fidelity, and ensure that the exchanged model of the target CAD system can be parametrically edited.

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Section: Formalization Methods For Feature-based Interoperabilitymentioning

confidence: 99%

Quantitative optimization of interoperability during feature-based data exchange

Zhang

Han

et al. 2015

ICA

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“…Lee designed the Progressive Solid Model (PSM) to support the multiresolution solid model [48]. Lee developed a feature based multi-resolution modeling method [49,50], which is based on the calculation of the "valid volume".…”

Section: Multi-level Design Data Sharing Based On the Multi-resolutiomentioning

confidence: 99%

Encryption based partial sharing of CAD models

Cai

et al. 2015

ICA

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Abstract. Model security for collaborative product development in a networked environment (or called networked manufacturing, grid manufacturing, and cloud manufacturing) is an important and also challenging research issue. An encryption based partial sharing approach for CAD models has been developed and presented in this paper. First, a random invertible decimal matrix to support the encryption approach is proposed, with which parts of a CAD model can be selected flexibly by the model owner for encrypting by different keys; Second, in order to guarantee the security, a dual-key mode and a key based authorization mechanism are proposed. Based on the model, different levels of security are achieved based on different key spaces, and the key based authorization mechanism is used for the model owner to control the partial access of the CAD model flexibly.

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“…A feature based non-manifold modeling system is developed by Lee et al to address the needs of both CAD and CAE applications simultaneously from a single model [Lee05b,Lee05c,Lee06a,Lee06b]. This system supports feature based multi-resolution and multi-abstraction modeling capabilities.…”

Section: Effective Volume Based Simplificationmentioning

confidence: 99%

A survey of CAD model simplification techniques for physics-based simulation applications

Thakur

Banerjee

Gupta

2009

Computer-Aided Design

163

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Automated CAD model simplification plays an important role in effectively utilizing physicsbased simulation during the product realization process. Currently a rich body of literature exists that describe many successful techniques for fully-automatic or semi-automatic simplification of CAD models for a wide variety of applications. The purpose of this paper is to compile a list of the techniques that are relevant for physics-based simulations problems and to characterize them based on their attributes. We have classified them into the following four categories: techniques based on surface entity based operators, volume entity based operators, explicit feature based operators, and dimension reduction operators. This paper also presents the necessary background information in the CAD model representation to assist the new readers. We conclude the paper by outlining open research directions in this field.

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Feature-based multiresolution modeling of solids

Cited by 45 publications

References 13 publications

Quantitative optimization of interoperability during feature-based data exchange

Quantitative optimization of interoperability during feature-based data exchange

Encryption based partial sharing of CAD models

A survey of CAD model simplification techniques for physics-based simulation applications

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