[Oral Presentation]最密饱和填充下的最优颗粒形状研究

Organized By

Hohai University

Monash University

Co-organized by

Southeast University

Jiangxi University of Science and Technology

Northeast University

DUT-BSU Scientific Research and Innovation Center

Suzhou University of Science and Technology

State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment

Sponsoring agency

KELI SDEM Software (Dalian) Co., Ltd.

Sugon Smart Computing Information Technology Co., Ltd.

Beijing Paratera Technology Co., Ltd.

Simpop Information Technology Co., Ltd.

Important Dates

Conference Announcement

December 2023, release First Round Announcement
Abstract Submission Deadline
March 31^th, 2024
Paper Submission Deadline
April 30^th, 2024
Registration
From January 1^st, 2024
Conference Schedule
May 31^st (Friday), 2024 On-Site Registration
June 1^st to 3^rd, 2024 Conference

最密饱和填充下的最优颗粒形状研究

ID：154 Submission ID：144 View Protection：ATTENDEE Updated Time：2024-04-10 17:20:53 Hits：817 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

Session：[No Session] » [No Session Block]

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Abstract

饱和填充是颗粒的一种随机填充状态，广泛应用于材料理化性质的研究。优化颗粒形状，以提高其饱和填充率是一个重要问题。已知的三维颗粒最优形状由椭球取得，其饱和填充率约0.4377。本文对不对称球柱、圆锥、四面体等一系列三维非对称形状的饱和填充率开展研究。发现不对称球柱最优形状的饱和填充率约0.4338，圆锥最优形状的饱和填充率约0.4398。四面体呈现出两种最优形状，其饱和填充率分别约为0.4789和0.4769，这一发现超越了已知的最高饱和填充率。对最优形状的颗粒吸附动力学分析表明，最优四面体形状具有较高的自由度和颗粒数目增长速度。通过对偶密度关联函数对填充结构的分析表明最优四面体形状能够较快地从局部填充率过渡到整体填充率。本文给出了三维颗粒中具备最高饱和填充率的最优形状，为优化颗粒形状和提高填充率提供了指导。

Keywords

颗粒填充,饱和填充,填充率,形状优化,四面体

Speaker

钱昱同

北京大学

Submission Author

钱昱同北京大学

李水乡北京大学

Sponsored By

Hohai University

Panel of Computational Mechanics on Granular Materials, Working Party of Computational Mechanics, Chinese Society of Theoretical and Applied Mechanics

Jiangsu Society of Theoretical and Applied Mechanics