南方科技大学知识苑(SUSTech KC): 用于解决构件应力集中的亚表面细网结构设计方法

Title	用于解决构件应力集中的亚表面细网结构设计方法
Alternative Title	Sub-surface fine net structure design method used for solving stress concentration of member
Author	韩品连; 徐康; 彭文定
First Inventor	韩品连
Original applicant	南方科技大学
First applicant	南方科技大学
Address of First applicant	518000 广东省深圳市南山区西丽学院大道1088号
Current applicant	南方科技大学
Address of Current applicant	518000 广东省深圳市南山区西丽学院大道1088号 (广东,深圳,南山区)
First Current Applicant	南方科技大学
Address of First Current Applicant	518000 广东省深圳市南山区西丽学院大道1088号 (广东,深圳,南山区)
Application Number	CN201610962100.1
Application Date	2016-11-04
Open (Notice) Number	CN106599348A
Date Available	2017-04-26
Status of Patent	驳回
Legal Date	2020-10-13
Subtype	发明申请
SUSTech Authorship	First
Abstract	本发明提供了一种用于解决构件应力集中的亚表面细网结构设计方法，包括如下步骤：（1）获取实体模型和工况，通过分析获取应力集中问题，得到作用域、应力集中系数、以及对于材料的损伤程度的物理性参数；（2）根据步骤（1）获取的工况和应力集中问题，对于应力集中已接近或超过材料承受临界的，或应力集中系数极高的问题，应避开强作用区域，在周围区域以由计算和实验获得的规律分布基于球单元的亚表面细网结构；对于应力集中但低于材料承受临界的问题，在该区域及周边进行亚表面设计，以避免出现应力集中点。本发明的有益效果是：解决外形基本定型的大型机械构件中出现的应力集中问题，同时也实现了在亚表面层面的轻量化设计。
Other Abstract	The invention provides a sub-surface fine net structure design method used for solving stress concentration of a member. The method comprises the following steps of (1) obtaining an entity model and a working condition, obtaining a stress concentration problem through analysis, and obtaining an action domain, a stress concentration coefficient, and physical parameters for a damage degree of a material; and (2) for the problem that the stress concentration is already close to or exceeds a critical value of the material, or a stress concentration coefficient is extremely high, avoiding a strong action region according to the working condition and the stress concentration problem obtained in the step (1), and distributing a sphere unit-based sub-surface fine net structure in a surrounding region by a law obtained through calculation and experiments; and for the problem that the stress concentration is lower than the critical value of the material, performing sub-surface design in the region and the periphery to avoid occurrence of stress concentration points. The method has the beneficial effects that the stress concentration problem occurring in the large mechanical member basically fixed in shape is solved and the lightweight design of the sub-surface level is realized.
CPC Classification Number	G06F30/17 ; G06F30/23
IPC Classification Number	G06F17/50
INPADOC Legal Status	（-REJECTION OF INVENTION PATENT APPLICATION AFTER PUBLICATION）[2020-10-13][CN]
INPADOC Patent Family Count	7
Extended Patent Family Count	7
Priority date	2016-11-04
Patent Agent	于标
Agency	深圳市科吉华烽知识产权事务所(普通合伙)
URL	[Source Record]
Data Source	PatSnap
Document Type	Patent
Identifier	http://kc.sustech.edu.cn/handle/2SGJ60CL/532977
Department	Department of Mechanics and Aerospace Engineering 工学院_机械与能源工程系
Recommended Citation GB/T 7714	韩品连,徐康,彭文定. 用于解决构件应力集中的亚表面细网结构设计方法.

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