# [1]李源,张见明,钟玉东,等.一种与时间步长相关的奇异单元细分法[J].郑州大学学报(工学版),2019,40(01):7-11.[doi:10.13705/j.issn.1671-6833.2018.04.010] 　Lee Yuan,Zhang Jianming,Zhong Yudong,et al.An Singular Element Subdivision Method Related to Time-Step Length[J].Journal of Zhengzhou University (Engineering Science),2019,40(01):7-11.[doi:10.13705/j.issn.1671-6833.2018.04.010] 点击复制 一种与时间步长相关的奇异单元细分法() 分享到： var jiathis_config = { data_track_clickback: true };

40卷

2019年01期

7-11

2019-01-10

## 文章信息/Info

Title:
An Singular Element Subdivision Method Related to Time-Step Length

1. 河南师范大学计算机与信息工程学院;2. 湖南大学机械与运载工程学院;3. 河南工学院机械工程系
Author(s):
1. School of Computer and Information Engineering, Henan Normal University; 2. School of Mechanical and Vehicle Engineering, Hunan University; 3. Department of Mechanical Engineering, Henan Institute of Technology

Keywords:
DOI:
10.13705/j.issn.1671-6833.2018.04.010

A

Abstract:
The singular integral was one of the difficult problems for the Boundary Element Method to solve the physical problems. Its precision had great influence on the accuracy of the calculation result. Element subdivision was the key to solve the singular integral. Aiming at the problem of dynamic analysis. An element subdivision method related to time-step length was proposed. Compared with the traditional method, this method not only considerd the position of the source point in the cell, but also the position of the wave front, which could reflect the segmentation characteristic of the kernel function. Therefore it could more accurately simulate the impact of longitudinal wave and shear wave on the integral of the element. In this paper, the accuracy of the method and its effect on the calculation accuracy were verified by two examples. The results showed that the error was 15.5% less than that of the traditional method for the first analysis step with singularity.

## 相似文献/References:

[1]张俊锋,龚育宁.自紧厚壁圆筒动力分析[J].郑州大学学报(工学版),1997,18(02):18.
Zhang Junfeng,Gong Yuning.Analysis of the power analysis of the tight wall cylindrical[J].Journal of Zhengzhou University (Engineering Science),1997,18(01):18.