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沈玥,女,副教授,陕西榆林人,从2019年至2020年在西安建筑科技大学理学院数学系工作,2020年至今在大数据科学系工作。2010-2014年在内蒙古大学数学科学学院学习,获得数理学基地专业理学学士学位;2014-2019年在中国科学院数学与系统科学研究院硕博连读,获理学博士学位,专业为计算数学。2025-2026年在西安交通大学以国内访问学者身份访学一年。目前主要从事研究方向为偏微分方程约束最优控制问题的数值分析,有限元方法的误差估计以及收敛性分析以及基于神经网络方法求解偏微分方程,在Journal of Computational and Applied Mathematics、Numerical Mathematics:Theory, Methods and Applications、Computers & Mathematics with Applica...
沈玥
Associate Professor
Paper Publications
Nonlinear vibration with discontinuities in a fractal space: its variational formulation and periodic property
Release time:2024-10-25 Hits:
Affiliation of Author(s):
理学院
Journal:
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
Key Words:
Fractal Oscillator; Fractal Space; Variational Theory; Periodic Property
Abstract:
A vibration system with discontinuities has triggered off rocketing interest in various fields including mechanical engineering, physics, and mathematics because it has many striking and amazing properties which cannot be unexplained by traditional vibration theory. This paper studies the problem using the energy conservation frame in a fractal time. A variational formulation is developed, and its periodic property is elucidated by the frequency–amplitude formulation. For discontinuity, this paper aims to propose a new frequency formulation by means of the golden average. Comparison between the approximate and exact frequency values is presented to validate our method.
Co-author:
ABDULRAHMAN ALI ALSOLAMI,田丹
First Author:
Shen Yue
Indexed by:
Journal paper
Correspondence Author:
何春辉
Volume:
31/07/9
ISSN No.:
0218-348X
Translation or Not:
no
Date of Publication:
2023-08-01

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