云南高校图书馆联盟文献共享服务平台- EIGENFREQUENCY

EIGENFREQUENCY: 作品数：13被引量：8H指数：2; 导出分析报告; 相关领域：理学更多>>; 相关作者：王晓曹云杜涵文殷立新更多>>; 相关机构：东华大学中国科学院上海应用物理研究所更多>>; 相关期刊：《Chinese Journal of Acoustics》《Chinese Physics C》《Computer Modeling in Engineering & Sciences》《航空动力学报》更多>>; 相关基金：国家自然科学基金更多>>

Complex retraction equivalent source method for solving external acoustic problems: 《Chinese Journal of Acoustics》2025年第1期45-65,共21页CHEN Jie XIANG Yu SHI Ziyu; supported by the National Natural Science Foundation of China(12364055,51775121).; In order to overcome the non-unique solution problem of the conventional equivalent source method at the corresponding eigenfrequency,the basic guidelines of adding virtual damping into the equivalent source method is...; 关键词：Equivalent source method Complex source point Virtual damping NONUNIQUENESS EIGENFREQUENCY

Biologically Inspired Girder Structure for the Synchrotron Radiation Facility PETRA IV: 《Journal of Bionic Engineering》2023年第5期1996-2017,共22页Simone Andresen Norbert Meyners Daniel Thoden Markus Körfer Christian Hamm; This study was financially supported by the Innovationsfonds from the Alfred Wegener Institute,Helmholtz Centre for Polar andMarine Research(AWI)and by the Deutsches Elektronen-Synchrotron(DESY),a research centre of the Helmholtz Association,christian.hamm@awi.de。; Lightweight structures are widely used across different industry sectors.However,they get easily excited by external influences,such as vibrations.Undesired high vibration amplitudes can be avoided by shifting the str...; 关键词：Biomimetics Eigenfrequency maximisation Evolutionary structural optimisation Lightweight design Topology optimisation Voronoi combs

A Smooth Bidirectional Evolutionary Structural Optimization of Vibrational Structures for Natural Frequency and Dynamic Compliance: 《Computer Modeling in Engineering & Sciences》2023年第6期2479-2496,共18页Xiaoyan Teng Qiang Li Xudong Jiang; supported by the National Natural Science Foundation of China (Grant No.51505096);the Natural Science Foundation of Heilongjiang Province (Grant No.LH2020E064).; A smooth bidirectional evolutionary structural optimization(SBESO),as a bidirectional version of SESO is proposed to solve the topological optimization of vibrating continuum structures for natural frequencies and dyn...; 关键词：Topology optimization smooth bi-directional evolutionary structural optimization(SBESO) eigenfrequency optimization dynamic stiffness optimization

Numerical evaluation of acoustic characteristics of a thrust chamber with quarter-wave resonators被引量：1: 《Science China(Technological Sciences)》2021年第2期375-386,共12页QIN JianXiu ZHOU LiXin ZHANG HuiQiang WANG Bing; supported by the National Natural Science Foundation of China (Grant No. 91841303)。; Acoustic characteristics of a thrust chamber with quarter-wave resonators are numerically studied based on the unsteady Reynolds-averaged Navier-Stokes(URANS) method. Organized pressure disturbance model and constant-...; 关键词：quarter-wave resonator EIGENFREQUENCY acoustic mode pressure oscillation damping capacity

Level set-based isogeometric topology optimization for maximizing fundamental eigenfrequency被引量：4: 《Frontiers of Mechanical Engineering》2019年第2期222-234,共13页Manman XU Shuting WANG Xianda XIE; the National Natural Science Foundation of China(Grant No.51675197).; Maximizing the fundamental eigenfrequency is an efficient means for vibrating structures to avoid resonance and noises.In this study,we develop an isogeometric analysis(IGA)-based level set model for the fonnulation a...; 关键词：TOPOLOGY optimization level SET method isogeometric analysis EIGENFREQUENCY

A Study of Temperature and Aging Effects on Eigenfrequencies of Concrete Bridges for Health Monitoring: 《Engineering（科研）》2017年第5期396-411,共16页Viet Ha Nguyen Jean Mahowald Sebastian Schommer Stefan Maas Arno Zuerbes; This paper discusses the influence of environmental factors and of normal material aging on the eigenfrequencies of concrete bridges based on monitoring data registered during 4 years of a specific bridge. It is a new...; 关键词：DAMAGE Detection LONG-TERM Monitoring EIGENFREQUENCY AGING TEMPERATURE

Finding vibrations of inclined cable structures by approximately solving governing equations for exterior matrix: 《Applied Mathematics and Mechanics(English Edition)》2015年第11期1383-1402,共20页W.PAULSEN M.MANNING; In this paper, how to compute the eigenfrequencies of the structures composed of a series of inclined cables is shown. The physics of an inclined cable can be complicated, so solving the differential equations even ap...; 关键词：exterior matrix method （EMM） EIGENFREQUENCY inclined cable

Shape and topology optimization for tailoring the ratio between two flexural eigenfrequencies of atomic force microscopy cantilever probe: 《Frontiers of Mechanical Engineering》2014年第1期50-57,共8页Qi XIA Tao ZHOU Michael Yu WANG Tielin SHI; In an operation mode of atomic force micro- scopy that uses a higher eigenmode to determine the physical properties of material surface, the ratio between the eigenfrequency of a higher flexural eigenmode and that of ...; 关键词：atomic force microscopy cantilever probe eigenfrequency optimization

An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus: 《航空动力学报》2013年第2期452-458,共7页Muhammad Adnan SUN Bing ZHANG Jian-wei Sarosh Ali; The modulus of viscoelastic materials varies with excitation frequency.However,during modal analysis of frequency dependent materials,a material evaluation frequency is necessary because stiffness cannot be modified d...; 关键词：solid rocket motor viscoelastic materials modal analysis EIGENFREQUENCY frequency dependent modulus

Research on mechanical stability for third-generation light source: 《Science China(Physics,Mechanics & Astronomy)》2011年第S2期185-188,共4页WANG Xiao YAN ZhongBao DU HanWen GUO Hao; supported by the National Natural Science Foundation of China (Grant No. 10805072); The mechanical stability, a key problem for the 3rd synchrotron light source, is essential for the electron beam performance. This paper analyzes the influences of the first eigenfrequency and Q value on the mechanica...; 关键词：mechanical stability SSRF FIRST EIGENFREQUENCY Q VALUE

EIGENFREQUENCY