Based on the sound absorption mechanism of Helmholtz Resonator,the advantage of soft tube length is fully used in the new structure,and thus the low-frequency noise can be controled easily.
提出了一种新型的宽频带共振吸声结构,该结构基于赫姆霍兹共振吸声机理,并充分利用了软管在长度上的优势,易于实现对低频噪声的控制。
A new structure which lays sound absorption materials on the surface of Helmholtz resonator with extended necks is proposed in this paper,and then the theoretical analysis and numerical simulation of its sound absorption characteristics are done.
提出了赫姆霍兹共振吸声结构附加吸声材料的新型吸声结构,在插入长管的赫姆霍兹共振吸声结构表面敷贴吸声材料,对其吸声特性进行了理论分析与仿真计算。
Research on the Relationship between Helmholtz and German Medical Community;
亥姆霍兹与德国医学共同体的关系刍议
The Influence of Helmholtz s on the Sensations of Tone on the Music Theory Study in China;
亥姆霍兹《论音的感觉》对我国音乐理论研究的影响
Iran s Fight for Hormuz Island in the 16th and 17th Centuries;
16-17世纪伊朗捍卫霍尔木兹岛主权论
Young-Helmholtz theory of color vision
彩色视觉的杨-赫姆霍兹理论
Outstanding Mentor and his Gifted Student --Helmholtz s Influence to Hertz;
杰出的导师和天才的学生——赫姆霍兹对赫兹的影响
Effects of elasticity on the Helmholtz resonators
弹性对赫姆霍兹共振器声学特性的影响
I have thus played the sedulous ape to FIazhtt, to Lamb, to Wordsworth, to Defoe, to Hawthorne.
我曾经这样依样画葫芦地模仿过赫兹利特、兰姆、华兹华斯、笛福、霍桑。
kirchhoff helmholtz flow
基尔霍夫 亥姆霍兹怜
Helmholtz-Keteller formula
亥姆霍兹－克特勒公式
Helmholtz-Lagrange theorem
亥姆霍兹－拉格朗日定理
gibbs helmholtz equation
吉布斯 亥姆霍兹方程式
Helmholtz inhomogeneous medium
亥姆霍兹型非均匀介质
Smith-Helmholtz law
史密斯－亥姆霍兹定律
kelvin helmholtz contractio
开耳文亥姆霍兹缩短
Lagrange-Helmholtz equation
拉格朗日－亥姆霍兹方程
Helmholtz velocity decomposing theorem
亥姆霍兹速度分解定理
Helmholtz resonance theory of hearing
赫尔姆霍茨听觉共鸣说
Hemholtz-Kelvin contraction time
亥姆霍兹一开尔芬收缩时间
Helmholtz principle of minimum energy dissipatio
亥姆霍兹最小能量损耗原理
Kelvin-Helmholtz instability
开尔文－亥姆霍兹不稳定性
Young-Helmholtz theory of colour vision
杨－亥姆霍兹彩色视觉理论