| 1. | Research on sound radiation modes 对声辐射模态的讨论 |
| 2. | Research on the vibration and sound radiation characteristics of stiffened thin plate 加筋薄板结构振动与声辐射特性研究 |
| 3. | The experimental research of restraining the plate ' s sound radiation applied nopd technology 技术在板结构声辐射控制中的实验研究 |
| 4. | In this paper , the effect of disc muffler on vibration and sound radiation of worm shell is discussed 摘要探讨了圆盘型进气消声器对蜗壳振动和声辐射的影响。 |
| 5. | The vibration and sound radiation behaviors of the stem of submarine with rudder and vane are studied 摘要针对带有舵翼的水下航行器尾部结构模型,研究舵翼对水下航行器尾部的振动及声辐射的影响。 |
| 6. | That is to say , in order to measure the adjoint coefficients of sound radiation modes , we should design the particular shape of error sensor 因此我们必须设计出误差传感器来测量所需控制的声辐射模态伴随系数。 |
| 7. | In addition , the sound radiation from fluid - loaded reinforced double cylindrical shells , periodically connected by slabs , is formulated 最后,本文还导出了由实肋板连接的加筋双层壳在水下振动和声辐射的理论公式。 |
| 8. | In these kinds of small enclosures , scattering and diffraction in the course of sound radiation could n ' t be ignored 对于这类封闭空间,声音的低频成份的波长与空间尺寸相当,声音在传播过程中发生的散射、衍射等现象不容忽视。 |
| 9. | In order to reduce sound radiation of a structure , the method of active structural acoustic control ( asac ) was developed in the 1980s 自八十年代后期以来,为了更为有效地降低结构声辐射,人们提出了主动结构声学控制( asac ) 。 |
| 10. | The total sound radiation power can be reduced by counteracting the adjoint coefficients of sound radiation modes of the first n radiation modes 声辐射模态伴随系数与对应的辐射声功率成正比。通过抵消前n阶声辐射模态伴随系数,就可以使总声功率降低。 |