| 基于解析法的弹性板-柱壳结构外场声辐射有源力控制 |
| |
| 引用本文： | 李鸿秋,陈国平,谢琳艳.基于解析法的弹性板-柱壳结构外场声辐射有源力控制[J].金陵科技学院学报,2014(1):26-30. |
| |
| 作者姓名： | 李鸿秋 陈国平 谢琳艳 |
| |
| 作者单位： | [1]金陵科技学院机电学院,江苏南京211169 [2]南京航空航天大学航空宇航学院,江苏南京210016 |
| |
| 基金项目： | 金陵科技学院博士科研基金资助（JIT-B-201219） |
| |
| 摘 要： | 建立了弹性板-壳-声腔耦合模型,研究弹性板(壳)结构振动与声场耦合的特性,基于板壳振动微分方程,利用模态叠加法求解位移响应,分析结构与声场耦合之后,弹性板-壳-声腔结构的振动产生的声辐射,分别推导弹性板以及圆柱壳受到外载荷作用情况下振动产生声辐射指定外场点的声压级公式;然后根据点源组合原理,探讨有源力噪声控制,并给出算例予以验证。
|
| 关 键 词： | 弹性板-柱-腔模型 模态叠加法 声振耦合 有源力控制 |
Active Force to Control Exterior Acoustic Radiation of a Plate-ended Cylindrical Shell Based on the Analytic Method |
| |
| LI Hong-qiu,CHEN Guo-ping,XIE Lin-yan.Active Force to Control Exterior Acoustic Radiation of a Plate-ended Cylindrical Shell Based on the Analytic Method[J].Journal of Jinling Institute of Technology,2014(1):26-30. |
| |
| Authors: | LI Hong-qiu CHEN Guo-ping XIE Lin-yan |
| |
| Institution: | 1. Jingling Institute of Technology, Nanjing 211169, China; 2. Nanjing University of Aeronautics and Astronautics, Nanjing 210094, China) |
| |
| Abstract: | The vibration and the coupled sound field of a plate-ended cylindrical shell are studied.Based on the mode superposition method,an analytic formulation between the struc-ture and acoustic cavity is developed.The analytic expression of the exterior sound radiation pressure with the force exerted either on the plate or on the shell is calculated.The active force control is easy to realize. |
| |
| Keywords: | the plate-shell-cavity system the model suppression method structural-acoustic coupling active force control |
| 本文献已被 CNKI 维普 等数据库收录！ |
