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- Then acoustic radiative pressure level is computed with a 3-D FE acoustic-field model and bounary conditions imported from the result of vibration response by infinite FEM. 建立齿轮箱外声场二维有限元模型,导入齿轮箱振动响应结果作为声学边界条件,并采用无限有限元法计算了辐射声压级。
- acoustic radiation pressure 声辐射压
- Based on the acoustic radiation mode analysis, the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed. 摘要基于声辐射模态分析,建立了外部场压和结构表面振动速度之间关系的传递矩阵。
- It is important in ASAC system based on acoustic radiation modes to obtain adjoint coefficient of the radiation modes. 基于声辐射模态理论进行ASAC控制系统中的一个重要内容就是获得声辐射模态伴随系数。
- It is important in ASAC based on acoustic radiation modes to obtain adjoint coefficients of the radiation modes. 声辐射模态伴随系数的获取是基于声辐射模态理论进行 ASAC控制中的重要环节。
- A mathematical model about acoustic radiation from structure submerged in unbounded sound field was developed using boundary element method. 摘要建立了无界声场中结构体声辐射的边界元数学模型。
- We analyze the effect on the optical radiation pressure for corpuscules by laser microbeam. 本文分析了激光微束光场辐射压力对微粒子的作用。
- The examples actualize analysis of bilateral coupled vibration and acoustic radiation by using transitivity of CAE software results. 还利用CAE软件结果的可移植性,考虑了半封闭加筋圆柱结构内外分布不同介质时,实现了双边耦合振动声辐射分析求解。
- At the same time, matter was freed of the radiation pressure that had resisted the contraction of dense clumps. 同时,物质也从原本会抵抗致密气团重力收缩的辐射压力下解放出来。
- Boundary element methods are used to calculate acoustic radiation of the piping system, which provides the theoretical direction for decr... 计算分析结果表明,本文所建立的振动和声辐射模型及算法有效,有助于该类问题的解决。
- And by comparing the heights of the two peaks, cosmologists can gauge the relative strengths of gravity and radiation pressure in the early universe. 并且,从两峰之间高度的比较,宇宙学家得以测度早期宇宙中重力与辐射压力的相对强度。
- Vibration transmission and underwater acoustic radiation characteristics experiment of floating raft system has an important technical application prospect. 对浮筏系统的振动传递及水下声辐射特性进行试验研究有其重要的工程应用前景。
- The transducers in acoustic logging tool are usually cylindrical piezoelectrical transducers and their acoustic radiation and acceptance have preferred directivity. 换能器的声辐射与接收指向性由其形状与尺寸确定。
- It brings up the disciplinarian of sun radiation pressure affecting the variation of the MW rotation rate with analyzing actual data of MW,and designs a model to validate it. 通过分析动量轮转速实际测量数据,得出太阳辐射压力影响转速变化的规律,并利用理论分析进行验证。
- A coupled FEM/BEM for solving fluid-structure interaction problem in structure-borne noise propagation and underwater acoustic radiation is present in this paper. 摘要本文以偶合的有限元素/边界元素法,来处理结构噪音传播与水中噪音辐射中弹性结构物与流体之互制问题。
- The concept of the radiation pressure and the physical essence of it are presented based on the photon gas. The unified formula for the radiation pressure are given. 把辐射场看成是一群光子.;从粒子的观点介绍了辐射压的概念,阐明了辐射压的物理实质,给出了计算辐射压的一般公式
- The process is the same as in the laser wakefield case, except now the particle beam's electric field does the pushing instead of the laser beam's radiation pressure. 这个过程跟雷射尾迹场的情形一样,只是现在推动电子的,是粒子束的电场而不是雷射光束的辐射光压。
- Based on the modal analysis and harmonic respondence analysis of piping system, the acoustic radiation efficiency is calculated;therefore it illustrates the connection between the vibration and noise. 摘要基于管道振动的模态分析及谐响应分析,计算管道的声辐射效率,建立结构体振动与其辐射噪声之间的关系。
- It reviews the developing process of researching acoustic radiation of underwater elastic structures excited by mechanical forces chiefly, and puts forward the trends of the acoustoelasticity briefly. 本文系统综述声弹性研究的基本内容和方法以及重要结果,重点回顾水下弹性结构受机械力激励的外场声辐射研究的发展过程,并简单归纳声弹性研究的发展趋势。