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- A synmmetrical finite element model for structure acoustic coupling analysis of the automobile passenger compartment is set up. 建立了车辆乘坐室声振耦合分析的对称有限元模型。
- Simulation results for the structural acoustical coupling in enclosed space show that the structure-brone noise can be reduced effectively in assigned frequency band, the maximum control value for noise peak value is near 20 dB(A). 封闭空间结构振动声耦合反馈力控制仿真结果表明 :通过合理选择性能加权函数 ;噪声可以在指定频带得到良好的控制 ;最大噪声峰值近 2 0dB(A) .
- An error sensor strategy is a key step in implementing an active structural acoustic control(ASAC). 误差传感策略是实现主动结构声学控制的关键的一环。
- Based on the acoustic transfer vector concept(ATV),the application approach to structural acoustic radiated prediction using the ATV technology for I.C.engine was studied. 基于声传递向量(ATV)的概念,研究探讨了ATV技术在内燃机结构辐射噪声仿真预测上的应用方法和途径。
- 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)。
- In the active structural acoustic control based on radiation modes,the cancellation of the dominant radiation modes and determination of the arrangement of secondary forces are of virtual important. 在基于声辐射模态理论的结构声有源控制中,主导辐射模态的确定及抵消策略是至关重要的,它直接决定次级力源的优化布放及有源控制的效果。
- Active Structure Acoustic Control(ASAC) is the leading field in the area of Vibration and Noise Control. 结构振动声辐射主动控制技术(ASAC)是目前国际上振动噪声主动控制研究领域的前沿方向之一,有着巨大的潜在应用价值。
- Active structural acoustic control 主动结构声学控制
- An active structure acoustic control system (ASAC) used in an vibro-acoustic rectangle enclosure is presented with the objective of minimizing acoustic energy density. 以矩形封闭空间结构振动-声耦合系统的为研究对象，采用力控方式，建立了以声能量密度最小为控制目标的自适应主动结构声控制系统(ASAC)。
- The judge divorced the young couple. 法官判决这对青年夫妻离婚。
- I put down a couple of cases of claret last year. 去年我把几箱红葡萄酒放进地窖使之香醇。
- The newly married couple are really a happy pair. 那对新婚夫妇真是快乐的一对。
- They've gone down to Brighton for a couple of days. 他们已南下到布赖顿市住两天。
- Active Structural Acoustic Control Using Piezoelectric Sensors 通过设计压电式传感器实现结构声有源控制
- I'll be back in a couple of days. 我过几天就回来。
- The couple seemed to be on cloud nine. 那对夫妇看上去极其幸福。
- The bowler let go a couple of scorchers. 投球手投出了几个快球。
- He patched up a couple of old tires. 他补了几条旧车胎。
- The couple next door are always arguing. 邻居的夫妇总吵架。
- The new couple were cordially received. 这对新婚夫妻受到热诚的欢迎。
