摘要
针对ANSYS不能直接得到民机舱室声场响应特性的问题，结合ANSYS和SYSNOISE ，提出了民机舱室振动声学数值仿真计算方法。以某型客机机舱为原型，基于HYPERMESH建立了有座椅机舱网格模型。利用ANSYS进行机舱结构动力学分析，得到了结构振动频响特性。将结构振动位移结果作为边界激励条件导入SYSNOISE中，采用直接边界元法最终得到了舱内声压频响特性。给出了ANSYS与SYSNOISE的软件接口方法，解决了两者间的数据兼容问题，为进一步的声场优化分析提供了参考。
Abstract
To solve lacking of the acoustic ration characteristics in the noise analysis of cabin , it presents a co-simulation method with ANSYS and SYSNOISE software .Taking an aircraft cabin as the prototype , it builds the structural mesh model of a cabin with chairs based on HYPERMESH software , establishes the dynamic analysis of the model , transfers the vibration frequency response analysis result to the SYSNOISE as the boundary condi -tions for calculating the acoustic pressure frequency response function .It shows the software interface method be-tween ANSYS and SYSNOISE , and solves compatibility problems of the software , illustrates the relationship be-tween structural vibration and acoustic field distribution , provides referential basis for further acoustic field opti-mization analysis .
NETL
NSTL
维普
万方数据