Using transfer matrix method to analyze microperforated panel absorber s acoustic characteristic; 2. The possibility and the significance of replacing fibred absorption materials by fibreless materials, especially by microperforated panels, are discussed.
简要地介绍了吸声材料的基本特点，阐述了无纤维性吸声材料（特别是微穿孔板吸声结构）取代传统的纤维性吸声材料的可能性及其重要意义，较详细地介绍了近年来德国以及我国科研人员在无纤维吸声材料研究上所取得的进展。
Theoretical analysis and calculation on the acoustic properties of perforated panel absorber were described herein.
文章对穿孔板背面紧贴吸声薄层时的声学特性进行了理论分析与计算，并与实验结果作出比较。
The basis of flat-panel with no weight and selection of isolator types of shock absorber damping system for vibration equipment to be fully absorbed on the basis of the ground and around the equipment without interference, safe and reliable, in line with the GMP standard.
无基础平板配重及隔震器类型的选用阻尼减震系统，使设备产生的震动被完全吸收，对基础地面及周围设备无干扰，安全可靠，符合GMP标准。
In this paper, based on Maa's theory, the theory of micro perforated panel absorber is summarized, a comparison between the calculated result and the testing result for intermediate and lower frequency standing wave tubes is made.
在微穿孔板消声理论的基础上，根据气动马达消声器的实际需要设计了一种微穿孔板消声器，并通过实验对这种消声器的消声特性和流阻进行了研究。
Study on Acoustic Characteristic of Double Layer Micro-perforated Panel Absorber at High Temperature
【地质】复层，叠层高温下双层串联微穿孔板结构声学特性研究
Study on Acoustic Characteristic of Double Layer Micro-perforated Panel Absorber at High Temperature Moisture Monitoring of Transformer Pressboard Drying Process
高温下双层串联微穿孔板结构声学特性研究变压器绝缘层压板干燥过程微水分检测
The front/rear axle hangs elastically, and disposes with the tube shaped hydraulic shock absorber, for seating smoothly and comfortably. Numerical Simulation and Technological Parameters Optimization on Forming Process of the Inner Panel of Automotive Suspension
前后桥弹性悬挂，并装有筒式液力见在减震器，乘座平顺舒适。轿车后桥悬挂内板成形数值模拟及工艺参数优化
The research of perforated plate sound absorption in the flow The Mode Analysis and Position Selection of Perforated Panel Absorber
穿孔板吸声结构模态分析及位置选择
A Kind of Approximate Arithmetic for Micro-perforated Panel Absorber with Variational Cavity
单层变腔深微穿孔板吸声体的一种理论近似算法
Micro-perforated panel absorber structure, first proposed by famous acoustics Maa, is a widely used sound absorbing structure because of its excellent features.
微穿孔板吸声结构是由我国的著名声学家马大猷首先提出并因其优良的特性得到广泛应用的一种吸声结构。
Based on the accurate theory of the micro-perforated panel absorber, this paper presents one kind of approximate arithmetic for micro-perforated absorber with variational cavity.
基于马大猷教授提出的“微穿孔板吸声体精确理论”，针对带变厚度空腔的微穿孔板吸声体，提出了一种理论近似算法。
The front / rear axle hangs elastically, and disposes with the tube shaped hydraulic shock absorber, for seating smoothly and comfortably. Numerical Simulation and Technological Parameters Optimization on Forming Process of the Inner Panel of Automotive Suspension
前后桥弹性悬挂，并装有筒式液力见在减震器，乘座平顺舒适。轿车后桥悬挂内板成形数值模拟及工艺参数优化