Developed for the Defense Advanced Research Projects Agency, the novel material could be used for battery electrodes and acoustic, vibration or shock energy absorption. 作为美国国防部高等研究计划局的研究项目,这次研发的创新物料亦可用于制造电池电极丶音响或减震产品。
7th, Li Jian British Smoke cage earth, acoustic shock blue sky. 烟笼大地,声震蓝天。
Effects of Quantity and Arrangement of Elements on the Acoustic Field of Multi-elements Shock Wave Generator 阵元数量和排列方式对多阵元激波发生器声场的影响
Study on Acoustic Emission Phenomena of Plastic Bonded Explosive During Thermal Shock 高聚物粘结炸药热冲击过程中的声发射现象研究
With the application of acoustic emission testing device, we can acquire the acoustic signal under different temperature conditions by the monitor of thermal shock process. 利用声发射(AE)仪器对热冲击过程进行监测,获得炸药材料在不同温度的热冲击过程中声发射信号。
A numerical method considering anti-sound effects is proposed to calculate nonlinear sound propagation in varying area hard-wall ducts with transonic flow and without acoustic shock waves. 本文提出了包括考虑反声效应的一种数值方法来计算跨声速变截面硬壁管道内无声激波非线性声传播问题。
The basic principles of acoustic emission technique was introduced. Thermal shock damage strength degrade and microcrack propagation in mullite aluminum titanate ceramic material during quenching in oil was monitored by appling the acoustic emission technique. 介绍了声发射技术的基本原理,用声发射技术监测了莫来石&钛酸铝陶瓷材料急冷时热震损伤强度衰减及裂纹的扩展过程。
The shock isolating principle has been used to design two packaging models of the acoustic sensor in the acoustic-vibration sensors system. The first model is the traditional type of the shock isolating packaging, and the second model is double J-like shock isolating packaging. 运用振动隔离原理设计声-振动传感器系统中声音传感器的两种隔震封装模型:传统式隔震封装模型和双J形隔震封装模型。
Because the acoustic impedance value of GRP hull in normal direction is relatively close to water's, the acoustic medium property of the GRP hull is applied to analyze the fluid-structure interaction in the early time after the shock wave impinging the wet surface. 所谓修正的双重渐近方法是考虑了玻璃钢船体法向的声阻抗比较接近于水的声阻抗,所以玻璃钢材料的声学介质性质被用来分析湿表面上早期的高频流固相互作用。
In this paper, the inspection method of detonator output were experimented and evaluated, which includes the plate cutting test ( lead plate test), acoustic level inspection, explosion in water and inspection of shock wave in little container, etc. 文章对***输出的检测方法进行试验和探讨,包括铅板试验、声级测量、水下爆炸和小爆炸容器中冲击波的测量等。
A acoustic oscillation phenomenon exists in the shock wave spreading process is discovered. 发现了激波传播过程中存在声学震荡现象。