动态测试

This paper introduces the research and development of the dynamic testing and fault diagnosis system software of barbette.

摘要本文介绍炮塔动态测试及故障诊断系统软件的研究与开发。

From simulation, the 1st modal frequency and modal deformation could be achieved under different fixed ways.

然后结合模态实验的方法进行了不同边界条件下的动态测试分析。

Oil exploitation mining method is facing a great challenge: changing from Steam Air Gorge and Disgorge to a new method, it is a inevitable need for the new dynamic test.

石油开采面临由蒸汽吞吐向新的开采方式转换的巨大挑战，新的动态测试方式是必然需要。

Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.

在对硅微机械扭转镜光致动器的光机电特性系统地理论研究的基础上提出了硅微机械扭转镜光致动器的结构设计准则。3、提出了单轴双梁厚度差分结构、单轴双柔性折叠梁结构、单轴双梁垂直扭转梳齿结构、双轴四梁差动复合微镜结构以及以上四种基本结构组合后的衍生结构等五种工艺加工技术兼容的新型的硅微机械扭转镜光致动器，对器件关键结构薄厚度、高耐疲劳扭转梁进行了局部加强的变形补偿设计，建立了器件的三维实体模型以及两维降阶模型，对提出的新结构硅微机械扭转镜光致动器进行了系统的静力学、动力学、静电场、力电耦合和流体固体耦合的建模仿真与优化设计，同时设计并分析了三种可实现单芯片集成的弹性光纤定位夹紧结构。4、提出了组合体硅微加工技术与表面硅微加工技术、兼容同一套光刻版图、可分别基于SOI 晶片和普通Si 晶片、适应于制造提出的各种新结构单晶硅和多晶硅硅微机械扭转镜光致动器的三套柔性加工工艺流程，开展了一系列重要工艺步骤的单项工艺试验，对工艺流程与工艺参数进行了优化，针对加工过程中出现的具有普遍意义的典型工艺问题进行了讨论和分析，并提出了解决方法。5、创新性地将模糊图像合成技术、频闪图像匹配技术、频闪Mirau 显微干涉技术与显微激光多普勒测振技术有机结合，建立起了一套周期运动测量与瞬态运动测量相结合、单点运动测量与全视场运动测量相结合、满足不同MEMS 器件各种动态测试要求的集成的MEMS 三维六自由度微运动精密测量系统。

At the end time of development,we use the Technology of Static test and Dynamic test to ensure the Systems Quality.

开发后期采取了静态测试和动态测试相接合的策略，保证了系统的质量。

The stress, displacement and acting time exerted on the powder by a drophammer were measured by using a dynamics electrometry controlled by a single board micro-tcomputer.

采用了装有单板计算机的动态测试装置测定落锤冲击粉末体产生的应力、位移和时间。

According to the characters of the time series signals by dynamical measure, a new method for removing the singular points, absolute mean value method,was put forward, in which the range of the threshold W was determined.

根据动态测试中数字时序信号的特点提出了一种剔除坏点的新方法——绝对均值法，并给出了绝对均值法中阀值W确定的范围。

A single frequency sinusoidal correlation method of testing dynamic testing system is simple, does not require system identification.

详细说明：单一频率的正弦相关法动态测试系统的测试方法简单，不需要对系统进行辨识。

Measured structural noise and air-borne noise of the model under different condition, as well as picked up and analyze the vibration signal.

6对实验样机进行了不同工况下的结构噪声和空气噪声动态测试，同时进行了该实验样机的故障振动测试，采集了减速器的振动信号，并对故障信号进行了分析。

Based on the whole-system dynamic accuracy theory and the dynamic error decomposition and tracing theory,this paper developed a new theory of dynamic measuring-system accuracy losing diagnosis theory .

基于全系统动态精度理论和误差分解与溯源理论，提出了动态测试系统精度损失诊断理论。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。