动态测试

Electro-hydraulic servo valve is the key component of electro-hydraulic servo system, the test of its static and dynamic characteristic is significant in theories and test research of electro-hydraulic servo system.

电液伺服阀是电液伺服系统中的关键元件，其静态和动态特性测试在电液伺服系统的理论与实验研究中具有十分重要的意义。

Fundamental theory research, system control theories and methods, dynamic characteristics tests, and fictitious simulation technologies will play an important role in the development of drill string mechanics.

基础理论研究、系统控制论理论与研究方法、动态特性测试及虚拟仿真技术将在钻柱力学的未来发展中扮演重要角色。

The system is base on Spring by integrating Struts and Hibernate.First,the paper explained for using Spring and advantage of using Spring;next,analyse system's function,devide function module,choose development tool and implementation technical,design database module on the base of user's demand and system environmental;then,make implementation details for the modules of system,emphatically expound some technical,like use of Spring Ioc and AOP,certification model of licence,document manage base on Jacob and dynamic function calls;last,test the system and give advice to improve the defects.

本系统是基于Spring框架构建的J2EE系统，并整合了Struts和Hibernate框架，文章首先论述了采用Spring框架开发的理由和采用该框架的好处；其次根据用户需求和系统使用环境，对系统功能进行分析，划分出各个功能模块，确定了开发工具和实现技术，并设计出数据库模型；然后对系统各模块进行详细设计，着重阐述了Spring IoC和AOP的使用、许可证认证模式、基于Jacob的文档处理和函数的动态调用等关键技术；最后对系统进行功能测试，并提出对一些不足之处的改进思路。

In the paper the author relates systematically the research fruits in the program of Research on Sand Slurry Abrasion Mechanisms of Dredging Conditions and New Wear-Resistant Materials. The main contents and innovations are listed as follows.Summarized and analyzed are the wear researches and developments, and the methods of increasing materials wear-resistance. From the viewpoint of the characteristics of two-phase liquid sand slurry wear, combined with the examination and study on easily damaged workpieces, the wear failures basic rules are pointed out, of the pump shell and the cutter-piece on service, and the general principles of material wear-resistant designs put forward. The sand slurry abrasion tester has been designed and developed which can simulate general dredging conditions. Summarized and presented are the position-exchange measuring method of sand slurry abrasion test and the experiment specification of sand slurry wear test of dredging conditions.

文中系统论述了作者在疏浚工况泥沙磨损机理及其耐磨新材料课题研究中的工作成果，主要研究内容和创新点如下：总结分析了磨损研究动态和提高材料耐磨性的方法；从两相流泥沙磨损的特点出发，结合对失效易损件的考察研究，分析指出了现役泥泵壳和绞刀片磨损失效的基本规律，提出了材料耐磨损设计的基本思想；设计研制了能模拟疏浚工况的泥沙磨损试验机，总结提出了泥沙磨损试验换位测试法和疏浚工况泥沙磨损试验规范。

High speed rotation solid propellant rocket motor recording apparatus which we designed is going to resolve pressure testing of rocket motor in high speed rotation.

本文设计的高速旋转固体火箭发动机内置动态参数记录仪，着重解决火箭发动机在高速旋转状态下压力测试问题。

Helicopter Design Institute of China Aviation Industry deputy chief designer, AC313 helicopter designer Xu Chaoliang description, AC313 helicopter innovation embodied in the eight key technology breakthroughs: 30 minutes drive to meet the "dry run" security requirements ; fuel system and body structure to meet the anti-crash and lightning safety requirements; driver and passenger seat crashed through the anti-dynamic security testing; body structure, control systems and meet the bird impact rotor system security requirements; airborne equipment to meet the lightning and high strength radiation protection design requirements; cockpit layout to meet the crew emergency evacuation safety requirements; rotor and composite material structure to meet the fatigue assessment based on damage tolerance requirements; mechanical systems to meet the design requirements of high energy rotor burst protection.

中航工业直升机设计研究所副总设计师、AC313直升机总设计师徐朝梁介绍，AC313型直升机的自主创新具体体现在八项关键技术的突破上：传动系统满足30分钟的&干运转&安全性要求；燃油系统和机体结构满足抗坠毁及雷击安全性要求；驾驶员和乘员座椅通过抗坠毁动态安全测试；机体结构、操纵系统及旋翼系统满足鸟撞安全性要求；机载设备满足雷击和高强辐射场防护设计要求；座舱布局满足乘员应急撤离安全性要求；旋翼和复合材料结构满足基于损伤容限疲劳评定要求；机械系统满足高能转子破裂防护设计要求。

Flight Testing Accelerometers are used to measure the dynamic properties of aircraft wings and structure during their development.

班机测试－加速度计被用来在他们的发展期间测量飞机翅膀和结构的动态财产。

This paper introduces a kind of dynamic assignment method to decide the base classifier's weight. This method uses the current test data to calculate the degrees belong to each data subset that is misclassified and uses those degrees to assign weight to each base classifier.

介绍一种动态地对基分类器进行赋权重的方法，这种方法利用当前测试实例属于某个被错误分类数据子集的程度，并按照程度的大小给相应的基分类器赋适当的权重。

The General Dynamics Model 401 had been studied in models, mockups, and wind tunnel testing dozens of different configurations before the final configuration was chosen.

模型中，研究一般的动态模型 401 过 mockups 与风洞测试几十种不同的配置之前选择是最后的配置。

The Test System of Dynamic Energy Based on TDS1000/2000/3000B Series Oscilloscopes is introduced.

本文介绍了一个以 TDS1000/2000/3000B 系列示波器为基础构成的动态能量测试系统。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。