试验设计

For this, began model airscrew to sing sound the experiment research that eliminates a method, the sorts voice from surface of lamina of change model airscrew angle in the experiment designed a few kinds of disappear to call plan, finish sound measurement of a confusion of voices to experiment.

为此，开展了模型螺旋桨唱音消除方法的试验探究，试验中从改变模型螺旋桨叶片表面流态的角度设计了几种消唱方案，并完成噪声测量试验。

Through designing,counting and explaining the vacuum induced furnace,which used in the mixing test with protected glove-box, this paper expatiates design on the vacuum furnace structure specially used to investigate nuclear material's pyrometallurgy and chemistry performance,emphasizes on several essential point and design project of the mixing vacuum induced furnace relating with the moving parts of the glove-box. Thereby,It tries to offer a compact and applied reference case for the type of scientific research equipment designing and developing,and advise to improve certain deficiency in the actual application of induced furnace.

本文通过对配有防护手套箱的搅拌式试验用真空感应炉的设计、计算说明，阐述了用于核材料高温冶金及化学性能研究的专用真空感应炉的设计思路，重点叙述了搅拌式真空感应炉装置在手套箱内相关运动部件的几处设计要点及设计方案，从而试图为今后该类科研设备的设计研制，提供一个简洁实用的参考案例，同时对感应炉在实际应用中存在的不足也提出了改进意见。

It introduces a kind of novel loading test system, based on the operation principle of damper. this loading system is operated by the driving motor. it realizes the loading, in that the damper has a negative drive force that puts on the motor. Based on the ordinary electromagnetic damper, the thesis presents a novel hybrid excitation electromagnetic damper which has adjustable work characteristic, analyses the working principle and structural feature of the electromagnetic damper, deduces the formulas to calculate the eddy current density through the Electromagnetic theory, analyses the distribution of the eddy current in the cotyloid rotor, and also studies the method of calculating the damp torque, establishes the mathematical model of the electromagnetic damper, analyses the relationship between the electromagnetic damper structural parameter and damp torque, researches the engineering design and analysis method of the electromagnetic damper, provides theory foundation for the design and analysis of the electromagnetic damper, contrives a hybrid excitation electromagnetic damper that satisfies the target request, designs a set of compound excitation electromagnetic damping loading control system whose control core is AT89C51 monolithic integrated circuit, analyses the electric circuit part, and carries on the experimental test to this set of electric circuits. Finally it debugs this electromagnetic damping loading system, this system satisfies the target request proposed.

论文提出了一个全新的加载测试系统种类，该加载系统是在阻尼器工作原理基础上，利用电动机拖动阻尼器运转，从而阻尼器产生一个与运动方向相反的阻尼力矩，该力矩作用在电动机上实现对电动机加载测试；同时，论文在一般电磁阻尼器基础上提出了一种新型的可调式复合励磁电磁阻尼器结构，该种阻尼器的工作特性在一定范围内可进行调节；论文分析了电磁阻尼器的工作原理和结构特点，运用电磁场理论分析推导了电磁阻尼器的涡电流密度公式，分析了涡电流在转子杯内的分布图，并对阻尼力矩计算方法进行了研究，建立了电磁阻尼器的数学模型，分析了电磁阻尼器结构参数和阻尼力矩之间的关系，对电磁阻尼器的设计和分析方法进行了研究，为电磁阻尼器的工程设计建立了理论基础；设计了满足技术指标要求的复合励磁电磁阻尼器和一套以AT89C51单片机为控制核心的复合励磁电磁阻尼加载控制系统，对该控制系统硬件电路各部分进行了分析和设计，对软件进行了设计，并对控制电路进行了试验调试，该系统满足所提出的加载指标要求。

In this thesis, we focus on finding A-optimal and efficient Type-S designs in diallel cross experiments for comparing test lines with a control line under the model of completely randomized designs.

本论文主要研究在完全随机设计的模型下，找出对照与试验处理比较之diallel cross实验的A-最适以及有效率的设计，我们利用A-最适设计和A-效率设计的定义及电脑程式来找出A-最适以及有效率的Type-S 设计。

With the application of latest engineering science as well as effective theory, technology, material and method in other fields of civil engineering to the study on design and construction technology for large-scale aqueducts, while combining the typical project to develop the theory analysis, model experiment and site experiment study, some scientific, economic and reasonable methods in design and construction have been given in the paper.

将现代工程科学最新的并在土木工程其它领域中行之有效的理论、技术、材料、方法应用于大型渡槽设计和施工技术的研究过程之中，同时结合典型工程开展理论分析、模型试验和现场原型试验研究，对当前设计和施工中提出的理论和技术问题给出了科学、经济、合理的解决方法。

Randomized block design with single factor was adopted in the experiment.The energy level of group Ⅲ(with digestive energy of 12.98 MJ/kg) was designed according to the feeding standard energy requirement of Chinese meat-fat type of growth-finishing pigs,while the energy level of groupⅠ(with digestive energy of 14.22 MJ/kg) was designed according to feeding standard of NRC(1998) growth-finishing pigs.The energy level of group Ⅱ(with digestive energy of 13.60 MJ/kg) was designed between groupⅠ and Ⅲ.The energy levels of group Ⅳ and Ⅴ were designed under the energy level of group Ⅲ.The gradient of each adjacent energy level was 0.62 MJ/kg.

试验采用单因子随机分组设计，以中国肉脂型生长肥育猪饲养标准能量需要设计中能量水平(组Ⅲ，消化能12.98MJ/kg)，以NRC(1998)生长肥育猪饲养标准能量需要设计最高能量水平(组Ⅰ，消化能14.22 MJ/kg)，此两个能量水平间设计中高能量水平(组Ⅱ，消化能13.60MJ/kg)，在中能量水平下依次分别设计中低能量水平(组Ⅳ，消化能12.36MJ/kg)和最低能量水平(组Ⅴ，消化能11.74MJ/kg)，每个能量水平间的梯度为0.62MJ/kg。

This thesis is based on October 8, 2005 7.6-level earthquake reconstruction in the Pakistan disaster areas. Pakistan Earthquake Bureau designed the architectural standard as the background of the China-Pakistan cooperation project, and a sub-project under the standard is discussed in this thesis. Ordinary sintering brick and stone-dust mortar masonry are set as window walls of masonry walls construction, which is also the object in this thesis. Based on the quasi-static experiment, the masonry walls earthquake damage patterns and seismic behavior are studied, underlining Pakistan formulation of the unified national standards for architectural design with basic data.

本文以2005年10月8日巴基斯坦发生7.6级地震后灾区重建、巴国地震局制订建筑设计规范为背景，以烧结普通砖和石头粉砂浆砌筑的窗间墙砌体墙片为对象，以拟静力试验为基础，研究了砌体墙片抗震的破坏形态和抗震性能，为巴基斯坦制订全国统一的建筑设计规范标准提供了基本试验数据，同时也为砌体墙片抗震性能研究提供了一种有限元计算方法。

At last, fusing the modern information theory and technology, probability theory, random process theory and mathematics logic theory etc., synthetically applying various reliability information in each subsystem or unit of the long-range rocket gun system, this paper systematically evaluates the reliability of long-range rocket gun system, which provides quantitative reference for design finalization, production and application, and researching equipment reliability growth of the weapon system.

对远程火箭炮武器系统可靠性鉴定试验进行了理论分析与设计，对型号研制中有关可靠性试验结果进行了统计和综合研究；最后，融合现代信息理论与技术和概率论、随机过程理论、数学逻辑理论等数学方法，综合利用远程火箭炮各分系统或单体的各种可靠性信息，对远程火箭炮武器系统可靠性进行了系统评估，为远程火箭炮武器系统设计定型、生产与使用，开展装备的可靠性增长工作提供了定量依据。

At last, fusing the modern information theory and technology, probability theory, random process theory and mathematics logic theory etc., synthetically applying various reliability information in each subsystem or unit of the long-range rocket gun system, this paper systematically evaluates the reliability of long-range rocket gun system, which provides quantitative reference for design finalization, production and application, and researching equipment reliability growth ofthe weapon system.

对远程火箭炮武器系统可靠性鉴定试验进行了理论分析与设计，对型号研制中有关可靠性试验结果进行了统计和综合研究；最后，融合现代信息理论与技术和概率论、随机过程理论、数学逻辑理论等数学方法，综合利用远程火箭炮各分系统或单体的各种可靠性信息，对远程火箭炮武器系统可靠性进行了系统评估，为远程火箭炮武器系统设计定型、生产与使用，开展装备的可靠性增长工作提供了定量依据。

The experimental part design of rotationally molded truck fender was studied by combining theory analysis,experimental part design and experiment.

采用理论分析、试验制品设计与实验结合的研究方法，研究卡车翼子板旋转模塑成型试验制品设计问题。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐