The main contributions of the dissertation are as follows . in chapter 2 , the dissertation demonstrates the design of an airfoil model with a control surface driven by an ultrasonic motor as the actuator first , and then presents the experimental modeling of the actuator 论文的主要工作与学术贡献如下: ( 1 )设计了以超声电机为作动器驱动控制面的二维翼段模型,并建立了作动器的传递函数模型。
Abstract : in this paper vehicle - operating characteristics at a roundabout are discussed , and the vehicle noise composition is analysed . then th e calculating formula of vehicle noise at a roundabout is deduced , which is based on the vehicle noise experimental model at the road sections 文摘:讨论了环形交叉口车辆运行特性，对车辆噪声的各个组成部分进行了分析，推导出基于路段车辆噪声预测实验模型的环形交叉口车辆噪声的经验计算公式
The main discharge types in insulation of electrical transformers were analysed , 7 kinds of experimental models simulating discharges in electrical transformers and 3 kinds of models simulating interfering discharges in air were designed and model experiments under some circumstances were performed 分析了变压器绝缘的主要放电形式，设计了模拟变压器放电的7种试验模型和3种模拟空气中放电干扰的模型，进行了不同情况下模型的放电试验。
This paper introduces the initiation principles and c alculates the burst current of bridge foils that is measured by rogofiski coil , a nd the results are consistent with those computed initiation model . this s hows the validity of measurement results and the accuracy of experimental models 介绍了桥箔起爆机理，计算了爆发电流，采用罗果夫斯基线圈对桥箔的爆发电流进行测量，其结果与计算值符合得很好，说明了桥箔起爆模型的准确性和测量结果的有效性。
Structural theory / experimental modeling and related analysis , dynamic reduction , structure finite element model updating based on the frequency response function , quadric exploit based on patran are studied in this dissertation about the key point of structure finite element model updating 本文围绕结构有限元模型修正这一主题,对结构理论/试验建模、理论/试验模型相关分析、动力缩聚、基于频响函数的结构有限元模型修正、基于patran的二次开发等领域展开研究。
The principles and methods of nonlinear programming are applied in this paper to find a kind of nonlinear feedback analysis method of seepage in fractured rock mass . on the basic of theoretical analysis and test performed with the experimental model , a series of significant conclusions concerning the feasibility and calculating efficiency of the method are summarized , meanwhile , a kind of improved arithmetic method is worked out 利用实测渗流场资料反求岩体渗流参数是岩体渗流研究的一个方向，但目前在裂隙岩体渗流参数反馈问题方面进展不大，本文把非线性规划理论引入裂隙岩体渗流反馈分析计算中来，通过理论分析和实验验证，寻求到一种有效的适合裂隙岩体渗流运动特点的反馈分析方法，并获得了应用渗流反馈方法的几点指导性的结论。
With a numerical code and a computing software , the aerodynamics characteristics of the shapes are discussed . the feature of the waverider configurations is proved by this work and the analysis of the off - design aerodynamics characteristics is also emphasized in this study . finally , an experimental model is developed for a wind tunnel experiment to demonstrating the numerical analysis 采用了软件和数值程序相结合的方式对初步设计的乘波构形流场进行数值分析，验证了乘波外形的流场和气动特性，讨论了乘波构形气动特性随外形设计参数的变化，对外形在非设计状态下的气动特性进行了重点的讨论，得到了气动特性变化的一些基本规律。
The experimental model is a rectangular section of 15 . 2 187mm ~ 2 , which is composed of two aluminum plates . the angles between the internal netted rib turbulators and the flow direction are 45 ? for the one plate and 60 ? for the other , or both 45 ? for two plates . in the experiment , the re numbers changes from 0 . 4 10 ~ 4 1 . 5 10 ~ 5 , rib width - to - pitch are 0 . 25 , 0 . 3 and 0 . 5 , rib width - to - height are 0 . 25 , 0 . 3 and 0 . 5 , the rib height - to - hydraulic diameter ratio is 0 . 246 主要研究了在通道进口截面积(即无肋处的截面积) a为15 . 2 187mm ~ 2 、肋高与通道当量直径之比e / de等于0 . 246 ，实验雷诺数范围在0 . 4 10 ~ 4 1 . 5 10 ~ 5之间的情况下，雷诺数re 、肋向角a 、肋宽与肋高之比t / e和肋宽与肋间距之比t / p等参数对通道强化传热与流动阻力特性的影响。
In this paper , we reviewed the history of the studies about the mechanical properties on arterial walls , and introduced the experimental studies about the arterial walls , which included the structure of the arterial wall , experimental model , theoretical models of thin and thick wall cylinders , method of stress and strain analysis and the difference between dynamic and static experiments , and discussed the fields of tissue engineering , remodeling of the artery and the relation between stress and growth 本文首先对动脉壁力学性质研究的历史做了回顾，其中着重介绍了动脉壁力学性质的实验研究。包括动脉壁的结构、实验模型的研究、薄壁筒和厚壁筒理论模型的研究、应力和应变分析方法以及动态和静态实验的区别，并对当前研究的热点问题，如组织工程、动脉重建和应力与生长的关系作了探讨。
