In this paper , a 9 - point loading method been used in the new balance calibration system to load six component loads on a balance . at same time , the automatic loads method and the design of loading device are also important 同时,在具有全自动加载功能的校准系统研制中,自动加载方式选取和加载机构的设计也是其中的关键技术难点之一。
The test load can be put on samples by the way of mechanical , electric or hydraulic equipment . the hydraulic equipment has been widely used in practice because of the stability and low noise features 静力试验可以通过机械、电动和液压等加载方式完成，其中液压加载凭借良好的平稳性和运行中的低噪声，在工程试验中得到极为广泛的应用。
As the computer controls the throttle valve , this method gets rid of the hand randomization , shortens the testing time , lightens the work of lab assistants and makes a progress towards the automatic test 这种加载方式通过微机控制比例电磁铁发送信号，克服了手动加载的随机干扰，缩短了实验时间，减轻了实验人员负担，向液压测试的全自动化迈出可喜的一步。
In addition , the expansion mode , communication interface with other systems , program boot mode and debug interface are introduced , and several standard operating modes and specifications of the system are also presented in this part 另外还介绍了系统的扩展方式、对外的通信接口、程序加载方式以及调试接口等，并给出了系统的几种典型工作方式和性能指标。
This demonstrates the validity and accuracy of the proposed method . meanwhile the effects of loading modes and steel ratio on the behavior of the cfst arches are numerically analyzed and discussed 同时，针对计算结果进行了分析，得出了钢管混凝土拱桥受力变形的一些特性，并提出对设计和研究有益的建议，在此基础上还分析了加载方式和含钢率对钢管混凝土拱的影响。
And a wide survey about related theory of automatic control and modern test techniques are presented in this paper . 2 . main components of system - actuator , servo valve and transducer , and mathematical mode ) of system are analyzed in detail 详细研究了主要部件：阀控液压缸、电液伺服阀和力传感器的工作原理和传递特性，建立力了控制和位移控制两种静力试验加载方式的整体系统数学模型； 3
Because there are many factors affecting the properties of soft soil , the paper considers several following main factors : stress history , change of additional stress , lateral deformation and loading style and speed . the 3 - d settlement theory is established 因此笔者认为本文在计算软土沉降时，考虑软土应力历史、附加应力的变化、侧向变形及加载方式与加载速率等几个主要因素是有一定的可行性的。
In formerly static strength tests , no attention was paid to the process of test load . according to their experiences , experimenters adjusted pressure in actuator only by hand to control the test load value and the load value was read from instruments 早期的静力试验对加载过程没有严格的要求，所以当时的液压加载方式由试验人员直接调整供油压力，改变液压缸内的油压，控制活塞杆输出的集中力载荷。
In chapter three , basic principle of the esspi and its imaging method are introduced in detail , the paper also analyzes the factors that affect the precision of esspi measurement . at the end of this chapter , the paper introduces the application of esspi in contactless measurement 最后对剪切散斑在无损检测中的应用以及在无损检测中运用的加载方式进行了分析，为下一步用剪切散斑无损检测的应用作了准备。
Therefore , in this thethis , an improved multi - mode pushover analysis , which combines the advantage of the modal pushover analysis ( mpa ) and the adaptive pushover analysis ( apa ) , has been proposed to take the higher mode effect and history of load into account 论文将模态推覆分析方法与用自适应的加载方式相结合,提出了一种改进的多模态静力推覆分析方法。该方法同时考虑了高阶振型以及加载时程性的影响。
