静态试验机测控软件开发与应用

介绍了静态试验机测控软件的开发与实际应用，分析了试验机软件使用中需要解决的主要问题，阐明了开发的软件的功能和特点，总结了所开发的试验机测控软件在科研应用中取得的良好效果。

静态电液伺服试验机测控软件控制命令系统的探讨

随着静态电液伺服试验机测控技术的发展,试验机测控软件控制命令系统应运而生,其命令系统指各种闭环控制命令及开环控制命令等命令的集合。论文主要对静态电液伺服试验机测控软件的控制命令系统结构功能及其底层闭环命令的PID算法、调试方式展开探讨。

基于ADS1256的静态试验数据采集板卡开发

ADS1256是TI公司最新推出的微功耗、高精度、超低噪声的24位A/D转换器。本文主要介绍ADS1256在基于ISA总线的静态试验机数据采集卡中的典型应用,其主要内容包括A/D转换数据采集板卡的结构组成、采样数据的串并行转换、板卡的抗干扰措施。

Crashworthiness design and experimental validation of a novel collision post structure for subway cab cars

This paper proposes a novel collision post structure designed to improve the crashworthiness of subway cab cars.The structure provides two innovative features:1)a simpler connection between the post and the car roof,which gives a more reasonable load transfer path to reduce the stress concentration at the joint;and 2)a stiffness induction design that provides an ideal deformation model to protect the safe space of the cab cars.The novel collision post structure was evaluated with finite element analysis,and a prototype cab car was mechanically tested.The results demonstrate that the deformation response was stable and agreed well with the expected ideal mode.The maximum load was 874.17 kN and the responses remained well above the elastic design load of 334 kN as required by the design specification.In addition,there was no significant tearing failure during the whole test process.Therefore,the novel collision post structure proposed has met the requirements specified in new standard to improve the crashworthiness of subway cab cars.Finally,the energy absorption efficiency and light weight design highlights were also summarized and discussed.

一种水平速度校准方法及装置的研究

鞋类静态防滑性能试验机是鞋类穿着安全性能的重要测试装置,主要用于对鞋类底部静态防滑性能的测试。该性能测试需要模拟人体穿鞋状态的实际情况,测试时,需要确保鞋子处于一定的水平拉动速度。现有的速度测量装置的测量方式难以实现速度测量装置与试验机的水平拉动速度同步测量,且人为因素对测量过程影响较大,从而导致测量不准。因此,本文提出了一种鞋类防滑性能试验机的水平拉动速度校准方法及装置,以解决上述问题。