模具热处理工艺并行设计

针对目前模具热处理中存在的问题，提出模具热处理工艺并行设计的新思想，将热处理CAD／CAE集成于并行环境中，并建立了相关模型，在各模块之间以实体一关系模型串联，建立动态推理机制，可使各单元模型间实现联动效应．将温度、组织、应力及性能进行耦合是模具热处理未来发展的方向，但建立一个普适性的数学模型是必要的，通过灵活的管理与协调，可及时沟通信息，减少冲突与冗余过程。     

FIPA合同网协议的一种改进方案

针对FIPA合同网协议的一个典型扩展协议CNCP提出增设阈值的改进方案．因为无论Agent同时参与几项招标，最终它只能与其中某一个任务发起者建立正式合同关系，所以在确保Agent可在绝大多数情况下获得至少一个任务执行权的前提下，对参与招标的Agent一方设置合适的阈值，限定其同时处理的cfp的数量，可以为参与者一方减少大量不必要的计算消耗，降低任务被低效执行或最终得不到执行的风险，从而对系统整体性能的提升有所裨益．     

快速成形技术中轮廓环的分组算法及其应用

以平面内轮廓环的存在规则和相互关系为出发点，提出了一种简单实用的轮廓环的分组算法，通过本方法对平面的轮廓环进行分组，能够把一个平面分解成一系列简单的单连通区域，分组后的轮廓环不仅能够在进行其他运算时减少重复计算，而且可以在分区填充扫描线时减少分区数，从而减少实际扫描时的空跳．     

基于遗传算法的层合板结构的可靠性优化设计

采用遗传算法分析了存在初始缺陷的复合材料层合板的可靠性优化问题．优化设计时，以层合板结构的厚度最小为目标函数，以可靠度要求为约束条件．在可靠度分析中，取初始缺陷、强度参数、单元层的厚度为随机变量，采用一阶矩法和Tsai-Wu准则分析每个单元层的失效概率，系统失效概率的计算基于串联系统假定．通过比较遗传算法与序列二次规划法的计算结果，证实了遗传算法用于可靠性优化设计的有效性．     

带光学窗口的ICF低温冷冻靶用低温恒温器

研制了一种热梯度法制备核聚变低温冷冻靶用低温恒温器，通过上下热连接杆使试样盒冷却，配合电加热器以及控温系统，使样品盒的平均温度可以控制在10-40K试验温度范围内，并实现均匀温度梯度。     

基于UML的LCA中产品系统的建模研究

从产品系统本身的内在规律和产品全生命周期的观念研究了生命周期评价(LCA)的对象——产品系统及其特性，建立了产品系统概念模型；利用统一建模语言(UML)建立产品系统的结构模型、功能模型和信息模型，并描述产品系统的建模过程。     

Robot Calibration Using Active Vision-based Measurement

This paper presents an efficient robot calibration method with non-contact vision metrology. Using the coplanar pattern to calibrate camera made the active-vision-based end-effector pose measurement be a feasible and cost-effective way. Kinematic parameter errors were linearized and identified through two-step procedure, thus the singular and non-linear condition was overcome. These errors were then compensated using inverse model method. The whole calibration process is flexible, easy to implement and prevents the error propagation from the earlier stages to the later ones. Calibration was performed on MOTOMAN SV3 industrial robot. Experiment results show that the proposed method is easy to setup and with satisfactory accuracy.     

A Study on the Surface Structures of Viscose-based Activated Carbon Fiber by FT-IR Spectroscopy and XPS

Using viscose fiber (VF) as starting material and common steam as activating agent, formation of oxygen structures in activated carbon fiber is investigated. In the preparation of samples, VF was first heated at temperatures between 450℃ and 900℃ in N_2 artmosphere. Then, in a successive activation stage, the product carbonized at 600℃ was activated in steam at 450-900℃ for 30 min, and at 600℃ for 5-30 min. The other carbonization products were activated at 600 and 900℃ for 30 min respectively. The products activated at 900℃ were then activated at 450℃ for 30 min again. The starting materiah carbonized products and all activation products were examined by FT-IR spectroscopy and some products were examined by X-ray photoelectron spectroscope (XPS). And the yields of the carbonized and activated products were calculated. By analysing these spectra, the amount of oxygen-containing functional groups of the activated products attained under various activation time, various activation temperature and     

Switched Capacitor Network Analysis by Means of TCM

The totally coded method (TCM) reveals the same objective law, which governs the gain calculating for signal flow graph as Mason formula does. This algorithm is carried out merely in the domain of code operation. Based on pure code algorithm, it is more efficient because figure searching is no longer necessary. The code-series (CS), which are organized from node association table, have the holoinformation nature, so that both the content and the sign of each gain-term can be determined via the coded method. The principle of this method is obvious and it is suited for computer programming. The capability of the computeraided analysis for Switched Capacitor (SCN) can be enhanced.     

Meshing Theoretical Study and Simulation on Cylindrical Tri-sine Oscillating Tooth Gear Drive

The structure of cylindrical tri-sine oscillating tooth gear drive is presented. Based on the space meshing theory, equations of meshing and tooth profile are established and its meshing theory is studied. Using Pro/E, this system is modeled and simulated,which is compared with the above-established equations.