复杂炼油塔模拟的改进联立方程内外层算法

在内外层算法的基础上，采用联立方程思想将主塔、侧线汽提塔视为一个整体进行建模，并针对复杂炼油塔的特点对算法提出了改进。首先，由于传统内外层法简化的K值模型对组成的变化不敏感，在处理带有石油的体系时，容易出现迭代次数较多，甚至部分塔板温度更新异常的问题，因此采用了汽相分数加和式推导了简化的K值模型加权因子。其次，借鉴流量加和法思想，规定侧线汽提塔的塔底产品流量作为设计变量，增强了算法收敛的稳定性。为验证改进后算法的有效性，采用不同的算法对实际的常压塔进行了模拟，结果显示改进后的算法适合应用于复杂炼油塔的模拟计算。     

原油蒸馏塔的内外不可行路径优化方法

针对原油蒸馏塔的特点 ,将蒸馏塔模拟的内外法与优化的不可行路径法结合 ,提出原油蒸馏塔的内外不可行路径法 .对某原油蒸馏塔的优化计算表明该方法能提高计算速度 ,并取得较好的优化效果 .     

汽车制动泵主缸补偿孔反冲法加工研究

针对传统汽车液压制动泵主缸补偿孔加工工艺中存在孔口锐边和毛刺,导致液压制动系统使用寿命短、稳定性差的问题,提出一种反冲法加工工艺,开发了补偿孔反冲法加工专用数控设备和刀具.实验和应用结果表明,所提出的反冲法加工工艺能有效消除补偿孔的孔口锐边和毛刺,极大地提高了生产效率和制动泵整机的使用寿命与性能,降低了汽车维护成本.     

基于八叉树的六面体网格自动生成算法

有限元网格生成是工程科学与计算科学的交叉研究领域,有限元分析的发展方向之一是三维六面体网格的生成.对于这个问题,许多研究人员已经提出很多方法.然而,可靠的自动六面体网格生成软件目前尚未开发.在介绍栅格法的基础上提出自动六面体网格剖分算法.基于八叉树算法和由内向外栅格法的这种剖分算法分为4步,分别是实体模型的建立和加密点的生成,利用八叉树算法生成原始六面体网格,利用奇偶法删除不需要的单元从而生成核心六面体网格,六面体网格拟合到实体模型表面.实验表明,该算法可以应用到各种工程问题的网格生成.     

两种内压式超滤膜组件在反渗透预处理中的应用

选取两种内压式中空纤维超滤膜组件,从膜材质、运行参数和出水水质等方面对这两种组件在海水淡化反渗透预处理中的应用进行比较。结果表明:2#膜组件跨膜压差和膜通量的稳定性较1#组件好,两种膜组件出水水质比较接近,但2#膜出水水质稳定性较1#膜好。在进水浊度小于20NTU时,2#膜组件更适合应用于反渗透的预处理工艺。     

Making the most out of the innovation of meaning: The importance of inclusion for creativity in inside-out envisioning

Innovation of meaning (IoM) is one of the streams that has attracted attention in design thinking research. Inside-out envisioning aims to assist non-designer employees practice IoM in a similar manner to how visionary executives and designers perform. The process starts with exposing their intrinsic visions to innovate the dominant social or organizational meanings. This makes the employees' creativity that comes from intrinsic goals and values an important driving force of inside-out envisioning. Thus, it is crucial to foster an organizational culture that encourages employees to engage in inside-out envisioning and enhance their creativity. This study explores whether inclusion, as an organizational culture, is an antecedent of creativity in inside-out envisioning. Inclusion refers to a state in which an individual's uniqueness is valued by other group members and externalized to improve group performance. Based on data from a survey conducted with 1104 Japanese employees, this study reveals that inclusion significantly impacts creativity in inside-out envisioning. A multigroup analysis demonstrates differences in the effects of the mediating variables of this relationship based on the successful experience of inside-out envisioning. This study concludes that it is important for design thinking researchers to study inclusion more deeply as a way to implement inside-out envisioning.