A supportive architecture for CFD-based design optimisation

Multi-disciplinary design optimisation (MDO) is one of critical methodologies to the implementation of enterprise systems (ES). MDO requiring the analysis of fluid dynamics raises a special challenge due to its extremely intensive computation. The rapid development of computational fluid dynamic (CFD) technique has caused a rise of its applications in various fields. Especially for the exterior designs of vehicles, CFD has become one of the three main design tools comparable to analytical approaches and wind tunnel experiments. CFD-based design optimisation is an effective way to achieve the desired performance under the given constraints. However, due to the complexity of CFD, integrating with CFD analysis in an intelligent optimisation algorithm is not straightforward. It is a challenge to solve a CFD-based design problem, which is usually with high dimensions, and multiple objectives and constraints. It is desirable to have an integrated architecture for CFD-based design optimisation. However, our review on existing works has found that very few researchers have studied on the assistive tools to facilitate CFD-based design optimisation. In the paper, a multi-layer architecture and a general procedure are proposed to integrate different CFD toolsets with intelligent optimisation algorithms, parallel computing technique and other techniques for efficient computation. In the proposed architecture, the integration is performed either at the code level or data level to fully utilise the capabilities of different assistive tools. Two intelligent algorithms are developed and embedded with parallel computing. These algorithms, together with the supportive architecture, lay a solid foundation for various applications of CFD-based design optimisation. To illustrate the effectiveness of the proposed architecture and algorithms, the case studies on aerodynamic shape design of a hypersonic cruising vehicle are provided, and the result has shown that the proposed architecture and developed algorithms have performed successfully and efficiently in dealing with the design optimisation with over 200 design variables.     

Disentangling the Role of Management Control Systems for Product and Process Innovation in Different Contexts

ABSTRACT

This paper studies the relationship between the use of management control systems and different types of innovation (product and process), taking into account innovation contexts (high-tech versus low-tech sectors). We develop and test our hypotheses based on a large sample of Spanish manufacturing firms and find that input controls have a positive association only with process innovation in both innovation contexts. Behavior controls have similar effects on both types of innovation outcomes for high-tech firms, while they have stronger positive associations with process than with product innovation for low-tech firms. Output controls are equally relevant for product and process innovation in both contexts.     

基于创新过程的科技创新政策体系研究

针对科技创新政策体系构建存在的理论基础薄弱、涵盖面不全等问题,从科技创新的主要特点及科技创新过程中存在的问题出发,基于政府作用角度构建了科技创新政策体系框架,并对比分析了中美两国近期实施的供给面、需求面和环境面科技创新政策,提出了若干对策建议。     

工艺创新会抑制就业吗？

以中国制造行业159家上市公司2001-2012年的面板数据为样本,从专利数据中分离出工艺专利,实证研究中国制造企业工艺创新对就业的影响。结果显示,工艺创新在整体上具有积极的就业效应,对技术人员数量的促进作用高于对生产人员的促进作用,从而证实了工艺创新有助于扩大企业需求,促进就业。     

国家创新型城市对属地创新能力影响效应评估——政策动态过程与政企互动视角

选取2003-2016年城市数据样本,基于国家创新型城市分批次确立的特性,采用渐进双重差分模型、固定效应双重差分模型和处理效用双重差分模型,研究国家创新型城市对属地创新能力的整体效应、长期动态效应和批次效应。结合城市创新微观主体构成特性,分析属地国家创新型企业政策及企业类型异质性对属地创新能力的影响。结果显示:国家创新城市对属地创新能力提升在长短期均起到正向促进作用,且越早确立的城市对属地创新能力提升的作用效果越显著;国家创新型企业政策对城市创新能力提升起到正向调节作用,且企业集团作用大于上市公司和一般企业。最后,提出创新型城市建设相关政策建议。     

一体化管理体系实施策划的过程及其主要内容

当前,企业正迫切需要建立一个综合性的管理体系,以期在满足各个标准的基础上实现组织整体的发展目标。本文对一体化管理体系(IMS)的实施策划过程及其主要内容进行探讨,旨在为企业建立一体化的管理体系提供参考。     

基于改进的DEA/AHP模型的人工成本投入产出效率评价

通过采用0.1-0.9标度这种更为简便实用的判断尺度,建立了具有完全一致性的互补判断矩阵,妥善解决了AHP判断矩阵的一致性问题,改进了DEA/AHP模型。并基于DEA模型和改进的DEAHP模型分别对盐城市22个行业2009年的人工成本投入产出进行效率评价分析。研究结果显示,基于改进的DEA/AHP模型的评价结果更加具有可区分性,具有更高的解析能力。     

基于知识价值链的知识管理绩效评价

本文在系统研究价值理论的基础上建立了知识价值链模型,归纳出知识价值链的内涵,为知识管理绩效评价寻找价值来源,分析出知识价值链与知识管理绩效评价之间的关系,从顾客、流程、学习和财务四个方面构建了知识管理绩效评价指标体系,运用模糊层次方法对知识管理绩效进行评价,以期为知识管理绩效评价提供可量化的科学评价方法。     

汽车市场订单管理流程实施

论文探讨了汽车厂商订单管理流程的具体实施,分析了订单管理对区域市场经营模式和经销商能力提升的促进。随后,论文详细研究了订单管理流程中最为重要的年采购目标管理流程、月采购计划流程和周采购计划流程。     

基于供应链的企业质量检验过程经济分析

本文首先利用供应链思想建立了企业质量检验问题的分析框架,随后在分析检验费用和损失费用数学模型的基础上,建立了基于供应链的多过程质量检验点设置问题的优化分析模型,并给出了相应的计算机处理流程图。