共查询到19条相似文献,搜索用时 296 毫秒
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广义模块化设计原理及方法 总被引:27,自引:0,他引:27
针对传统模块化设计的局限性,将参数化设计和变量化分析技术引入模块化设计,提出广义模块化设计方法,从而拓展模块化设计的应用领域,使其既可适用于系列分级特性比较明显的产品及其产品族的开发,又可满足工况复杂、大载荷,需要进行结构强度、刚度设计,系列分级特性不明显的机械产品的开发设计.对广义模块化设计原理、广义产品平台、基于广义模块组合和基于广义产品平台的产品族规划方法进行系统阐述.最后以液压机广义模块化设计和产品族规划为例,详细说明广义模块化设计的基本原理和方法. 相似文献
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基于柔性模块的液压机快速设计系统研究与开发 总被引:4,自引:0,他引:4
液压机实现快速设计对我国机械产品的发展有着重要的意义.本文提出了基于柔性模块的液压机快速设计理论,论述了柔性模块化设计的概念,构建了液压机快速设计框架体系,并在三维CAD平台SolidWorks环境中利用其二次开发工具实现了产品的参数化设计,同时运用CAE分析工具进行液压机的变量化设计,最后实现了基于柔性模块的液压机快速设计系统. 相似文献
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基于广义模块化设计的产品重构技术研究 总被引:2,自引:0,他引:2
从广义模块化设计及其相关概念出发,讨论了广义模块化设计的适用范围,并从可重构产品族的规划、模型创建、模块扩展及其组合拼装等方面详细介绍了基于广义模块化设计的产品重构技术,并以组合框架式液压机产品族设计为例,详细说明了广义模块化的产品重构原理和方法. 相似文献
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本文在利用广义模块化设计的一般方法对粗纱机进行产品族的规划与模块划分的基础上,重点研究了计算机辅助粗纱机模块化设计系统的整体功能建模,系统信息流程,软件模块设计与系统信息集成.并给出了该系统的软件实现框架与具体实现方法. 相似文献
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集成化产品装配设计与模糊评价方法研究 总被引:1,自引:0,他引:1
研究了集成化产品装配设计与模糊价方法。基于用户定义的特征,进行产品特征造型和产品装配设计,建立了产品实例库;基于产品实例进行参数化结构设计,自动生成产品的三维装配图;从CAD系统中,对产品装配体进行了自动产品装配特征识别;基于所建立的产品装配模型自动产生品装配数据的中性文件。 相似文献
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Meiwei Jia Guofu Ding Shengfeng Qin Rong Li Yong He 《The International Journal of Advanced Manufacturing Technology》2013,66(9-12):2107-2122
Many complex mechanical products can be considered as multibody systems; 3D computer-aided design (CAD), multibody dynamics, finite element-based strength and fatigue analyses, optimization, and other CAE tools, are often used to develop this kind of product. But design is difficult and challenging because of information inconsistence among different engineering domains, and isolated information model islands exist. Lots of research are attracted to design and analysis information integration, but attentions are mainly focused on integration of CAD–finite element analysis (FEA), supporting the bottom-up design principle, while multibody dynamics analysis for analyzing global performance of a mechanical system is rarely considered, which follows the top-down design principle. In this paper, a novel multilevel system representation modeling framework for supporting both bottom-up and top-down or mixed design methods is proposed. It can integrate the product design CAD models with multibody dynamics, finite element-based strength and fatigue analyses, realizing a CAD–dynamic–FEA–fatigue analysis integration. It can also support data exchange and transfer in multidomain analyses. The framework is illustrated with a case study of a load haul dump (LHD) design using currently available software tools. Furthermore, a design case study of the working unit of the LHD is given to highlight the applicability of the modeling framework for multibody mechanical systems. It has been demonstrated that the framework can describe information exchanging and integration among CAD, FEA-based strength and fatigue analyses, and multibody dynamics analysis during a multibody mechanical product design process. 相似文献
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References: 《机械工程学报(英文版)》2007,20(1):96-99
Reconfigurable products and manufacturing systems have enabled manufacturers to provide "cost effective" variety to the market. In spite of these new technologies, the expense of manufacturing makes it infeasible to supply all the possible variants to the market for some industries. Therefore, the determination of the right number of product variants to offer in the product portfolios becomes an important consideration. The product portfolio planning problem had been independently well studied from marketing and engineering perspectives. However, advantages can be gained from using a concurrent marketing and engineering approach. Concurrent product development strategies specifically for reconfigurable products and manufacturing systems can allow manufacturers to select best product portfolios from marketing, product design and manufacturing perspectives. A methodology for the concurrent design of a product portfolio and assembly system is presented. The objective of the concurrent product portfolio planning and assembly system design problem is to obtain the product variants that will make up the product portfolio such that oversupply of optional modules is minimized and the assembly line efficiency is maximized. Explicit design of the assembly system is obtained during the solution of the problem. It is assumed that the demand for optional modules and the assembly times for these modules are known a priori. A genetic algorithm is used in the solution of the problem. The basic premise of this methodology is that the selected product portfolio has a significant impact on the solution of the assembly line balancing problem. An example is used to validate this hypothesis. The example is then further developed to demonstrate how the methodology can be used to obtain the optimal product portfolio. This approach is intended for use by manufacturers during the early design stages of product family design. 相似文献
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分析计算agent支持的以装配结构为核心的机械产品设计模式的研究 总被引:1,自引:0,他引:1
为了支持机械产品自上而下、不断细化的设计过程,本文提出了一种以产品的装配结构为核心,由多个分析计算agent组成的,支持异构分布环境的协同工作设计模式。产品的装配模型描述零部件的层次关系、位置关系等几何信息和装配语义信息、设计参数及其约束关系等工程语义信息,能够向各分析计算agent提供必要的信息,以实现机械产品几何造型系统、装配建模系统、分析计算系统之间的有效集成。基于集成框架的分析计算agent能够完成异构分布环境下协同设计过程中的逻辑推理、判断、分析计算等复杂工作 相似文献
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基于粗糙集神经网络的产品族配置性能预测方法 总被引:1,自引:0,他引:1
模块化产品族设计是面向大规模定制设计的支撑技术.为了加快对动态变化的个性化需求的响应速度,提出基于粗糙集神经网络的产品族配置性能预测新方法,以通过产品族中典型产品变型的历史数据挖掘来预测新产品变型的基本性能,给出产品族配置性能预测定义和目标;提出层次化的产品族表示模型,并用数学方法对配置过程和配置对象进行规范描述;给出基于粗糙集神经网络的配置性能综合预测框架和基本步骤.该方法能够复用所挖掘的配置知识和配置规则,减少试验环节工作量,且能将性能预测值作为衡量是否满足最终客户需求的基本依据,以评价配置的合理性.最后以某模块化新型号冰箱产品族为实例进行验证. 相似文献
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基于Internet的CAD/CAPP/CAM/ERP应用系统信息集成有助于跨部门、跨企业、跨行业和跨区域的协同设计、制造以及动态联盟 ,是产品信息一体化的核心技术。通过对目前分布式系统集成方案的比较 ,在对各子系统之间集成关系和方法分析的基础上 ,设计了基于XML和Web服务技术的新型的CAD/CAPP/CAM/ERP应用系统信息集成构架。探讨了系统实现中应解决的XML实体构架、Web服务的实现、系统的集成接口等关键技术 ,同时将JAXM技术和SOAP技术紧密结合来优化对XML信息的传递、交换。该集成方案以灵活的数据模式、可重用的服务模块、易扩展的数据接口有效地、可靠地解决产品在网络中设计、生产、制造和销售过程中信息的交换和共享 ,实现产品交易的信息化、智能化、集成化 ,以更快的速度、更高的准确度和更出色的客户服务满足客户个性化的需求 相似文献