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一、价值工程的基本原理 1.关于价值的概念 价值工程(Value Engineering)中的价值是指某种产品(或劳务,工程)的功能与成本(或费用)之相 相似文献
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价值工程与产品造型设计 总被引:3,自引:0,他引:3
讨论了价值工程理论在产品造型设计中的运用,通过围绕价值,功能,成本三者之间的关系。论述了产品造型设计中通过价值分析对完善功能设计所进行的不断提出问题,分析问题,解决问题的方法,得以实现产品的最高价值。 相似文献
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讨论了价值工程理论在产品造型设计中的运用,通过围绕价值、功能、成本三者之间的关系,论述了产品造型设计中通过价值分析对完善功能设计所进行的不断提出问题、分析问题、解决问题的方法,得以实现产品的最高价值。 相似文献
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用仿真工程原理方法进行功能成本分析;应用价值工程活动的对象选择原则和方法,确定具体的改进对象,并提出新的改进方案。实现了用户的必要功能,提高了产品的价值。最后,根据价值工程实践,提出了循环应用价值工程的观点。 相似文献
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价值工程中对象选择的模糊聚类分析 总被引:3,自引:0,他引:3
运用模糊数学和价值工程的方法,根据构成产品零部件的六种价值特征值,本文提出进行产品改造的价值工程对象选择的综合模糊聚类分析方法,并将此法用于实际产品改造的对象选择。 相似文献
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为了求得机械产品功能成本的最佳配合,就要重视产品的价值设计.文中详细讨论了价值设计的目的,功能分析,产品成本和价值评价,给出了价值优化的模型及例子. 相似文献
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利用价值工程的原理,对如何提高起重机产品的价值进行了分析。提高起重机产品的价值,主要通过在保证起重机产品性能的基础上降低起重机产品的寿命周期成本,即在保证起重机原设计功能的基础上,通过降低设计、制造、安装、环境和使用等成本来实现。起重机生产企业应针对不同的行业环境和自身的性质,选择适合自身特定情况的模式和方法来实施价值工程。 相似文献
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针对阀门工程数据的特点,提出了阀门产品工程数据库的体系结构.以及建立工程数据库的阀门产品工程数据组织模式。并通过这一方法建立了自贡高阀公司“VCADS”系统中的工程数据库管理系统。 相似文献
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Xuehong Du Jianxin Jiao Mitchell M. Tseng 《The International Journal of Advanced Manufacturing Technology》2006,31(3-4):396-406
Product customization has been recognized as an effective means to meet individual customers’ needs. It is imperative to assist customers in making informed decisions with regard to company capabilities and the added value of customization. Customer value analysis not only empowers customers to express their preferences for various product features explicitly, but it also facilitates the company’s justification of different customization solutions. This paper analyzes diverse elements of product quality in relation to customization and introduces utility functions to quantify the customer-perceived value in terms of the quality utility per unit cost and the ratio of marginal utility to marginal cost. Adaptive conjoint analysis is employed to capture the utility function of product quality with respect to many specific product features. With quantitative analysis of quality utility, customers can be actively involved in the product customization process. Product marketing and design engineering are coordinated through the product family architecture, enabling the convergence of customers’ needs to product offerings of the company. Also reported is a case study of customizing power supply design for a telecommunications system. 相似文献
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防护密闭门在战时可将高速公路山体段隧道空间隔断,形成特殊专用的人防工程,具有重要的战备效益和经济效益。由于门扇尺寸大,质量重,直接手动关闭费时费力。本文针对在关闭门扇过程中存在的门扇重、牵引力大等问题进行了探讨,提出了解决这类问题的方案,并对已经应用到实际工程中的复位机构方案进行了分析,在保证防护密闭门战备效果的同时,简化了结构,减少了平战转化的工作量,并在此基础上研制了防护密闭隔断装置专利产品。 相似文献
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应用价值工程是降低产品成本的有效途径 总被引:1,自引:0,他引:1
李斌云 《机械工程与自动化》2004,(1):6-8
叙述了价值工程在节约成本方面的显著成就,指出为什么价值工程会大幅度降低产品成本,以及过去常用的成本分析方法与价值工程在降低成本方面的区别。 相似文献
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Knight RL Wilcox HE Korossis SA Fisher J Ingham E 《Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine》2008,222(1):129-143
Tissue-engineering approaches to cardiac valve replacement have made considerable advances over recent years and it is likely that this application will realize clinical success in the near future. Research in this area has been driven by the inadequacy of the currently available cardiac valve prostheses for younger patients who require multiple reoperations as they grow and develop. Tissue engineering has the potential to provide a valve capable of the same growth, repair, and regeneration as a natural valve and could improve outcomes for patients of all ages. Owing to the function and physical environment of the cardiac valve, the development of tissue-engineered replacements is unusual in that the biomechanical properties of the construct must dominate the biological properties in order for the valve to be functional at the time of implantation. As a result of this, conventional tissue-engineering scaffolds based on biodegradable polymers or collagen may not at present be suitable in this situation because of their initial limited strength. Research into the use of acellular xenogeneic and allogeneic matrices for tissue-engineered heart valves has consequently become extremely popular since the biomechanical properties of the valve can potentially be preserved with an optimal decellularization technique that removes the cells without damaging the matrix. A number of acellular scaffolds have already been tested clinically both unseeded and preseeded with cells and these have met with variable results. This article reviews the concepts involved and the advantages and disadvantages of the different approaches to tissue engineering a living cardiac valve. 相似文献
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全文阐述了设计新型系列气动单向阀的全过程。气动单向阀是一种结构较简单的气动元件,在行业内往往引不起太多重视。本文作者在设计中,对如何达到开启压力、关闭压差、有效截面积S值、泄漏量等性能指标,进行了详细的设计分析和精确计算。同时在优化产品结构,提高加工工艺性、装配工艺性等方面,积累了许多有益经验。优化系列设计后,性能提高,成本降低,市场销售额增加,企业取得较好的经济效益。 相似文献
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该文利用Gambit和Fluent对伺服阀衔铁组件的啸叫问题进行了CFD分析,模拟计算了产品内部油路结构的流固耦合,发现在伺服阀衔铁组件啸叫的时候,流体在产品内部的产生了一明显的狭长负压区,改变产品内部结构再次进行CFD的模拟计算,负压区消失,对该结构的产品进行实际的通压通液测试,伺服阀啸叫的问题得到解决。 相似文献