设计验证和生产确认福特

1、Welcome,Design Verification and Production Validation 设计验证和生产确认,Ford Technical Education Program福特技术培训项目,Course Structure课程结构,Introduction to DV in this case, FEAD belt tension. 测量系统分析是验证用来测量过程的设备性能，在这里即指FEAD皮带张紧力 Process Capability is an assessment of the ability of the manufacturing process to pro

2、duce product to its engineering specification. 过程能力是生产产品符合其工程技术规范的产品的制造过程能力的评估,FEAD Belt TensioningFEAD皮带张力调整,In adjusting the belt to the correct tension, a tensioning unit is placed on the FEAD. 要调整皮带至正确的张紧力时，把张紧装置放在FEAD上 For the FEAD shown here, tensioning is accomplished by adjusting the positio

3、n of an idler pulley using a jackscrew. 针对这里所示的FEAD，使用螺旋起重机通过调整惰轮的位置来完成张力调整,FEAD Tensioning OperationFEAD张力调整操作,The team reviewed historical information on tensioning operations similar to the operation they were going to validate. 小组审核了与他们即将确认的操作相类似的张紧操作的历史信息 They were particularly interested in a

4、G8D study that had been conducted on a problem encountered during ongoing production. 他们尤其对现生产中所遇问题采取的G8D研究感兴趣,Problem in Production生产中的问题,The problem with the FEAD tensioning operation occurred despite the fact that Process Capability had been achieved as a part of Production Validation after the m

5、achine had been installed. 尽管作为生产确认的一部分，过程能力已经达到，在安装机器后FEAD张力调整操作的问题还是出现了,Representative Validation Method典型确认方法,On reviewing the belt tensioning problem the team recognized the need to review the way in which Process Capability of the FEAD belt tension was assessed. 评审皮带张力调整问题时，小组意识到需要审核FEAD皮带张紧力过程

6、能力的评估方式 The team agreed that a Validation method should be devised that would be more representative of ongoing production. 小组同意应该设计一种更具有现生产代表性的确认方法。,Verification of Robustness殷实可靠性的验证,Verification of Robustness needs to be considered for the process as well as the product 对过程和产品都需要考虑殷实可靠性的验证。,Apply

7、ing RED in Manufacturing在制造应用RED,The same noise factor considerations apply 相同干扰因素考虑事项应用 The same Noise Factor Management Strategies apply 相同干扰因素管理策略应用 Each needs to be thought of a little differently to RED for the product 对于该产品，每一项都需要对RED有不同的考虑,Noises in the PFMEAPFMEA中的干扰,In the same way that noi

8、ses appear in the cause section of the DFMEA, the should also appear in the Cause section of the PFMEA 同样的方式，干扰在DFMEA的原因部分出现，也应该在PFMEA的原因部分出现,Noise Factor Management Strategy噪声干扰因素管理策略,The team needed to review each of the Potential Causes for Failure listed in the G8D or the PFMEA and determine the

9、 appropriate Noise Factor Management Strategy. 小组需要评审在G8D或PFMEA中所列失效的每一种潜在原因，确定适当的噪声干扰因素管理策略,Factors Affecting Process Capability因素影响过程能力,An initial Process Capability Study needed to be conducted. 需要进行初始过程能力的研究 The tensioning operation and the subsequent measurement of tension would potentially be

10、affected by ambient audible noise. 张力调整和随后张力的测量会潜在地受周围可听见噪声的影响,Measurement System Analysis测量系统分析,Before conducting any study, confirmation is required that the measurement system performance is acceptable. 在做任何研究之前，需要确认测量系统的性能是可接受的。 If the performance of the measurement system, is not satisfactory,

11、then any Production Validation conducted using the measurement system may not be valid. 如果测量系统的性能不满意，那么使用该测量系统进行的任何生产确认都可能无效。,Gauge R that is, at vehicle, system, sub-system and component levels. 验证和确认应该发生在系统工程V模型的所有级别上，也就是说，在整车、系统、子系统和零部件级别上。 The focus of verification should be on the lower levels

12、of the Systems Engineering V model. 验证的焦点应该在系统工程V模型的较低级别上。,Summary Testing Type总结测试类型,Verification is a team-based process that includes representatives from all key areas involved. 验证是一个以团队为基础的过程，包括来自所有参与领域的代表 Process Capability and Measurement System Analysis are an integral part of Production Val

13、idation. 过程能力和测量系统分析是生产确认中的主要部分 DV&PV tests should use a sample size based on engineering confidence DV&PV试验应该采用以工程可信度为基础的样本量 Verification should be based on analytical testing whenever possible and appropriate and conducted systemically in an efficient and effective way. 只要可能和适当，验证应该以分析测试为基础，并以一种有效

14、果和效率的方式系统地实施。,DV&PV as a Total ProcessDV&PV作为一个整体过程,DV&PV should be viewed as a total process integrated into FPDS. The DV&PV process starts with the customer requirements, verifying that the design meets these requirements, and ends up verifying that the product, as manufactured, also meets these r

15、equirements. DV&PV应被视为并入FPDS中的一个整体过程。DV和PV过程以顾客的需求开始，验证设计满足这些需求，而以验证制造出的产品也满足这些需求为终点。,Features of a Good Verification/Validation Process好的验证/确认过程的特性,Features found in a good verification or validation process include the following: 一个好的验证或确认过程中发现的特性包括下列各项： Driven by functional requirements 以功能的需求驱动

16、Based on Key Life Tests developed from Real World Usage Profiles 以从真实世界顾客使用状况开发出来的关键寿命试验为基础 Incorporates the effect of all critical Noise factors 合并所有关键噪声干扰因素的影响 Uses accelerated testing techniqus 使用加速测试技术 Measures functional degradation 测量功能的退化 Uses a sample size based on engineering confidence 使用基

17、于工程可信度的样本量,Checklist 检查清单,Good DV&PV Testing: 好的DV&PV测试： Is requirements driven 是需求驱动的 Incorporates RED principles and processes 合并RED原理和过程 Includes the effects of critical Noise factors 包括关键干扰因素的影响 Confirms robustness and reliability 确定殷实可靠性和可靠性 Is based on a KLT 是以KLT为基础的 Uses relevant information

18、 as an input to development 使用相关的信息作为开发的输入 P-diagram FMEAs Global 8Ds SDSs Is accelerated 是加速的 Measures Functional degradation 测量功能的退化 Uses sample size based on Engineering confidence 使用基于工程可信度的样本量 Is conducted at the lower levels of the Systems Engineering V model 在系统V模型的较低级别进行 Uses CAE based metho

19、ds wherever possible 尽可能使用基于各种方法的CAE,Next Steps下一步,Take the APEL 进行APEL,Verification of Product Design and Manufacture产品设计和制造的验证,The need to verify a design applies equally to 验证设计的需要同样应用于 the design of a product 产品的设计 the design of the manufacturing process by which the product is made 生产该产品的制造工艺的设计 Both verif