1. Chapter 8 Product Evaluation for Performance and the Effects of Variation

2. 8.1 Introduction

3. 8. 2 The importance of Functional Evaluation 8
8.2 The importance of Functional Evaluation 8.3 The Goals of Performance Evaluation
Evaluation of product performance must support these factor

6. 8.4 Accuracy, Variation, and Noise

10. 8.4.1 The Effect of Variation on Product Quality
Some examples of control
Controlling the temperature of food
Control the feel of power steering so the feel of the car stays constant regardless of road condition
Controlling the dimensions of part so they will fit with other parts regardless of variation in the mating parts.

12. Noises are classified as:
█ Environmental, or External, condition
Example of BikeE Suspension performance

14. The things without control
Robust Design:

16. 8.5 Model for performance Evaluation
8.5.1
8.5.2
8.5.3

17. 8.5.4
Analytical mode, number of isssues were raised

18. 8.5.5

19. 8.5.6
8.5.7
8.5.8

20. 8.6 Tolerance Analysis
8.6.1 The difference Between Manufacturing Variations and Tolerance
3 standard deviation(99.68%)
6 standard deviation

21. 8.6.2 General Tolerancing Consideration

22. 8.6.3 Additive Tolerance Stack-Up

24. Worse case analysis:
Minimum length lb=19.97mm
Maximum washer lw=1.95mm
ls= 24.1mm
Lg =0.23mm

25. 8.6.4 Statistical Stack-up Analysis

28. 8.7 Sensitivity Analysis

33. 8.8 Robust Design By Analysis

36. 8.9 Robust Design Through Testing

40. 8.9.4
8.9.5