热成形工艺热管理技术2025|PDF|Epub|mobi|kindle电子书版本百度云盘下载

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Preface1

Nomenclature4

1．Introduction7

1.1 Research background7

1.2 Review of research for thermoforming8

1.3 Descriptions for contents12

2．Simulation method for storing stage15

2.1 Governing equation and method for analysis15

2.1.1 Convective heat transfer16

2.1.2 Conductive heat transfer16

2.2 Time-dependent temperature distribution18

3．Simulation and optimization methods for preheating process20

3.1 Analysis model23

3.2 Development of analysis code suitable for preheating process24

3.2.1 Radiative heat transfer24

3.2.2 Convective heat transfer31

3.2.3 Conductive heat transfer32

3.3 Steady optimization for heater power distribution34

3.3.1 Basic theory for optimization34

3.3.2 Steady heater power distribution38

3.3.3 Effect of initial temperature of sheet44

3.3.4 Definition of heating time and heater power46

3.4 Unsteady optimization for variation of heater power54

3.4.1 Effect of variation of heater power54

3.4.2 Unsteady optimization using response surface method55

3.4.3 Unsteady optimization using analytic method70

3.4.4 Unsteady optimization using approximate analytic method76

3.4.5 Unsteady optimization using finite difference method98

4．Simulation method for cooling process105

4.1 Prediction method of cooling time106

4.2 Development of 1-d analysis code107

4.2.1 2-d analysis107

4.2.2 Conversion from 2-d to 1-d problem109

4.2.3 1-d FDM analysis code110

4.3 Specification of 1-d analysis conditions112

5．Conclusions115

Bibliography118