پاورپوینت درباره Dynamic Hashing, Linear Hashing

اختصاصی از فایلکو پاورپوینت درباره Dynamic Hashing, Linear Hashing دانلود با لینک مستقیم و پر سرعت .

فرمت فایل :power point( قابل ویرایش) تعداد اسلاید: 15 اسلاید

v انواع روشهای دیگر Hashing کدامند؟     (ادامه...)

vروش Hashing با فضای پویا (Dynamic) چیست؟

v

vروش Hashing با توسعه خطی (Linear) چیست؟

vروشهای Hashing درمقایسه با یکدیگر چگونه اند؟

v

vدر روشهای Hashing امکان کنترل Splitting چگونه است؟

vروش Hashing با فضای پویا (Dynamic) چیست؟

v

üروش دیگری از Hashing با فضای متغیر میباشد که شباهتهای زیادی با روش قبلی دارد:

ü

qهر دو روش از یک Directory برای نگهداری آدرس Bucketها استفاده میکنند.

qهر دو روش از ساختار Trie برای بسط دادن فضای Directory استفاده مینمایند.

q

üتفاوت عمده این روش اینست که:

ü

qبرای شروع کار مانند روشهای کلاسیک Hashing از یک تابع Hash  برای آدرس دهی در یک فضای ثابت (Fixed Size) استفاده مینماید.

q

qهنگامیکه دراثر افزایش تعداد کلیدها نیازبه Splitting در Bucketها میشود، درختواره هایی با ساختار Trie که ریشه آنها در همان فضای ثابت اولیه قرار دارد شروع به رشد مینمایند.

Dynamic time-history response of concrete rectangular liquid stor

اختصاصی از فایلکو Dynamic time-history response of concrete rectangular liquid stor دانلود با لینک مستقیم و پر سرعت .

Constraining Reservoir Facies Models to Dynamic Data - Impact of Spatial Distribution Uncertainty on Production Forecasts

اختصاصی از فایلکو Constraining Reservoir Facies Models to Dynamic Data - Impact of Spatial Distribution Uncertainty on Production Forecasts دانلود با لینک مستقیم و پر سرعت .

مقاله SPE 71335

Conditioning Integrated Geological Models to Dynamic Flow Data of Giant Saudi Arabian Reservoir

اختصاصی از فایلکو Conditioning Integrated Geological Models to Dynamic Flow Data of Giant Saudi Arabian Reservoir دانلود با لینک مستقیم و پر سرعت .

مقاله SPE 71319

کنترل پایداری دینامیکی خودرو به روش فازی Vehicle Fuzzy Dynamic Stability Control

اختصاصی از فایلکو کنترل پایداری دینامیکی خودرو به روش فازی Vehicle Fuzzy Dynamic Stability Control دانلود با لینک مستقیم و پر سرعت .

Table of Content
ACKNOWLEDGMENT ..................................................................................................... 4
ABSTRACT.......................................................................................................................... 5
LIST OF FIGURES............................................................................................................. 8
LIST OF TABLES............................................................................................................. 10
1 INTRODUCTION........................................................................................................ 11
2 SIMILAR ACTIVITIES ABOUT FDSC................................................................... 13
2.1 DRIVER ASSISTANCE SYSTEM CATEGORIZATION...................................................... 13
2.2 DRIVER ASSISTANCE SYSTEMS REVIEW .................................................................... 16
2.2.1 Dynamic Stability Control (DSC) ............................................................... 16
2.2.2 Anti-lock brake system (ABS) ..................................................................... 16
2.2.3 Dynamic Brake Control (DBC) .................................................................. 17
2.2.4 Cornering Brake Control (CBC) ................................................................. 17
2.2.5 Automatic Stability Control (ASC) .............................................................. 17
2.2.6 Dynamic Traction Control (DTC) ............................................................... 17
2.2.7 Automatic Differential Brake (ADB) ............................................................ 18
2.2.8 Lane Departure Warning (LDW) ................................................................ 18
2.3 INDUSTRIAL DSC SYSTEMS ...................................................................................... 19
2.4 ESP SYSTEM OPERATION .......................................................................................... 20
3 VEHICLE DYNAMICS.............................................................................................. 22
3.1 THE SPRING-MASS-DAMPER (SMD) SYSTEM ............................................................ 22
3.2 BRAKING AND CORNERING....................................................................................... 25
3.3 STEERING AND TIRE INFLUENCES .............................................................................. 26
4 CONTROLLABLE SUSPENSION SYSTEM .......................................................... 30
4.1 SPORTINESS VERSUS COMFORT .............................................................................. 30
4.2 ELECTRONIC CONTROLLER OF DAMPERS.................................................................. 30
4.3 AIR SUSPENSION CONTROLLERS................................................................................ 31
4.4 DYNAMIC DRIVE ANTI- SWAY .................................................................................. 31
4.5 THE SUSPENSION MODEL IN THE SIMULINK ............................................................... 32
5 CONTROLLABLE BRAKES SYSTEM................................................................... 36
5.1 BRAKE BY WIRE SYSTEM ARCHITECTURE ................................................................ 36
6 CONTROLLABLE STEERING SYSTEM............................................................... 40
6.1 FEEDBACK FORCE ..................................................................................................... 42
6.2 ACTIVE STEERING ..................................................................................................... 43
6.3 UNDERSTEERING AND OVERSTEERING ..................................................................... 47
6.4 LATERAL STABILITY AND LATERAL FORCES ............................................................ 48
7 FUNDAMENTALS OF FDSC.................................................................................... 54
7.1 PHYSICS OF DRIVING ............................................................................................ 54
7.2 CENTRIFUGAL FORCES.............................................................................................. 55
7.3 KAMM’S CIRCLE .................................................................................................57
7.4 STABILITY AND CENTER OF GRAVITY....................................................................... 58
7.5 CALCULATION OF CG ........................................................................................... 61
Fuzzy Dynamic Stability Control
7
8 FUZZY LOGIC-BASED ANALYZER ..................................................................... 64
8.1 BACKGROUND .......................................................................................................... 64
8.2 FUZZY LOGIC SYSTEMS: PRINCIPLES OF OPERATION................................................ 65
8.2.1 Fuzzifier ......................................................................................................... 67
8.2.2 Inference Engine and Rule Base..................................................................... 68
8.2.3 Defuzzifier ...................................................................................................... 71
8.3 FUZZY ANALYZER FOR FDSC ................................................................................ 73
8.4 FUZZY ANALYZER FOR STEERING SYSTEM................................................................. 76
9 FDSC IN INDUSTRIAL POINTS OF VIEW........................................................... 79
9.1 CAN PROTOCOL ....................................................................................................... 79
9.2 TECHNICAL EXPLAIN................................................................................................. 87
9.2.1 Sensors .................................................................................................. 87
9.2.2 Central Control Unit ................................................................................ 87
9.2.3 Actuators ............................................................................................... 88
9.3 FINANCIAL JUSTIFICATION........................................................................................ 88
9.4 FEASIBILITY ............................................................................................................ 89
10 SIMULATION RESULTS.......................................................................................... 90
10.1 CASE 1: SIMULATION RESULTS WITHOUT USING ANY ACTUATOR:............................. 92
10.2 CASE 2: SIMULATION RESULTS WHILE ONLY SUSPENSION ACTUATORS ARE
ACTIVATED: ..........95
10.3 SIMULATION RESULTS WHILE ONLY BRAKES ACTUATORS ARE ACTIVATED:............. 98
10.4 CASE 4: SIMULATION RESULTS WHILE ONLY STEERING ACTUATORS ARE ACTIVATED:.
...........101
10.5 CASE 5: SIMULATION RESULTS WHILE ALL ACTUATORS ARE ACTIVATED: .............. 104
11 CONCLUSION ........................................................................................................ 108
APPENDIX A................................................................................................................... 109
APPENDIX B ................................................................................................................... 116
REFERENCES................................................................................................................. 120