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Chapter 1Introduction to Rice Harvesting

1.1Introduction for Rice Harvesting

1.1.1Developing of rice harvesting

1.1.2Chinese combine harvester of rice

1.2Field Growth Status of Rice at Maturity

1.3Rice Grain Properties and Modeling

1.3.1Morphological structure of rice grain

1.3.2Mechanical properties of rice grains

1.4Rice Stem Properties and Modeling

1.4.1Morphological structure of rice stem

1.4.2Mechanical properties of rice stems

1.4.3Breaking force distribution and breaking mode

1.5Rice Leaves Properties and Modeling

1.5.1Rice leaves and tensile test property

1.5.2Threeª²point stretching of blades

1.5.3Tensile performance at different temperatures

1.5.4Moisture content law at different temperatures

1.5.5Tensile properties of multiple blades

1.6Control Method for Rice Plant Break Property

1.6.1Rice stem breaking force

1.6.2Rice leaves breaking force

1.6.3Changing of rice microstructure

Chapter 2Rice Stem Cutting and Conveying Equipment

2.1Introduction to Cutting and Conveying

2.1.1Structure of front header

2.1.2Structure of pentagon reel

2.1.3Structure of cutting bar

2.1.4Structure of combine auger

2.1.5Structure of assembly of front header

2.2Static Analysis of Front Header

2.2.1ANSYS simulation of front header

2.2.2Experiment mode of front header

2.3Stems Cutting Situation and Property in Field

2.3.1Rice stems cutting property

2.3.2Stems cutting situation in the field

2.4Dynamic Property during Cutting Process

2.4.1Vibration test method of front header

2.4.2Frame vibration of front header

2.4.3Cutting table rack vibration on land

Chapter 3Rice Threshing and Separation Method

3.1Threshing and Separate Model of Rice Grain

3.1.1Grain threshing and separation model

3.1.2Threshing and separation test of model

3.2Rice Stalk Movement during Rice Threshing

3.2.1Numerical model of threshing unit

3.2.2Straw movement speed and trajectory

3.2.3Eccentric load in threshing process

3.3Design and Optimization of Threshing Cylinder

3.3.1Negative pressure spiral feeding device

3.3.2Design of threshing cylinder cover

3.3.3Length optimization of threshing cylinder

3.3.4Design of transverse and longitudinal combined

3.3.5Design of transverse threshing multiª²cylinders

3.4Threshing Results with Different Mature States

3.4.1Different mature states of rice

3.4.2Threshing and separation performance

3.5Parameters Prediction and Control of Rice Threshing

3.5.1Threshing torque and force of drum

3.5.2Methods of optimal parameter prediction

3.5.3Threshing cylinder parameter control

Chapter 4Damage of Rice in Threshing Process

4.1Threshing Force of Cylinder Threshing Bar

4.1.1Threshing force test method of threshing bar

4.1.2Threshing force of cylinder acting on stem

4.2Damage Property of Rice with Threshing Force

4.2.1Possibility of rice stalk damage

4.2.2Breaking property with combined force on stem

4.2.3Breaking property of rice leaves undergoing

4.3Microstructure of Rice Stalk after Threshing

4.4Grain Damage in Threshing Process

4.4.1Grain damage model undergoing threshing

4.4.2Mechanical characteristic parameters of rice grains

4.4.3Damage model of rice internal damage

4.4.4Internal damage of grain by threshing bars

Chapter 5Cleaning Device and Conveying Process

5.1Mixture Property of Rice after Threshing

5.1.1Floating speed test method of cleaning materials

5.1.2Floating speed of cleaning materials

5.2Influence of Air Flow in Cleaning Device

5.2.1Airª²andª²screen cleaning device

5.2.2Air velocity test in the cleaning room

5.2.3Floating distribution state of mixture

5.3Theories of Rice Grain Cleaning Process

5.3.1Vibration screening motion theory

5.3.2Grains group separating theory

5.3.3Cleaning capability of queuing model

5.4Airª²andª²screen Cleaning under Multiª²parameter

5.4.1CFD simulation of airflow field

5.4.2Fluidª²solid coupling in cleaning room

5.4.3Distribution and loss rate of cleaned grain

Chapter 6Humanª²Machine Interface Chassis Platform

6.1Humanª²Machine Driving Operation Platform

6.1.1Rice combine harvester cab

6.1.2Cab maneuvering space layout

6.2Crawler Chassis Structure of Combine Harvester

6.2.1Overall structure of crawler chassis

6.2.2Main variable of crawler chassis

6.3Development of Crawler Steering Gearbox in Field

6.3.1Unilateral brake steering gearbox

6.3.2Positive and negative steering gearbox

6.3.3Tracks and trajectory of steering gearbox

6.4Design of Chassis Frame and Threshing Frame

6.4.1Structural design of chassis frame

6.4.2Structural design of threshing frame

6.5Bearing Capacity Analysis for Crawler Chassis

6.5.1Chassis frame structure load and stress state

6.5.2Analysis of carrying capacity of chassis frame

6.5.3Test of carrying capacity of chassis frame

Chapter 7Dynamic Load during Rice harvesting

7.1Integrated Status of Combine Harvester

7.1.1Component of combine harvester

7.1.2Combine harvester integration

7.2Dynamic Load of Rice Harvesting

7.2.1Transmission of combine harvester

7.2.2Dynamic load test method in field

7.2.3Affordability load of rice harvesting

7.3Dynamic Load of Crawler Drive Shaft

7.3.1Structure and stress of drive shaft

7.3.2Dynamic load test method of drive shaft

7.3.3Dynamic load undergoing different condition

7.4Reliability and Fatigue of Chassis Gearbox

7.4.1Structure principles of tracked gearbox

7.4.2Gear strength of tracked gearbox

7.4.3Chassis gearbox fatigue test

Chapter 8Dynamic Response Undergoing Harvesting

8.1Component Vibration of Combine Harvester

8.1.1Frame vibration of front header

8.1.2Unbalanced vibration of threshing cylinder

8.1.3Vibration response of harvester chassis frame

8.2Vibration Modal of Whole Combine Harvester

8.2.1Frame vibration model under multiª²source excitation

8.2.2Vibration response with field excitation

8.2.3Unbalance vibration modeling of grading chain drive

8.3Mutual Interference and Coupling Response

8.3.1Coª²frame multiª²cylinder test bench in rice threshing

8.3.2Modal response under multiª²source excitation

8.4Dynamic Simulation Model of Combine Harvester

8.4.1Multiª²source excitation forces of rice combine harvester

8.4.2Comparison of simulation results and test results

Chapter 9Rice Straw Harvester in Field

9.1Straw Treatment after Rice Harvesting

9.2Method for Straw Picking and Baling Harvester

9.2.1Conceptual model of picking and baling machine

9.2.2Design method of picking and baling harvester

9.2.3Structural model of picking and baling machine

9.3Vibration Property during Picking and Baling

9.3.1Inertial vibration of crank slider

9.3.2Crank linkage structure dynamics

9.3.3Natural frequency and modal of piston

9.3.4Vibration property during machine running

9.4Straw Picking and Baling after Harvesting in Field

9.4.1Bundling capacity of machine

9.4.2Baling performance in field

9.5Harvesting and Bundling Integrated Harvester

9.5.1Harvesting and bundling combine harvester

9.5.2Straw bundling of integrated combine harvester

References