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표제지=0,1,1

제출문=1,2,1

요약문=2,3,6

SUMMARY(영문요약문)=8,9,5

CONTENTS=13,14,2

목차=15,16,2

LIST OF TABLES=17,18,2

LIST OF FIGURES=19,20,4

제1장 서론=23,24,1

제1절 연구개발의 필요성 및 목적=23,24,2

제2절 연구사=24,25,7

제3절 이론 분석=30,31,13

제4절 중부지방 로타리 경운작업 실태=43,44,6

제2장 기존 트랙터 로타리날의 분석=49,50,1

제1절 서언=49,50,1

제2절 재료 및 방법=49,50,1

1. 공시재료=49,50,1

2. 로타리날의 형태분석=49,50,1

3. 로타리날의 운동분석=50,51,5

제3절 결과 및 고찰=54,55,1

1. 시스템 성능시험 결과=54,55,1

2. 로타리날의 형태분석 결과=55,56,2

3. 로타리날의 운동분석 결과=56,57,5

제4절 요약 및 결론=60,61,1

제3장 자동 토양경도 측정 시스템=61,62,1

제1절 서언=61,62,1

제2절 재료 및 방법=61,62,1

1. 공시재료=61,62,1

2. 하드웨어 설계=62,63,4

3. 소프트웨어 설계=66,67,1

4. 성능시험=66,67,2

제3절 결과 및 고찰=68,69,1

1. 토양경도 측정부 캘리브레이션 결과=68,69,1

2. 성능시험 결과=68,69,8

제4절 요약 및 결론=75,76,2

제4장 기존 로타리날의 경운부하 측정 및 로타리날의 요인시험=77,78,1

제1절 서언=77,78,1

제2절 재료 및 방법=77,78,1

1. 공시재료=77,78,1

2. 하드웨어 설계=77,78,6

3. 소프트웨어 설계=82,83,4

제3절 결과 및 고찰=86,87,1

1. 측정대차 캘리브레이션 결과=86,87,1

2. 기존 로타리날 경운부하 측정결과=87,88,2

3. 로타리날 요인시험 결과=89,90,7

제4절 요약 및 결론=95,96,1

제5장 이물질 감김 방지장치 및 흙부착 방지장치=96,97,1

제1절 서언=96,97,1

제2절 재료 및 방법=97,98,1

1. 공시재료=97,98,1

2. 로타리 소요동력 측정장치=98,99,3

3. 이물질 감김 방지장치=101,102,3

4. 흙부착 방지장치=103,104,4

5. 성능시험=107,108,3

제3절 결과 및 고찰=110,111,1

1. 로타리 소요동력 측정장치의 캘리브레이션 결과=110,111,1

2. 이물질 감김 방지장치 성능시험 결과=111,112,11

3. 흙부착 방지장치 성능시험 결과=122,123,19

제4절 요약 및 결론=141,142,1

제6장 에너지 절감형 트랙터 로타리날=142,143,1

제1절 서언=142,143,1

제2절 재료 및 방법=142,143,1

1. 로타리날 최적 배열설계=142,143,3

2. 로타리날 최적설계=145,146,1

3. 성능시험=145,146,3

제3절 결과 및 고찰=147,148,1

1. 로타리날 최적 배열설계 결과=147,148,6

2. 로타리날 최적설계 결과=152,153,3

3. 성능시험 결과=154,155,8

제4절 요약 및 결론=162,163,1

제7장 종합결론 및 요약=163,164,2

참고문헌=165,166,6

영문목차

[title page etc.]=0,1,13

CONTENTS=13,14,4

List of Tables=17,18,2

List of Figures=19,20,4

Chapter 1 Introduction=23,24,1

Para. 1 Necessity and objectives Study & Development=23,24,2

Para. 2 History of Study=24,25,7

Para. 3 Theoretical Analysis=30,31,13

Para. 4 Realities of Rotary Tilling Operations in Central Region=43,44,6

Chapter 2 Analysis of Conventional Rotary Blades=49,50,1

Para. 1 Introduction=49,50,1

Para. 2 Materials and Method=49,50,1

1. Material Used=49,50,1

2. Shaped Analysis of Rotary Blade=49,50,1

3. Kinematical Analysis of Rotary Blades=50,51,5

Para. 3 Results and Discussion=54,55,1

1. Results of System Performance Test=54,55,1

2. Results of Structural Analysis of Rotary Blade=55,56,2

3. Results of Mechanical Analysis of Rotary Blade=56,57,5

Para. 4 Summary and Conclusion=60,61,1

Chapter 3 Automated Soil Hardness Measuring System=61,62,1

Para. 1 Introduction=61,62,1

Para. 2 Materials and Method=61,62,1

1. Material Used=61,62,1

2. Hardware Design=62,63,4

3. Software Design=66,67,1

4. Performance Test=66,67,2

Para. 3 Results and Discussion=68,69,1

1. Results of Calibration of Soil Hardness measuring system=68,69,1

2. Results of Performance Test=68,69,8

Para. 4 Summary and Conclusion=75,76,2

Chapter 4 Measurement of Power Requirement Conventional Rotary Blades & Factor Test of Rotary Blade=77,78,1

Para. 1 Introduction=77,78,1

Para. 2 Material and Method=77,78,1

1. Material Used=77,78,1

2. Hardware Design=77,78,6

3. Perfoiniance Test=82,83,4

Para. 3 Results and Discussion=86,87,1

1. Results of Calibration of Torque Meter=86,87,1

2. Results of Measurement of Power Requirement Conventional of Existing Rotary Blades=87,88,2

3. Results of Factor Test of Rotary Blade=89,90,7

Para. 4 Summary and Conclusion=95,96,1

Chapter 5 Alien substance Winding Prevention Device & Soil Adherence Prevention Device=96,97,1

Para. 1 Introduction=96,97,1

Para. 2 Material and Method=97,98,1

1. Material Used=97,98,1

2. Torque Meter=98,99,3

3. Alien Substance Winding Prevention Device=101,102,3

4. Soil Adherence Prevention Device=103,104,4

5. Performance Test=107,108,3

Para. 3 Results and Discussion=110,111,1

1. Results of Calibration of Torque Meter=110,111,1

2. Results of Perfoiliiance Test of Alien Substance Winding Prevention Device=111,112,11

3. Results of Performance Test of Soil Adherence Prevention Device=122,123,19

Para. 4 Summary and Conclusion=141,142,1

Chapter 6 Energy-Saving Rotary Blade for Farm Tractor=142,143,1

Para. 1 Introduction=142,143,1

Para. 2 Materials and Method=142,143,1

1. Design of Optimum Arrangement of Rotary Blades=142,143,3

2. Design of Optimum Rotary Blade=145,146,1

3. Performance Test=145,146,3

Para. 3 Results and Discussion=147,148,1

1. Results of Design of Optimum Arrangement of Rotary Blades=147,148,6

2. Results of Design of Optimum Rotary Blade=152,153,3

3. Results of Performance Test=154,155,8

Para. 4 Summary and Conclusion=162,163,1

Chapter 7 Conclusion and Summary=163,164,2

References=165,166,6

표목차

Table 1.1 The specifications of experimental rotary blade=36,37,1

Table 1.2 The ratio of mechanization by farm working (unit:%)=43,44,1

Table 1.3 The basic statistics of sample=43,44,1

Table 1.4 The actual conditions of tillage=46,47,1

Table 1.5 The present conditions of tractor possess=46,47,1

Table 1.6 The patterns of tilling and ground leveling of tractor=47,48,1

Table 1.7 The areas of tilling area by tractor in a year=47,48,1

Table 1.8 The areas of exchange of tractor rotary blade=48,49,1

Table 1.9 The periods of exchange of tractor rotary blades=48,49,1

Table 2.1 Specification of the system for analysis of revolution motion characteristics of rotary blade=51,52,1

Table 2.2 The design parameter of rotary blade=55,56,1

Table 2.3 The position of rotary blade contacted with soil according to tilling depth=59,60,1

Table 2.4 The result of analyzing revolution motion characteristics of rotary blade=59,60,1

Table 3.1 Hardware components used for the automatic soil hardness measuring system=63,64,1

Table 3.2 The results of measuring soil hardness with manual-type device(kPa)=71,72,1

Table 3.3 The results of measuring soil hardness with automatic device(kPa)=72,73,1

Table 3.4 The result of statistics hypothesis testing=75,76,1

Table 4.1 The soil physical character of man-made soil bin=78,79,1

Table 4.2 The specifications of measurement car=79,80,1

Table 4.3 The experimental arrangement on soil bin=85,86,1

Table 4.4 The experimental arrangement on soil bin=85,86,1

Table 4.5 The calibration result of torque meter=86,87,1

Table 4.6 The experimental results=90,91,1

Table 4.7 The experimental results=93,94,1

Table 5.1 Field condition and average moisture content=97,98,1

Table 5.2 The specification of device measuring rotary power requirement=98,99,1

Table 5.3 The results of performance test with general rotary=112,113,2

Table 5.4 The results of performance test with rotary preventing an alien substance to be wound=116,117,2

Table 5.5 The results of hypothesis testing in perfolniance=119,120,1

Table 5.6 The results of performance test with no material preventing soil adherence=123,124,2

Table 5.7 The results of performance test with stainless steel material preventing soil adherence=127,128,2

Table 5.8 The results of perfoiniance test with rubber material preventing soil adherence=131,132,2

Table 5.9 The results of performance test with PE material preventing soil adherence=135,136,2

Table 5.10 The results of hypothesis testing in performance=138,139,1

Table 6.1 The experimental arrangement at soil bin=144,145,1

Table 6.2 Field condition and average moisture content=145,146,1

Table 6.3 The experimental result=151,152,1

Table 6.4 The results of performance test for comparing rotary power requirement (A type)=156,157,1

Table 6.5 The results of performance test for comparing rotary power requirement (B type)=157,158,1

Table 6.6 The results of perfouniance test for comparing rotary power requirement(C type)=158,159,1

Table 6.7 Breaking performance of the developed and the conventional blades=161,162,1

그림목차

Fig. 1.1 The rotary blade of Meyenburg type=24,25,1

Fig. 1.2 Meyenburg's garden rotary cultivator=25,26,1

Fig. 1.3 Typical rotary tiller in japan=26,27,1

Fig. 1.4 Two kinds of rotary blades=26,27,1

Fig. 1.5 The graph of the path of a point forward-turning rotary tillage.=30,31,1

Fig. 1.6 The names of every part and angle factors of rotary blade.=32,33,1

Fig. 1.7 Cutting operation of sectional shapes along lengthwise blades.=34,35,1

Fig. 1.8 The section form of bending part.=35,36,1

Fig. 1.9 The contrast photo shapes of rotary blade.=35,36,1

Fig. 1.10 The measuring schematic diagram of shape factors of rotary blade (I).=37,38,1

Fig. 1.11 The measuring schematic diagram of shape factors of rotary blade (II).=38,39,1

Fig. 1.12 The contrast diagram of scoop angle between rotary blade which the bending part is plane and curved surface of bending part when they cut in soil.=39,40,1

Fig. 1.13 The enlarged figure of part I.=39,40,1

Fig. 1.14 The enlarged figure of part II.=40,41,1

Fig. 1.15 The figureof θ made by the end surfaces of rotary blade.=41,42,1

Fig. 2.1 Schematic diagram of system for analizing revolution motion characteristics of rotary blade=50,51,1

Fig. 2.2 Photo of system for analysis of motion characteristics of rotary blade=51,52,1

Fig. 2.3 Photo of actuator used by tractor forward direction axis=52,53,1

Fig. 2.4 Photo of revolution motion part of rotary blades=52,53,1

Fig. 2.5 The main window of control program of system for analyzing revolution motion characteristics of rotary blade=53,54,1

Fig. 2.6 Photo of testing for analysis of motion characteristics=54,55,1

Fig. 2.7 Schematic diagram of design parameter of rotary blade=55,56,1

Fig. 2.8 The graph of edged-curve of rotary blade in each type=56,57,1

Fig. 2.9 3D simulation of revolution of rotary blade=57,58,1

Fig. 2.10 Analysis of rotary blade coordinates according to revolution angle=57,58,1

Fig. 2.11 The result of rotary blade coordinates according to revolution angle=58,59,1

Fig. 2.12 Schematic diagram of C type rotary blade=58,59,1

Fig. 3.1 Schematic diagram of a tractor-attached automatic soil hardness measuring system=62,63,1

Fig. 3.2 A view of sensor part for measuring soil hardness=64,65,1

Fig. 3.3 A view of driving part of the measuring system=64,65,1

Fig. 3.4 A view of Photo of attaching part of the measuring system=65,66,1

Fig. 3.5 The flow-chart of the control system for soil hardness measurement=65,66,1

Fig. 3.6 Perfoiniance test bed=67,68,1

Fig. 3.7 A view of perfoniiance test of the measuring system=67,68,1

Fig. 3.8 Calibration chart for the load cell=68,69,1

Fig. 3.9 The example of measuring soil hardness by penetration depth with automatic device=70,71,1

Fig. 3.10 The result of measuring soil hardness with manual-type device(kPa)=73,74,1

Fig. 3.12 The result of soil hardness measurement with automatic device(KPa)=74,75,1

Fig. 4.1 The section figureof man-made soil bin=78,79,1

Fig. 4.2 The measurement car=79,80,1

Fig. 4.3 The construction of measuring system=79,80,1

Fig. 4.4 The photo of experimental rotary=80,81,1

Fig. 4.5 The schematic diagram of dynamic transmission of rotary=80,81,1

Fig. 4.6 The schematic diagram of adhesive position of strain gauge=81,82,1

Fig. 4.7 The photo of rotary shaft after processing=81,82,1

Fig. 4.8 The photo of fixed rotary shaft=82,83,1

Fig. 4.9 The method of soil hardness control=83,84,1

Fig. 4.10 Test section of soil bin=84,85,1

Fig. 4.12 The Photo of device in the experiment=84,85,1

Fig. 4.13 Test section of soil bin=84,85,1

Fig. 4.13 The calibration results of torque meter=86,87,1

Fig. 4.14 The results of measuring tillage power in each type=88,89,1

Fig. 4.15 The results of measuring tillage power in each condition=91,92,1

Fig. 4.16 The result of average power=94,95,1

Fig. 4.17 The result of specific torque=94,95,1

Fig. 5.1 The photo of rotary power requirement measuring device=99,100,1

Fig. 5.2 The photo of device in the experiment=100,101,1

Fig. 5.3 Block diagram of the data acquisition and analysis system=100,101,1

Fig. 5.4 The drawing of developed rotary tiller for preventing an alien substance being rolled=101,102,1

Fig. 5.5 The photo of developed rotary tiller for preventing an alien substance being rolled=102,103,2

Fig. 5.6 The drawing of rotary tiller for preventing soil adherence=104,105,1

Fig. 5.7 The device for preventing soil adherence=105,106,1

Fig. 5.8 The photo of rotary tiller for preventing soil adherence=106,107,1

Fig. 5.9 The photo of system calibration=107,108,1

Fig. 5.10 The photo of rotary for preventing an alien substance to be wound in performance test=108,109,1

Fig. 5.11 The photo of rotary for preventing soil adherence in performance test=109,110,1

Fig. 5.12 Calibration curve of torque meter=110,111,1

Fig. 5.13 The signal from torque meter and proximity sensor with general rotary in performance test=114,115,1

Fig. 5.14 The state of an alien substance wound with general rotary in performance test=114,115,1

Fig. 5.15 The signal from torque meter and proximity sensor with rotary preventing an alien substance to be wound in performance test=118,119,1

Fig. 5.16 The state of an alien substance wound with rotary preventing an alien substance to be wound in performance test=118,119,1

Fig. 5.17 The result of performance test in each material=120,121,1

Fig. 5.18 The signal from torque meter and proximity sensor with no material preventing soil adherence=125,126,1

Fig. 5.19 The state of soil adherence with no material preventing soil adherence=125,126,1

Fig. 5.20 The signal from torque meter and proximity sensor with stainless steel material preventing soil adherence=129,130,1

Fig. 5.21 The state of soil adherence with stainless steel material preventing soil adherence=129,130,1

Fig. 5.22 The signal from torque meter and proximity sensor with rubber material preventing soil adherence=133,134,1

Fig. 5.23 The state of soil adherence with rubber material preventing soil adherence=133,134,1

Fig. 5.24 The signal from torque meter and proximity sensor with PE material preventing soil adherence=137,138,1

Fig. 5.25 The state of soil adherence with PE material preventing soil adherence=137,138,1

Fig. 5.26 The result of performance test in each material=139,140,1

Fig. 6.1 The program for designing rotary blades arrangement=143,144,1

Fig. 6.2 The schematic diagram of overlap of rotary=144,145,1

Fig. 6.3 The photo of rotary tilling in performance test=146,147,1

Fig. 6.4 The photo of lattice frame for analysis of breaking performance=147,148,1

Fig. 6.5 The pattern and order of rotary blades of cutting soil-surface=148,149,1

Fig. 6.6 Torque and revolution signal from torque-meter and proximity sensor=148,149,1

Fig. 6.7 Torque curve from the torque-meter and the FFT graph=149,150,1

Fig. 6.8 The result of overlap experiment=150,151,1

Fig. 6.9 Drawing of the developed rotary blade=153,154,1

Fig. 6.10 The photo of energy saving rotary blade developed=154,155,1

Fig. 6.11 The results of performance test for measuring power requirement=155,156,1

Fig. 6.12 The results of breaking performance of the developed and the conventional blades=160,161,1

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