Numbering Code	G-AGR05 7EA26 LB83	Year/Term	2022 ・ First semester
Number of Credits	2	Course Type	Lecture
Target Year		Target Student
Language	Japanese and English	Day/Period	Tue.3
Instructor name	NOGUCHI RYOZO (Graduate School of Agriculture Professor)
Outline and Purpose of the Course	Terramechanics is an engineering science on off-road vehicles such as agricultural tractors or construction machinery. In this course, we will summarize the interactions between running devices, or tools, and terrain from the viewpoint of contact mechanics. To solve these interaction problems, fundamental methods from classical theoretical approach to recent numerical or computational approach will be lectured. Moreover, recent topics such as application of terramechanics on extraterrestrial problems will also be introduced.
Course Goals	Be able to classify various off-road vehicles with respect to their characteristic configuration, understand traction dynamics of off-road vehicles, to explain merits and demerits of tires and tracks in off-road environment, to explain how to define those parameters used in parametric methods and the meaning and role of pressure-sinkage and shear stress-shear displacement relationships, to select appropriate analysis methods considering the nature of interaction problems
Schedule and Contents	The following topics will be lectured on one- or two-week basis. Depending on the students' comprehension, the topic may be changed. 1. Guidance and introduction of terramechanics 2. Experimental approach for performance prediction 3. Theoretical approach for performance prediction 4. Semi-empirical approach (Bekker's method) 5. Locomotion in nature 6. Tires and wheels 7. Tracks 8. Prediction of cutting resistance of soil 9. Finite Element Method (FEM) and its application 10. Discrete Element Method (DEM) 11. to 13. Application of Discrete Element Method (DEM) 14. Recent topics on computational mechanics in terramechanics <> Feedback
Evaluation Methods and Policy	Evaluation basis is 40% on submission of assignments, and 60% on term-end examination. Refer to current year's 'Guide to Degree Programs' for attainment levels of evaluation.
Course Requirements	1st- and 2nd-year graduate students, who have learned undergraduate-level applied mechanics or related subjects.
Study outside of Class (preparation and review)	Review and understanding of learned technical terms and ideas after each lecture are recommended.