Does a machine run well by virtue of its accuracies, or its freedoms? This work presents an exciting, diagrammatic display of the hidden geometry of freedom and constraint. It bolsters the imaginative design of robots, but applies across all fields of machinery. The figures and their captions comprise alone a self-standing story, and this connects effectively with the rigorously argued text. The seamless combination of the two volumes (1984, 1990) renders the internal cross-referencing (forward and backward within the volumes) easier to look up. The appearance of this paperback is a clear…mehr
Does a machine run well by virtue of its accuracies, or its freedoms? This work presents an exciting, diagrammatic display of the hidden geometry of freedom and constraint. It bolsters the imaginative design of robots, but applies across all fields of machinery. The figures and their captions comprise alone a self-standing story, and this connects effectively with the rigorously argued text. The seamless combination of the two volumes (1984, 1990) renders the internal cross-referencing (forward and backward within the volumes) easier to look up. The appearance of this paperback is a clear testament to the work's ongoing readership. The term screw theory occurs throughout. This relates (after Ball) to the book's philosophy; and one might equally mention kinetostatics (after Federhofer). An all-pervading, counter-intuitive fact accordingly presents itself: while, analogously, angular velocity relates to force, linear velocity relates to couple. A direct consequence of Freedom in Machinery is a more recent book by the same author. Specifically titled General Spatial Involute Gearing and published in Germany (2003), it exemplifies the many ways in which Freedom in Machinery clarifies the enigmatic field of spatial mechanism. That field continuously expands with the current, continuous thrust of ordinary engineering practice.
Jack Phillips is a native of Tupelo, MS but has lived in Zion, IL most of his life. He enjoys spending time with his child, Britney. Jack's interests include ATV riding, movies, water parks, tractor driving, snowmobiling, UFC, NFL, NBA, and NHL. He enjoys driving his 1979 Pontiac Trans AM, Cummings Diesel Ram truck, and 1968 Firebird. He would also like to share a picture of his massive, 302 pound, killer croc carved pumpkin he carved in 2016. There is a size 12 shoe in front of the pumpkin to show comparison.
Inhaltsangabe
Volume I: Preface General introduction 1. Mechanism and the mobility of mechanism 2. Overconstraint and the nature of mechanical motion 3. Some of the various lines in a moving body 4. Enumerative geometry and the powers of infinity 5. Rigidity and the instantaneous screw axis 6. Irregularity and the freedoms within a joint 7. The possibilities in reality for practical joints 8. Some elementary aspects of two degrees of freedom 9. The linear complex of right lines in a moving body 10. Line systems and the dual vectors in mechanics Volume II: Preface 11. Geometrical properties of the linear line systems 12. The vector polygons for spatial mechanism 13. On the two theorems of three axes 14. Some reciprocities across the middle number three 15. The generality and the geometry of the cylindroid 16. The discovery in a mechanism of a cylindroid 17. Action, notion, clearances and backlash 18. Singular events in the cycles of motion 19. Fundamental relations and some algebraic methods 20. The special geometry of some overconstrained loops 21. The helitangent lines in a moving body 22. The cylindroid in gear technology 23. The general and the special screw systems Bibliography Index of proper names Subject index.
Volume I: Preface General introduction 1. Mechanism and the mobility of mechanism 2. Overconstraint and the nature of mechanical motion 3. Some of the various lines in a moving body 4. Enumerative geometry and the powers of infinity 5. Rigidity and the instantaneous screw axis 6. Irregularity and the freedoms within a joint 7. The possibilities in reality for practical joints 8. Some elementary aspects of two degrees of freedom 9. The linear complex of right lines in a moving body 10. Line systems and the dual vectors in mechanics Volume II: Preface 11. Geometrical properties of the linear line systems 12. The vector polygons for spatial mechanism 13. On the two theorems of three axes 14. Some reciprocities across the middle number three 15. The generality and the geometry of the cylindroid 16. The discovery in a mechanism of a cylindroid 17. Action, notion, clearances and backlash 18. Singular events in the cycles of motion 19. Fundamental relations and some algebraic methods 20. The special geometry of some overconstrained loops 21. The helitangent lines in a moving body 22. The cylindroid in gear technology 23. The general and the special screw systems Bibliography Index of proper names Subject index.
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