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Leg Mechanism
A leg mechanism (walking mechanism) is a mechanical system designed to provide a propulsive force by intermittent frictional contact with the ground. This is in contrast with wheels or continuous tracks which are intended to maintain continuous frictional contact with the ground. Mechanical legs are linkages that can have one or more actuators, and can perform simple planar or complex motion. Compared to a wheel, a leg mechanism is potentially better fitted to uneven terrain, as it can step over obstacles. An early design for a leg mechanism called the ''Plantigrade Machine'' by Pafnuty Chebyshev was shown at the Exposition Universelle (1878). The original engravings for this leg mechanism are available. The design of the leg mechanism for the Ohio State Adaptive Suspension Vehicle (ASV) is presented in the 1988 book ''Machines that Walk''. In 1996, W-B. Shieh presented a design methodology for leg mechanisms. The artwork of Theo Jansen, see Jansen's linkage, has been pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strandbeest Walking With Six Legs
Theodorus Gerardus Jozef Jansen (; born 14 March 1948) is a Dutch artist. In 1990, he began building large mechanisms out of PVC that are able to move on their own and, collectively, are titled ''Strandbeest''. The kinetic sculptures appear to walk. His animated works are intended to be a fusion of art and engineering. He has said that "The walls between art and engineering exist only in our minds." He strives to equip his creations with their own artificial intelligence so they may avoid obstacles such as the sea, by changing course when detected. Early life Jansen was born in Scheveningen in the Netherlands. He grew up with a talent for both physics and art, and studied physics at the Delft University of Technology. Jansen left the university in 1974 without a degree. While at Delft, Jansen was involved in many projects that involved both art and technology, including a paint machine and a flying-saucer machine. Flying saucer In 1979 Jansen started using cheap PVC pipes to b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinematic Pair
In classical mechanics, a kinematic pair is a connection between two physical objects that imposes constraints on their relative movement (kinematics). German engineer Franz Reuleaux introduced the kinematic pair as a new approach to the study of machines that provided an advance over the motion of elements consisting of simple machines. Description Kinematics is the branch of classical mechanics which describes the motion of points, bodies (objects) and systems of bodies (groups of objects) without consideration of the causes of motion. Kinematics as a field of study is often referred to as the "geometry of motion". For further detail, see Kinematics. Hartenberg & Denavit presents the definition of a kinematic pair: In the matter of connections between rigid bodies, Reuleaux recognized two kinds; he called them higher and lower pairs (of elements). With higher pairs, the two elements are in contact at a point or along a line, as in a ball bearing or disk cam and follower; t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinematics
Kinematics is a subfield of physics, developed in classical mechanics, that describes the Motion (physics), motion of points, Physical object, bodies (objects), and systems of bodies (groups of objects) without considering the forces that cause them to move. Kinematics, as a field of study, is often referred to as the "geometry of motion" and is occasionally seen as a branch of mathematics. A kinematics problem begins by describing the geometry of the system and declaring the initial conditions of any known values of position, velocity and/or acceleration of points within the system. Then, using arguments from geometry, the position, velocity and acceleration of any unknown parts of the system can be determined. The study of how forces act on bodies falls within kinetics (physics), kinetics, not kinematics. For further details, see analytical dynamics. Kinematics is used in astrophysics to describe the motion of celestial bodies and collections of such bodies. In mechanical engin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexapod (robotics)
''A six-legged walking robot should not be confused with a Stewart platform, a kind of parallel manipulator used in robotics applications''. A hexapod robot is a mechanical vehicle that walks on six legs. Since a robot can be statically stable on three or more legs, a hexapod robot has a great deal of flexibility in how it can move. If legs become disabled, the robot may still be able to walk. Furthermore, not all of the robot's legs are needed for stability; other legs are free to reach new foot placements or manipulate a payload. Many hexapod robots are biologically inspired by Hexapoda locomotion – the insectoid robots. Hexapods may be used to test biological theories about insect locomotion, motor control, and neurobiology. Designs Hexapod designs vary in leg arrangement. Insect-inspired robots are typically laterally symmetric, such as the RiSE robot at Carnegie Mellon. A radially symmetric hexapod is ATHLETE (All-Terrain Hex-Legged Extra-Terrestrial Explorer) ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strider Linkage In Motion
Strider may refer to: Literature * ''Strider'', standard English title of Leo Tolstoy's novella ''Kholstomer'' * ''Strider'' (novel), a juvenile fiction novel by Beverly Cleary * Strider, an alias of Aragorn, a character from ''The Lord of the Rings by J.R.R. Tolkien'' * Strider, a giant mecha (walking vehicle) in Stanisław Lem's 1987 novel ''Fiasco'' * Dave and Dirk Strider, fictional characters from the webcomic ''Homestuck'' Manga and video games *Strider Hiryu, a manga and video game character who has starred in the following titles **''Strider'' (1988 manga), a 1988 manga by Moto Kikaku ** ''Strider'' (1989 arcade game), a 1989 action game by Capcom ** ''Strider'' (1989 NES video game), a different 1989 game starring the same character ** ''Strider II'' (1990 video game), sequel to the arcade game by Tiertex ** ''Strider 2'' (1999 video game), sequel to the 1989 arcade game by Capcom **''Strider (2014 video game)'', a new game in the series developed by Double Helix Game ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strider Linkage Robot
Strider may refer to: Literature * ''Strider'', standard English title of Leo Tolstoy's novella ''Kholstomer'' * ''Strider'' (novel), a juvenile fiction novel by Beverly Cleary * Strider, an alias of Aragorn, a character from ''The Lord of the Rings by J.R.R. Tolkien'' * Strider, a giant mecha (walking vehicle) in Stanisław Lem's 1987 novel ''Fiasco'' * Dave and Dirk Strider, fictional characters from the webcomic ''Homestuck'' Manga and video games *Strider Hiryu, a manga and video game character who has starred in the following titles **''Strider'' (1988 manga), a 1988 manga by Moto Kikaku ** ''Strider'' (1989 arcade game), a 1989 action game by Capcom ** ''Strider'' (1989 NES video game), a different 1989 game starring the same character ** ''Strider II'' (1990 video game), sequel to the arcade game by Tiertex ** ''Strider 2'' (1999 video game), sequel to the 1989 arcade game by Capcom **''Strider (2014 video game)'', a new game in the series developed by Double Helix Game ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plantigrade Walking 4 Legs
151px, Portion of a human skeleton, showing plantigrade habit In terrestrial animals, plantigrade locomotion means walking with the toes and metatarsals flat on the ground. It is one of three forms of locomotion adopted by terrestrial mammals. The other options are digitigrade, walking on the toes with the heel and wrist permanently raised, and unguligrade, walking on the nail or nails of the toes (the hoof) with the heel/wrist and the digits permanently raised. The leg of a plantigrade mammal includes the bones of the upper leg (femur/humerus) and lower leg (tibia and fibula/radius and ulna). The leg of a digitigrade mammal also includes the metatarsals/metacarpals, the bones that in a human compose the arch of the foot and the palm of the hand. The leg of an unguligrade mammal also includes the phalanges, the finger and toe bones. Among extinct animals, most early mammals such as pantodonts were plantigrade. A plantigrade foot is the primitive condition for mammals; digitig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
