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Revolute joint

A revolute joint (also called pin joint or hinge joint) is a one-degree-of-freedom kinematic pair used frequently in mechanisms and machines.[1] The joint constrains the motion of two bodies to pure rotation along a common axis. The joint does not allow translation, or sliding linear motion, a constraint not shown in the diagram. Almost all assemblies of multiple moving bodies include revolute joints in their designs. Revolute joints are used in numerous applications such as door hinges, mechanisms, and other uni-axial rotation devices.[2]

Revolute joint with and without shoulders, cutaway views

A revolute joint is usually made by a pin or knuckle joint, through a rotary bearing. It enforces a cylindrical contact area, which makes it a lower kinematic pair, also called a full joint. However, If there is any clearance between the pin and hole (as there must be for motion), so-called surface contact in the pin joint actually becomes line contact.[3]

The contact between the inner and outer cylindrical surfaces is usually assumed to be frictionless. But some use simplified models assume linear viscous damping in the form , where T is the friction torque, ω is the relative angular velocity, and B is the friction constant. Some more complex models take stiction and stribeck effect into consideration.[4]

The door handle rotates an internal revolute joint to retract or release the latch bolt of the spring latch

See also edit

References edit

  1. ^ Norton, Robert L. (2008). "2". Design of Machinery (4th ed.). Boston, MA: McGraw Hill Higher Education. p. 33. ISBN 978-0-07-312158-1.
  2. ^ Robotics Research Group. . University of Texas at Austin. Archived from the original on 2009-03-11. Retrieved 2009-02-04.
  3. ^ Norton, Robert L. Design of machinery: an introduction to the synthesis and analysis of mechanisms and machines. Boston: McGraw-Hill Higher Education, 2004. p. 31.
  4. ^ Moore, Jacobs. "Bearing Friction". Mechanics Map. Retrieved June 6, 2020.


revolute, joint, revolute, joint, also, called, joint, hinge, joint, degree, freedom, kinematic, pair, used, frequently, mechanisms, machines, joint, constrains, motion, bodies, pure, rotation, along, common, axis, joint, does, allow, translation, sliding, lin. A revolute joint also called pin joint or hinge joint is a one degree of freedom kinematic pair used frequently in mechanisms and machines 1 The joint constrains the motion of two bodies to pure rotation along a common axis The joint does not allow translation or sliding linear motion a constraint not shown in the diagram Almost all assemblies of multiple moving bodies include revolute joints in their designs Revolute joints are used in numerous applications such as door hinges mechanisms and other uni axial rotation devices 2 Revolute joint with and without shoulders cutaway views A revolute joint is usually made by a pin or knuckle joint through a rotary bearing It enforces a cylindrical contact area which makes it a lower kinematic pair also called a full joint However If there is any clearance between the pin and hole as there must be for motion so called surface contact in the pin joint actually becomes line contact 3 The contact between the inner and outer cylindrical surfaces is usually assumed to be frictionless But some use simplified models assume linear viscous damping in the form T B w displaystyle T B omega where T is the friction torque w is the relative angular velocity and B is the friction constant Some more complex models take stiction and stribeck effect into consideration 4 The door handle rotates an internal revolute joint to retract or release the latch bolt of the spring latchSee also editCylindrical joint Kinematics Degrees of freedom mechanics Kinematic pair Mechanical joint Prismatic jointReferences edit Norton Robert L 2008 2 Design of Machinery 4th ed Boston MA McGraw Hill Higher Education p 33 ISBN 978 0 07 312158 1 Robotics Research Group Joint Types University of Texas at Austin Archived from the original on 2009 03 11 Retrieved 2009 02 04 Norton Robert L Design of machinery an introduction to the synthesis and analysis of mechanisms and machines Boston McGraw Hill Higher Education 2004 p 31 Moore Jacobs Bearing Friction Mechanics Map Retrieved June 6 2020 nbsp This classical mechanics related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Revolute joint amp oldid 1191875959, wikipedia, wiki, book, books, library,

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