Talk:Stewart platform

message: Isn't the chronology of the introduction dodgy? Who published in 56 and who in 65? — Preceding unsigned comment added by 64.246.146.251 (talk • contribs) 05:34, July 16, 2008
: How annoying!  I just lost due to a server error a long discussion about Stewart Platform kinematics, in an attempt to partially answer the first question on this talk page. -- foxkid (talk) 00:54, 4 August 2008 (UTC)
thread_title: Incorrect chronology

message: I am trying to analyze the construction of the platform. It looks like slightly more than just actuators, common 2-axis universal joints, and the platforms are needed.
When the upper platform is rotated on the yaw / Z-axis in relation to the lower platform, apparently there also needs to be axial rotation bearings at either the top or bottom plate where the universal joint connects to the plate, to allow the actuator arms to twist as the plate rotates.
Though if hydraulic or pneumatic actuators are used, possibly the piston itself could rotate slightly inside the cylinder without need for axial bearings. Are the seals on hydraulic/pneumatic cylinders able to tolerate shaft rotation?
Can electromechanical actuators tolerate rotation of their shaft/body components?
-- DMahalko (talk) 06:45, 18 February 2015 (UTC)
thread_title:  Axial shaft bearings, or actuator shaft rotation? 

message: Patent        	Publication 	Country	Description
2179605       	Aug 27, 1985	GB     	Motion simulator
2306429       	Dec 29, 1942	USA    	Device for instructing students in flying
2549916       	Jul 25, 1985	FR     	An active joint has compliance (Dispositif d'articulation actif a compliance)
2687491       	Feb 14, 1992	FR     	Vehicle simulator with a wide visual field and low moving masses (Simulateur de vehicule a grand champ visuel et faibles masses en mouvement)
2695783       	Nov 30, 1954	USA    	Simulated aircraft
2802635       	Aug 13, 1957	USA    	Flex jack
3083473       	Apr 2, 1963 	USA    	Space flight environmental simulator
3159968       	Dec 8, 1964 	USA    	Mounting structure for thrust devices
3288421       	Mar 25, 1969	USA    	Movable and rotatable top
3295224       	Jan 3, 1967 	USA    	Motion simulator
3451146       	Jun 24, 1969	USA    	Mechanical motion system
3577659       	May 4, 1971 	USA    	Motion simulator actuator joint
3597857       	Aug 10, 1971	USA    	Ground based flight simulating apparatus
3645011       	Feb 29, 1972	USA    	Motion system with three reciprocatingactuators for flight simulation
3752429       	Aug 14, 1973	USA    	Three axis simulator
3952979       	Apr 27, 1976	USA    	Isolator
4066256       	Jan 3, 1978 	USA    	Amusement ride
4164080       	Aug 14, 1979	USA    	Basic simulator unit
4343610       	Aug 10, 1982	USA    	Motion systems providing three or four degrees of freedom
4507086       	Mar 26, 1985	USA    	Turret shaker mechanism
4559014       	Dec 17, 1985	USA    	Motion limiting systems
4753596       	Jun 28, 1988	USA    	Motion simulator
4872363       	Oct 10, 1989	USA    	Electric positioning apparatus
5028180       	Sep 1, 1989 	USA    	Six-axis machine tool
5179525       	Jan 12, 1993	USA    	Method and apparatus for controlling geometrically simple parallel mechanisms with distinctive connections
5366375       	Nov 22, 1994	USA    	Motion simulator
5401128       	Mar 28, 1995	USA    	In a machine for cutting a material
5403238       	Apr 4, 1995 	USA    	Ride vehicle control system
5433608       	Jul 18, 1995	USA    	Vehicle simulator and method for controlling a vehicle simulator
5473990       	Dec 12, 1995	USA    	Ride vehicle control system
5511979       	Apr 30, 1996	USA    	Motion system including actuator assembly
5722897       	Mar 3, 1998 	USA    	Sensory simulator and editor and a method of using the same
5740699       	Apr 21, 1998	USA    	Wrist joint which is longitudinally extendible
5931739       	Aug 3, 1999 	USA    	Fail-safe ride simulator
6039653       	Mar 21, 2000	USA    	Apparatus, system and method for experiencing motion
6077078       	Jun 20, 2000	USA    	Motion simulator device with at least three degrees of freedom
6094180       	Jul 25, 2000	USA    	Gimbal-mounted virtual reality display system
6634885       	Oct 21, 2003	USA    	Flight simulators
7033177       	Apr 25, 2006	USA    	Motion simulator
7967688       	Jun 28, 2011	USA    	Motion simulator
8151660       	Apr 10, 2012	USA    	Three axes rotational motion-positioning apparatus
8403673       	Mar 26, 2013	USA    	Motion platform system
20150081100 A1	Mar 19, 2015	USA    	Method for calibrating kinematics
-- DMahalko (talk) 10:58, 10 March 2015 (UTC)
thread_title:  Patent searching for Stewart Platform / 6DOF platform