Undriven kinematic systems

Undriven kinematic systems

With the undriven joint sub systems can be built to generate a more realistic kinematic simulation of the resource. However this is not an infinite and is limited to a series of possible sub systems that FASTSUITE Edition 2 supports and that are built with certain design rules. For all sub systems the main rule is that they are created within an existing kinematic skeleton, thus not between two kinematic skeletons, and that the start and end of the sub system is a driven joint.

System	Kinematic definition	Design rule
Cardan	rotation joint rotation joint	The first joint is perpendicular to the second joint The joint axis must intersect
Suspension TRR	translation joint rotation joint rotation joint	All rotation axes must be parallel The translation axis must be orthogonal to the rotational axes The translation axis must be parallel to one of the axes, but not the same, of the parent joint
Suspension RTR	rotation joint translation joint rotation joint	All rotation axes must be parallel The translation axis must be orthogonal to the rotational axes The translation axis lies directly in between the first and second rotational axes
Suspension RoTR	rotation joint translation joint rotation joint	All rotation axes must be parallel The translation axis must be orthogonal to the rotational axes The translation axis does not point directly to the first rotational axis
Suspension RToR	rotation joint translation joint rotation joint	All rotation axes must be parallel The translation axis must be orthogonal to the rotational axes The translation axis does not point directly to the second rotational axis
Suspension RRT	rotation joint rotation joint translation joint	All rotation axes must be parallel The translation axis must be orthogonal to the rotational axes The translation axis must be parallel to one of the axes, but not the same, of the parent joint
Linkage gearing	rotation joint rotation joint rotation joint	All the three rotation axes must be parallel All three joint positions must be different All three joints are not to lie in line, not in design, nor while moving

More kinematic reference information