03-08-2012, 04:44 PM
MECHANISMS AND MACHINES
MOM class1.pptx (Size: 5.66 MB / Downloads: 25)
MOTION STUDY
Study of position, displacement, velocity and acceleration of different elements of mechanism
DESIGN REQUIREMENTS
Design: determination of shape and size
Requires knowledge of material
Requires knowledge of stress
Requires knowledge of load acting
(i) static load
(ii) dynamic/inertia load
Link
A resistant body with rigid connections preventing their relative movement is known as link
It is a member of a mechanism connecting other member having relative motion relative to them
PAIRING ELEMENTS
Pairing elements: the geometrical forms by which two members of a mechanism are joined together, so that the relative motion between these two is consistent. Such a pair of links is called Kinematic Pair.
Degrees of freedom/mobility of a mechanism
It is the number of inputs (number of independent coordinates) required to describe the configuration or position of all the links of the mechanism, with respect to the fixed link at any given instant.
MOM class1.pptx (Size: 5.66 MB / Downloads: 25)
MOTION STUDY
Study of position, displacement, velocity and acceleration of different elements of mechanism
DESIGN REQUIREMENTS
Design: determination of shape and size
Requires knowledge of material
Requires knowledge of stress
Requires knowledge of load acting
(i) static load
(ii) dynamic/inertia load
Link
A resistant body with rigid connections preventing their relative movement is known as link
It is a member of a mechanism connecting other member having relative motion relative to them
PAIRING ELEMENTS
Pairing elements: the geometrical forms by which two members of a mechanism are joined together, so that the relative motion between these two is consistent. Such a pair of links is called Kinematic Pair.
Degrees of freedom/mobility of a mechanism
It is the number of inputs (number of independent coordinates) required to describe the configuration or position of all the links of the mechanism, with respect to the fixed link at any given instant.