Introduction Flashcards
means a device that transmits or modifies force or motion to do useful work.
Machine
an assembly of mechanical components to achieve a particular motion
Mechanism
A word that emphasizes the motion
Mechanism
A word that points to the work done
Machine
the study of motion without regard for the forces involved in the motion.
Kinematics
A body that remains undeformed, no matter what loads are imposed to it
Rigid body
If an extension of one body is only allowed to move in such a way that it
is guided by a rail, a groove, or similar rigid boundary on the second body, this is
called a ______ because it slides along the guide
Slider
This is the property that resists acceleration when a body is acted upon by
a non-zero net force,
Mass
number of independent variables that are required to describe the position of a mechanical
system.
Degrees of freedom
For a system of N particles in two dimensions and subject to M constraints, the number of degrees of freedom is 2N
Assumption for DOF
For a rigid body having 4 particles, and 3 constraints, what is the degrees of freedom?
5 (2N-M)
If the plan results in the creation of something having a physical reality, then the product must be__________
Functional, safe, reliable, competitive, usable, manufactureable, and marketable
A classification of machine design where in there is no need of special knowledge or skills and can be attempted by designers of ordinary technical training. The designer only makes minor iteration or modification in the existing designs of the product
Adaptive design
This type of design needs considerable scientific training and design ability in order to modify the existing designs into a new idea by adopting a new material or different method of manufacture.
Development design
This type of design needs a lot of research, technical ability and creative thinking
New design
