Final answer:
Angularity control requires maintaining angles within a specified tolerance and using appropriate measurement techniques to ensure compliance. It involves angular acceleration, which is the change in angular velocity over time, and is influenced by torque and angular momentum conservation.
Step-by-step explanation:
Two common requirements of angularity control relate to ensuring the proper orientation of features in mechanical engineering. The first requirement typically involves specifying the angular tolerance zone within which the angle of a particular feature, like a surface or axis, must lie relative to a datum. This controls how much a feature can deviate from the desired angle. The second requirement may specify how measurements must be taken to assess compliance with the angularity specification, such as the use of specific instruments or techniques to measure the angle of rotation, which is the ratio of the arc length to the radius of curvature.
Angular acceleration, which is the rate of change of angular velocity with time, is an important concept when discussing angularity control. In cases where a torque is applied, one might calculate the angular acceleration assuming negligible opposing friction, or consider the effect of an external frictional force. The angular momentum is conserved when no net external torque acts on the system, and the relationship L = Iω (angular momentum equals moment of inertia times angular velocity) helps predict the behaviour of systems under varying conditions.