Unit 8.2: Technology Flashcards
(22 cards)
2 parts held together without a linking component
Direct
A linking component is required to hold the two parts together
Indirect
The linking component (or the surface of the linked component) is not flexible
Rigid
The linking component (or the surface of the linked components) can be deformed when used and has the ability to return to its initial position (elasticity)
Flexible
Linked parts can be separated without damaging either their surfaces or the linked component
Removable
Linked parts cannot be separated without damaging either their surfaces or the linking component
Non-removable
Linking component prevents the two parts from moving independently of one another
Complete
Linking components allows the two parts to move independently from one another
Partial
Ensures straight translational motion
Translational
Ensures the rotational motion of a moving part (eg. Hinge)
Rotational
Ensures the straight translation motion of a moving part at the same time as it rotates along the same axis (direction of translation) (Eg. Groove or thread)
Helical
Mechanical function performed by any component that controls the motion of one or more moving parts; guide motion of moving parts
Guiding control
Receives force required to activate system
Driver component
Receives motion and transfers it to another part
Driven component
Located between the driver and driven components; may have several intermediate components
Intermediate component
Driver component and the driven can be interchanged
Reversible
Exchange of the driver and the driven component results in a mechanical dysfunction
Irreversible
_ gears:
- Rotational motion is _ from one wheel to the other by friction between wheels;
- Rotational motion is _ in each connecting wheel;
- _ reversible
Friction; Transmitted; opposite; yes
Friction Gears advantage
- Easy to assemble
- inexpensive to make
_ and _:
- rotational motion is _ from one pulley to the other by a belt
- rotational direction is _ in each wheel
- system can have more than 2 wheels
- _ Reversible
Pulley; belt; transmitted; same; yes
_ train:
- rotational motion is _ from one gear to other
- rotation direction is _ in each connecting gear
- _ reversible
- used in _ where mechanical advantage
- can increase _ (force) of a small motor
- requires fine machining so that the the teeth have to fit together precisely
Gear, transmitted, opposite, yes, machinery, torque
Chain and sprocket:
- rotational motion is transmitted from one sprocket to the other by a chain
- rotational direction is same
- used in machinery
- the th
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