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New entries needing definitions:
Prismatic Joint
Revolute Joint
Higher order pair
Rotation
Universal joint
GLOSSARY -
AXLE - 1 a : a pin or shaft on or with which a wheel or group of wheels revolves
AUTOMATA - 1 : a mechanism that is relatively self-operating; especially : ROBOT: 2 : a machine or control mechanism designed to follow automatically a predetermined sequence of operations or respond to encoded instructions.
BACKLASH – The backlash in a mechanism. See SLOP
BALL BEARING - : a bearing in which the journal turns upon loose hardened steel balls that roll easily in a race; also : one of the balls in such a bearing. See also – Needle Bearing, Bearing
BEARING - b : a machine part in which another part ([such]as a journal or pin) turns or slides. Bearings can be as simple as a hole drilled in an object (called a Bushing), or as complex as a one way needle bearing. Bearings come in many varieties – Bushings, Ball Bearings, Needle Bearings, One Way Bearings, Tapered Bearings. Also see Ball Bearing, Needle Bearing.
BELLCRANK – a bellcrank is a lever, usually modified with a bend, and often having more than two attachment points.
BRACKET – 1 : an overhanging member that projects from a structure (as a wall) and is usually designed to support a vertical load or to strengthen an angle
2 : a fixture (as for holding a lamp) projecting from a wall or column.
BUSHING – the more proper term for a bearing consisting of a hole drilled in a substrate. Also a bearing made from a solid material, i.e. bronze, brass, plastic, graphite, etc.
CAM - : a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion or vice versa
related to wheel...like a wheel of inclined planes. A simple straight inclined plane can be a cam if while sliding back and forth it raises and lowers a lever.
CRANK - 1 : a bent part of an axle or shaft or an arm keyed at right angles to the end of a shaft by which circular motion is imparted to or received from the shaft or by which reciprocating motion is changed into circular motion or vice versa. A crank is a lever that has special attachments for special purposes. That purpose could be to allow a hand to turn the crank thus turning an axle and thus some part of a machine. Or it could be used with a link of some sort to convert between rotary and straight line reciprocal motion.
DYNAMICS - 1 : a branch of mechanics that deals with forces and their relation primarily to the motion but sometimes also to the equilibrium of bodies
FIX - To set in place, or into position.
| 3. |
to make fast, firm, or stable. |
| 4. |
to place definitely and more or less permanently |
| 11. |
to assign or refer to a definite place |
| 22. |
to become set; assume a rigid or solid form. |
| 23. |
to become stable or permanent. |
FORCE - 1 a (1) : strength or energy exerted or brought to bear : cause of motion or change
FOOT-POUNDS - : a unit of work equal to the work done by a force of one pound acting through a distance of one foot in the direction of the force
FULCRUM - 1 a : PROP; specifically : the support about which a lever turns. Pivot point.
GEAR - a toothed wheel...related to lever...operates like a wheel of levers.
GUSSET – 2 : a plate or bracket for strengthening an angle in framework (as in a building or bridge); See Triangulation. "A gusset does not eliminate stresses, it only moves them" -CTP
HORSEPOWER - 2 : a unit of power equal in the U.S. to 746 watts and nearly equivalent to the English gravitational unit of the same name that equals 550 foot-pounds of work per second
3 : effective power <intellectual horsepower> <computing horsepower>
INCLINED PLANE - : a plane surface that makes an oblique (neither perpendicular nor parallel) angle with the plane of the horizon
JACKSCREW…
JOULE - a unit of work or energy equal to the work done by a force of one Newton acting through a distance of one meter.
JOURNAL – a keyed surface upon which an object slides. A crank journal
KEY – a piece of metal (or other suitable material), often removable, attached to a shaft, to keep an object on the shaft from rotating separately.
KINETIC ENERGY - energy associated with motion.
LEADSCREW…
LEVER - 2 a : a rigid piece that transmits and modifies force or motion when forces are applied at two points and it turns about a third; specifically : a rigid bar used to exert a pressure or sustain a weight at one point of its length by the application of a force at a second and turning at a third on a fulcrum b : a projecting piece by which a mechanism is operated or adjusted
3 orders of levers exist
First order lever - seesaw
Second order lever - prybar
Third order lever - human arm
LINK - 3c d : an intermediate rod or piece for transmitting force or motion; especially : a short connecting rod with a hole or pin at each end
LOAD - 2 a : a mass or weight supported by something <branches bent low by their load of fruit> b : the forces to which a structure is subjected due to superposed weight or to wind pressure on the vertical surfaces; broadly : the forces to which a given object is subjected
MACHINE - (1) : an assemblage of parts that transmit forces, motion, and energy one to another in a predetermined manner (2) : an instrument (as a lever) designed to transmit or modify the application of power, force, or motion f : a mechanically, electrically, or electronically operated device for performing a task
MECHANICAL - 1 a (1) : of or relating to machinery or tools <mechanical applications of science> <a mechanical genius> <mechanical aptitude> (2) : produced or operated by a machine or tool <mechanical power> <a mechanical refrigerator> <a mechanical saw> b : of or relating to manual operations
2 : of or relating to artisans or machinists <the mechanical trades>
3 a : done as if by machine : seemingly uninfluenced by the mind or emotions : AUTOMATIC <her singing was cold and mechanical> b : of or relating to technicalities or petty matters
4 a : relating to, governed by, or in accordance with the principles of mechanics <mechanical work> <mechanical energy> b : relating to the quantitative relations of force and matter <mechanical pressure of wind on a tower>
5 : caused by, resulting from, or relating to a process that involves a purely physical as opposed to a chemical change <mechanical erosion of rock>
MECHANICS - 1 : a branch of physical science that deals with energy and forces and their effect on bodies
2 : the practical application of mechanics to the design, construction, or operation of machines or tools
3 : mechanical or functional details or procedure
MECHANISM - 1 a : a piece of machinery b : a process or technique for achieving a result
2 : mechanical operation or action 4 : the fundamental physical or chemical processes involved in or responsible for an action, reaction, or other natural phenomenon
MECHANISTIC - 1 : mechanically determined <mechanistic universe>
2 : of or relating to a mechanism or the doctrine of mechanism
3 : MECHANICAL
- mech·a·nis·ti·cal·ly – adverb
NEEDLE BEARING – A bearing which uses small cylinders of metal in place of metal balls. See also – Ball Bearing
NEWTON - the unit of force in the meter-kilogram-second system equal to the force required to impart an acceleration of one meter per second per second to a mass of one kilogram
OSCILLATION - Back and forth motion. A changing voltage, usually of regular interval.
POSITIVE DRIVE -
POTENTIAL ENERGY - the energy that a piece of matter has because of its position or because of the arrangement of parts.
POWER - 1 a (1) : ability to act or produce an effect, 6 a : a source or means of supplying energy; especially : ELECTRICITY
PULLEY - 1 : a sheave or small wheel with a grooved rim and with or without the block in which it runs used singly with a rope or chain to change the direction and point of application of a pulling force and in various combinations to increase the applied force especially for lifting weights
2 : a pulley or pulleys with ropes to form a tackle that constitutes one of the simple machines
3 : a wheel used to transmit power by means of a band, belt, cord, rope, or chain passing over its rim
related to wheel
PUSH-ROD – a rod used to transfer an action from one place to another. Usually a link without means of attachment on either end. Often used to transmit the motion provided by a cam to another element.
RECIPROCATING - back and forth, 2 : to move forward and backward alternately <a reciprocating valve>
RECTILINEAR - 1 : moving in or forming a straight line <rectilinear motion>
RESISTANCE (mechanical) - A force opposing or retarding an action, usually caused (or provided) by friction, gravity, springs, or ...
ROTARY - round and round
SCREW - 1 a : a simple machine of the inclined plane type consisting of a spirally grooved solid cylinder and a correspondingly grooved hollow cylinder into which it fits
SHAFT - 3 : d : a commonly cylindrical bar used to support rotating pieces or to transmit power or motion by rotation
SIMPLE MACHINE - : any of various elementary mechanisms formerly considered as the elements of which all machines are composed and including the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw
SLOP – The sloppiness of a mechanism. See BACKLASH.
SPRING - 4 : an elastic body or device that recovers its original shape when released after being distorted
STATICS - : mechanics dealing with the relations of forces that produce equilibrium among material bodies
TANG – A protrusion, often from a shaft where it is used to prevent rotation of an object attached to the shaft.
THREAD – Machine thread, etc.
TINKER - N. a person who repaired tools, pots, pans, etc. Often called a tinkerer.
V. To repair, putter, etc
TORQUE - 1 : a force that produces or tends to produce rotation or torsion <an automobile engine delivers torque to the drive shaft>; also : a measure of the effectiveness of such a force that consists of the product of the force and the perpendicular distance from the line of action of the force to the axis of rotation
2 : a turning or twisting force
TRIANGULATION – The general term for the state that a triangular gusset or structure provides to a larger structure, i.e. to prevent lozenging or parallelograming a polygonal frame will be divided into triangles to provide this strength.
WATT - the absolute meter-kilogram-second unit of power equal to the work done at the rate of one joule per second or to the power produced by a current of one ampere across a potential difference of one volt : 1/746 horsepower
WEDGE – 1 : a piece of a substance (as wood or iron) that tapers to a thin edge and is used for splitting wood and rocks, raising heavy bodies, or for tightening by being driven into something
see inclined plane
WHEEL - 1 : a circular frame of hard (or firm-ctp) material that may be solid, partly solid, or spoked and that is capable of turning on an axle, (or is coupled to an axle which turns in a bearing of some sort. – ctp)
WORK - c : the transference of energy that is produced by the motion of the point of application of a force and is measured by multiplying the force and the displacement of its point of application in the line of action
©2007 CTP Design & Creation
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