FABRICATED ROOF
Refers to the completed assembly of the roof inner
and outer panels, which is made in the
fabrication plant.
FABRICATED SIDE FRAME
Type of body frame around door and side window openings made from large
stampings rather than an assembly of parts, which is used in small cars.
FABRICATION IN TRANSIT
The stopping of steel products at a point located
between the points of origin and destination for further process of
manufacture. For example, steel beams
to be fabricated as bridge girders.
FACING MOVEMENT
The movement of a train over the points of a switch
which face in the direction of opposite to that end which the train is moving.
FACT
Information that corresponds to reality.
FACTOR
Any circumstance contributing to a result without
which the result could not have occurred; an element which is necessary to
produce the result, but not, by itself, sufficient; operational factor;
condition factors.
Factory Setting
Setup format containing the factory default values for ProDriver. ( Detroit )
FAIRING
FALL
A downward and onward movement in the air under the force of gravity after forward momentum carries an object beyond its supporting surface, rotation during a fall is gradual and the object usually lands right side up.
Fan On Time
Total Fan On Time is accumulated when either one (or both) of the digital fan outputs or the PWM fan output is active. Total Fan On Time is comprised of Fan Time (Engine). Fan Time (Manual) and Fan Time (Air Conditioning). ( Detroit )
Fan Time
Time accumulated when the fan was active because the (Air conditioning) air conditioning system triggered activation. ( Detroit )
Fan Time (Engine)
Time accumulated when the fan was active because the engine triggered activation. ( Detroit )
Fan Time (Manual)
Time accumulated when the fan was active because the operator used the manual switch. ( Detroit )
FASCIA
A styled elastomeric front or rear body panel which
usually includes the bumper and/or grille details.
FASTBACK
A roofline that slopes directly down toward or to
the rear bumper of a vehicle.
FATAL MOTOR VEHICLE TRAFFIC
An accident in which at least one person dies
within thirty days of the accident as a result of injuries sustained in the
accident.
FATALLY INJURED
A death caused by injuries sustained in a motor
vehicle accident and which occurs within 30 days of the accident.
FATIGUE
In referring to human activity, fatigue is the
reduction in muscular and mental capability owing to prolonged or strenuous
mental or physical activity. In
referring to the strength of metals, fatigue is the deterioration of the
metallic structure owing to repeated loading.
FEA
Finite Element Structural Analysis
FEEDING IN TRANSIT
The stopping of shipments of livestock, etc, at a
point located between the points of origin and destination to be fed and
watered.
FEMUR LOAD
The force transmitted axially through the upper
leg.
FENDER VAULT
The kinematics of the impacted pedestrian where the
pedestrian is positioned near either side of the vehicle at impact, the torso
and head pivot toward the hood, and the torso and head fall off the side of the
fender.
FESM
Front End Sheet Metal.
FIBERGLASS
1. Mole - a mold is generally the female taken from
the original clay model. 2. Cast - a cast is the male reproduction made from
such female molds. 3. Model - a model made with body panels, bumpers, etc.,
made of glass-fibered plastic.
FIELD SKETCH
A freehand map of the scene or site of an accident
showing certain features of the accident or road configuration, usually for the
purpose of recording measurements.
FIFTH WHEEL
The fifth wheel is the flat circular disk at the
point on the tractor of a tractor-trailer combination at which the trailer
hitch is secured. This disk supports
the weight of the front of the trailer
FILLET
Curved surface used to blend two intersecting
planes.
FINAL POSITION
The exact location of a vehicle or body after a
traffic accident
FINAL VELOCITY
(vf): The velocity at the conclusion of an event or
sequence of events.
FIRST CONTACT POINT
(FCP): The
exact point on a vehicle, pedestrian or other object touched in a collision or
the place on the road or ground closest to the first contact between colliding
objects. Sometimes referred to as Point
of Impact (POI).
FIRST HARMFUL EVENT
The first occurrence in a traffic accident that
results in appreciable damage or injury; the occurrence determining the time
and place of the accident; usually the first contact in impact.
FISH HOOK
A spear or arrowhead-shaped ending to a decorative
molding or paint stripe.
FISH PLATE
Plate attached to web of frame running along frame
length for the purpose of reinforcement.
FIVE POINT RESTRAINT
A lap belt, two shoulder belts, and a crotch strap.
FIXED COLLISION BARRIER
Filed collision barrier means a flat, vertical
unyielding surface with the following characteristics: (1)
The surface is sufficiently large that when struck by a tested vehicle,
no portion of the vehicle projects or passes beyond the surface. (2)
The approach is a horizontal surface that is large enough for the
vehicle to attain a stable attitude turning its approach to the barrier, that
does not restrict vehicle motion during impact. (3) When struck by a
vehicle, the surface and its supporting structure absorb no significant portion
of the vehicle's kinetic energy, so that a performance requirement described in
terms of impact with a collision
barrier must be met no matter how small an amount of energy is absorbed by the
barrier.
FIXED CONTROL
That mode of vehicle control wherein the position
of some point in the steering system (front wheels, Pitman arm, steering wheel)
is held fixed. This is a special case
of position control.
FIXED SIGNAL
A signal of fixed location indicating a condition
affecting the movement of a train or engine.
FLAG
A brakeman sent out to protect the rear of a train
making an unscheduled stop; also an assumed name.
FLAG STATION
A station at which trains only stop when signaled.
FLAME ARRESTER
Grid or closely spaced metal louvers which permit
air to flow into carburetor but quenches any flame backfiring from engine.
FLAMMABLE
Commodity which cn easily be ignited.
FLANGE
1 A rib or rim that provides strength, guidance or
a means of attachment to another object.
2) Car Wheel Flange - A projecting edge or rim on the circumference of
the wheel to keep it on the rail.
FLANGE YOKE
Yoke with circular flange matching end yoke on
driveshaft to make a universal joint.
FLAT CAR
An open car without sides, ends or top, used
principally for hauling lumber, stone, heavy machinery, etc.
FLAT TIRE MARK
A scuff mark made by an over deflected tire; a mark
made by a tire which is seriously under inflated or overloaded.
FLAT TIRE RADIUS
The distance from the spin axis to the road surface
of a loaded tire on a specified rim at zero inflation.
FLAT WHEEL
A car wheel that has flat spots on the tread.
Fleet Goal
User entered fleet fuel economy goal. ( Detroit )
Fleet Idle Goal
User entered fleet idle goal in percent of Trip Time ( Detroit )
Fleet Name
Fleet identification entered using the Preferences Menu. ( Detroit )
Fleet Time Zone
The Fleet Time Zone is the time zone of the analysis PC for the fleet, expressed as the number of hours offset from Greenwich Mean Time. For example, Eastern Standard Time is expressed as -5 hr. This time is used on the reports. It is set during installation and can be reset after installation through the Tools, Options menu. ( Detroit )
FLIP
A sudden upward and onward movement off the ground
when an object's horizontal movement is obstructed below its center of mass by
an obstacle on the surface supporting the object. Rotation during a flip is rapid and the object usually land
upside down. Sometimes called vault.
FLOAT BRIDGE
A bridge connecting car floats with rail landings.
FLOATAGE
1) The floating or transfer of railroad cars across
water. 2) Also the charge for such service.
FLOATING LOAD
A load in which the lading is prepared as a unit
space between unit and ends of car and end blocking omitted. The lengthwise movement of the lading over
the floor of the car permits the dissipating of impact shocks.
FLOATING MAINSHAFT
A heavy-duty central shaft and several gears that
turn freely when not engaged. It can move to allow for equalization of the
loading on the countershafts. When engaged, the floating main shaft transfers
torque evenly through its gears to the rest of the transmission and ultimately
to the rear axle.
FLOOR BOARDS
Footrest area for the motorcycle operator or
passenger mounted in lieu of footpegs.
FLOTATION
Ability to float generally referring to large
low-pressure tires.
FLO-THRU VENTILATION
Type of body ventilation where air enters at the
front of the passenger compartment and exits at the rear.
FLUSH GLASS
Refers to window opening design where the plane of
the glass is nearly the same as the plane of the body surface.
FLYING SWITCH OR DROP
Switching technique in which cars are cut off from
behind a moving locomotive and the switch opened after the engine has passed.
FMA
Failure Mode Analysis
FMEA
(Failure Mode and Effects Analysis) is an
analytical technique which used the potential failure modes of a design/process
and the causes to prioritize improvement opportunities.
FMVSS
Federal Motor Vehicle Safety Standards
FOG LINE
The solid white or yellow line that separates the
driving lanes from the shoulder area of the highway.
FOIL WELD
Method of welding light-gauge panels using disc
welding electrodes and a thin-gauge "foil" capping the joint to
provide filler material.
FOILED BRIGHT SURFACE
Bright aluminum foil applied over clay to simulate
chrome-plated areas.
FOOT BRAKE VALVE
Valve controlling the air pressure delivered to or
released from the axle brake chambers.
FOOTMAN'S LOOP
A swiveling, snap fit loop on top of the head
restraint which guides the shoulder belt.
FOOT-POUND
A foot-pound is a unit of measurement of work. It is equal to the work done by an applied
force of one pound when it moves a mass through a distance of one foot in the
direction of the force.
FOOTPRINT
The portion of the tread that is in contact with
the ground.
FORCE
(f): A push or pull on a body - a vector quantity.
FORCE CONTROL
That mode of vehicle control wherein inputs or
restraints are placed upon the steering system in the form of forces,
independent of the displacement required.
FORCE LINE
The force line is the direction of the resultant
force, which produces damage to the subject vehicle.
FORCED VIBRATION
Forced vibration of a system is vibration during
which variable forces outside the system determine the period of the vibration.
FOREIGN CAR OR TRAILER
A car or trailer belonging to a carrier other than
that by which it is being operated.
FORK
Attached to the steering head of the frame, the fork
connects the frame with the front axle by means of a set of tubes that straddle
the front wheel. The fork can be rigid or telescopic, with spring movement and
damping action built into each tube.
FORK TUBE
The upper fork component that connects the triple
clamp above and the slider tube below.
FORWARD FACING
A seat that is oriented so that its occupants faces
the front of the vehicle.
FORWARD PROJECTION
The kinematics of the impacted pedestrian where the
pedestrian hits the front face of the vehicle.
This typically occurs when the vehicle is braking prior to impact, with
full face vehicles such as cabover semi trucks, or with small children.
FORWARD VELOCITY
forward velocity
of a point in the vehicle is the component of the vector velocity
perpendicular to the y-axis and parallel to the road plane.
FOUR STROKE CYCLE
The four piston strokes of intake, compression,
power and exhaust. An engine with such
a cycle is also called a four-cycle or four-stroke engine.
FOUR-WHEELER
Reference to two-axle truck.
4-P FPV
Production Process Prove-Out Program Financial
Planning Volume
fpsps
Feet per second per second - the English unit of
acceleration or deceleration.
FRAME
The structure of a motorcycle that supports the
engine and occupants and provides attachment points for the rear wheel and
steering.
FREE CONTROL
That mode of vehicle control wherein no restraints
are placed upon the steering system.
This is a special case of force control.
FREE PLAY
(Steering system)
Free play is the motion of a point on the periphery of the steering
wheel between perceptible tire motion to the left and perceptible tire motion
to the right.
FREE TIME
The time allowed by the carriers for the loading or
unloading of freight after which demurrage or detention charges will accrue.
FREE VIBRATION
Free Vibration of a system is the vibration during
which no variable force is externally applied to the system.
FREE-ROLLING TIRE
A loaded rolling tire operated without application
of driving or braking torque.
FREIGHT AGENT
Carrier representatives with the public who prices
services performed based on approved tariffs.
FREIGHT BILL
Statement given customer of charges for
transportation. Information is taken
from way bill.
FREIGHT CHARGE
The charge assessed for transporting freight.
FREIGHT CLAIM
A demand upon a carrier for the payment of
overcharged, loss or damaged sustained by shipper or consignee.
FREIGHT FORWARDER
A person engaged in the business of shipping and
distributing less than car / trailer load freight.
FREIGHT HOUSE
The station facility of a transportation line for
receiving and delivering freight.
FREQUENCY
Frequency of vibration is the number of periods
occurring in unit time.
FREQUENCY RATIO
The ratio of exciting frequency to the natural
frequency.
FRICTION
Friction is the resistance to motion caused by
contact between two bodies. If two bodies are in contact, there is not any
friction between them unless an attempt is made to move the bodies relative to
one another then a friction force
develops between them which tends to impede the motion. The impediment to the motion may have two
forms: 1. The motion may be completely prevented because the friction force
prevents all motion. 2. The bodies may slide relative to one
another, but the friction force acts to oppose the motion, even though the
friction force is not terse enough to stop the motion.
FRICTION FORCE
Friction force is the force between two bodies in
contact which tends to oppose the relative motion of the bodies; (f):
A tangential force opposing the sliding of one surface across an
adjacent surface.
FRICTION MARK
A tire mark made when a slipping or sliding tire
rubs the road or other surface
FRISKET KNIFE
Knife with a razor-sharp blade, used for detail
work or to cut cardboard and paper. Originally designed to cut frisket
(masking) paper.
FROG
1) A track structure used at the intersection of
two running rails to provide support for wheels and passageways for their
flanges, thus permitting wheels on either rail to cross to the other. 2) An
implement for rerailing car wheels.
FRONT BODY HINGE PILLAR
A structural member on which the front door is
hung.
FRONT END BAR FIXTURE
Fixture is used to locate front end shroud upper in
body frame.
FRONT PASSENGERS ACRS
An air cushion restraint system used to protect
both the center and the right front seat occupants in a vehicle crash.
FRONTAGE ROAD
A roadway continuous to and generally paralleling
an expressway. Freeway, parkway, or
through street so designed so as to intercept, collect and distribute traffic
designating to cross, enter, or leave such facility and to furnish access to property
which other wise would be isolated as a result of the controlled access
features.
FUEL FILTER
Filtering or screening device for cleaning the
engine fuel.
Fuel Consumption
Trip Fuel divided by Trip Time. ( Detroit )
Fuel Economy
Trip Distance divided by Trip Fuel. ( Detroit )
Fuel Pressure
Pressure of the fuel measured after the secondary fuel filter. The sensor is only on certain engine models. ( Detroit )
An impact in which motion momentarily ceases
between some areas of the colliding objects while they are in contact with each
other. If the colliding objects do not
separate after collision, the impact is complete.
FULL INVESTIGATION
Any collision investigated by the team in which the
team investigations report will be the original report.
FULL SERVICE APPLICATION
An application of the brakes resulting from a
reduction in brake pipe pressure at a service rate until maximum brake cylinder
pressure is developed.
FULL-FLOATING AXLE
Axle shaft which transmits torque only and carries
no vehicle load.
FURROW
A ditch dug by a tire, wheel, or body part sliding
in a dirt or loose material surface.
FURROW IN
A deep depression at the end of a furrow where a
tire or other part of a vehicle stopped sliding. A "furrow in" often marks the beginning of a flip or
roll.
FUSEE
A red flare used for flagging purposes.
FWD
(Front-wheel drive) Engine and drive axle mounted at front end of chassis. (Not to be confused with four-wheel drive: 4WD)
References
Detroit Diesel
Caterpillar User's Manual