MODULE 7 Flashcards
(22 cards)
is defined as an elastic body, whose function is to distort when loaded and recover its original shape when the load is removed.
Spring
What are the different types of spring?
helical springs,conical and volute springs, torsion springs, laminated or leaf springs, disc or belleville springs, helical compression springs,
are made up of a wire coiled in the form of a helix are primarily intended for compressive or tensile loads
Helical Springs
What are the two forms of helical springs?
Compression Helical Spring and Tension Helical Spring
This are the type of springs that are used in special applications where a telescoping spring or a spring with spring rate that increases with the load is desired.
The conical and volute springs
The ______ spring is wound with a uniform pitch .
conical spring
The ______ springs are would in the form of paraboloid with constant pitch and led angles.
Volute
These springs may be of helical or spiral type.
Torsion Springs
The _______ type maybe used only in applications where the load tends to wind up the spring and are used in various electrical mechanisms.
helical type
The ____ type is used where the load tends to increase the number of coils and when made of flat strip are used in watches and clocks.
Torsion Springs
It is also known as flat spring or carriage spring
laminated or leaf spring
This spring consists of number of flat plates of varying lengths held together by means of clamps and bolts.
The laminated or leaf spring
These springs are mostly used in automobiles.
Laminated or Leaf Springs
These springs consist of a number of conical discs held together against slipping by a central bolt or tube.
Disc or Belleville Springs
These springs are used in applications where high spring rates and compact spring units are required.
Disc or Belleville Springs
What are the terms used in Compression Spring?
Solid length, free length, Pitch, Spring Index, Spring Rate or Spring Constant
When the compression spring is compressed until the coils come in contact with each other, then the spring is said to be _____.
Solid Length
The ___ of a compression spring is the length of the spring in free or unloaded condition.
Free Length
It is equal to the solid length plus the maximum deflection or compression of the spring and the clearance between the adjacent coils(when fully compressed).
Free Length
The _____of the coil is defined as the axial distance between adjacent coils in uncompressed state.
Pitch
The _________ in defined as the ratio of the mean diameter of the coil to the diameter of the wire
spring index
