Articles Posted in the " Springs " Category

  • LAMINATED SPRINGS

    LAMINATED SPRINGS

     LAMINATED SPRINGS Introduction This type of spring is very common in use. It has an There is an advantage over the coiled spring. It  acts as a structural member in addition it absorbs a shock. It is used in cars, trucks, buses and trains. This type of spring is made from a number of plates […]


  • Flat Spiral spring

    Flat Spiral spring

    Flat Spiral spring This spring stores energy in it. Thus, it is used in watches, toys, wall clocks, galvanometers. Further, it is also used in  steering wheels and balancing springs for smaller angles of rotation. Recently these are being replaced by pencil cells in the watches and toys.These are used in compact spaces. Spiral springs are shaped […]


  • OPEN COILED HELICAL SPRING – AXIAL COUPLE

    OPEN COILED HELICAL SPRING – AXIAL COUPLE

    OPEN COILED HELICAL SPRING – AXIAL COUPLE Let M be the couple applied to the spring. The applied couple tends to open the spring more. Or decrease the number of turns in the spring. The bending moment if increases the radius of curvature then it is called positive couple.When the applied couple tends to decrease the […]


  • OPEN COILED HELICAL SPRING – AXIAL LOAD

    OPEN COILED HELICAL SPRING – AXIAL LOAD

     OPEN COILED HELICAL SPRING- Axial Load (a) ONLY UNDER AXIAL LOAD   Spring will be under both bending and torsion. Let α be the angle of the helix Then the length of n turns of spring L =πDn/cos α Consider a section of the spring[as shown in Fig.(c)]passing through the axis of the helix and perpendicular […]


  • CLOSE COILED HELICAL SPRING

    CLOSE COILED HELICAL SPRING

     Close coiled helical spring This spring is subjected to either axial load or axial couple. The parameters to be studied in springs are stress, stiffness and resilience. Symbols used Do= outer  coil diameter Di= inside coil diameter Dm=  mean coil diameter = D d=diameter of wire na = number of active turns (circles) in the […]


  • SPRINGS-2

    SPRINGS-2

    SPRINGS-2 IMPORTANT  FEATURES OF A SPRING A single spring can perform more than one function. A spring is used to keep a component to bear against a surface. It helps to maintain a contact with a surface. It can engage or disengage a device as in a thermostat for making the operation automatic. Springs are […]


  • SPRINGS-1

    SPRINGS-1

    SPRINGS-1 Springs are elastic objects which are subjected to axial load, eccentric load and twisting moments. These are elastically significantly deformed  under the action of a force or a couple or both. These regain their original size and form on removal of force or couple or both. These store and release energy when required. These […]


  • INTERVIEW SHORT QUESTION ANSWERS-SPRINGS  222

    INTERVIEW SHORT QUESTION ANSWERS-SPRINGS 222

     INTERVIEW SHORT QUESTION ANSWERS -SPRINGS Keywords:Close coiled and Open coiled springs-Neutral axis   8. What is the difference between Close coiled and Open coiled springs? Closed Coiled Helical Spring The wire of this spring is in tension and hence also called a tension spring. In this case, the torsional shear stress is extremely high. Distance […]


  • Mcq: Springs

    Mcq: Springs

    Mcq:  Springs Leaf springs are used in (a) Scooters (b) Bikes (c) Trucks (d) None (Ans: c) Leaf springs use (a) All full length leaves (b) All leaves of different lengths (c) Few full length leaves with truncated leaves (d) None (Ans:c) Leaf springs are designed on the basis of (a) Maximum bending stresses (b) […]


  • mcqs: Springs

    mcqs: Springs

    mcqs: Springs A spring is designed for (a) Higher strength (b) Higher deflection (c) Higher stiffness (d) None (Ans: b)   A carriage spring is designed on the basis of (a) Shear (b) Compression (c) Bending (d) None (Ans: c) A closed helical spring under axial load is designed on the basis of (a) Shear […]