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Which of the following is the inversion of a double slider-crank chain mechanism ?

Which of the following is the inversion of a double slider-crank chain mechanism ? Correct Answer Scotch Yoke Mechanism

Explanation:

Mechanism and Inversion:

  • When one of the links of a kinematic chain is fixed, the chain is known as a mechanism.
  • A mechanism with four links is known as a simple mechanism, and the mechanism with more than four links is known as a compound mechanism.
  • We can obtain as many mechanisms as the number of links in the kinematic chain by fixing, in turn, different links in a kinematic chain.
  • This method of obtaining different mechanisms by fixing different links in a kinematic chain is known as the inversion of a mechanism.

 

INVERSION

Four Bar Chain Mechanism
  • Beam Engine (crank and lever mechanism)
  • Coupling rod of a locomotive (double crank mechanism)
  • Watt’s Indicator (Double lever mechanism)

Single Slider Crank Mechanism
  • First Inversion
    • Reciprocating engine or compressor.
  • Second Inversion
    • Whitworth quick return mechanism, Rotary engine etc.
  • Third Inversion
    • Slotted crank mechanism, Oscillatory engine.
  • Fourth Inversion
    • Hand pump, Pendulum pump or Bull engine.

Double Slider Crank Mechanism
  • Elliptical trammels
  • Scotch yoke mechanism
  • Oldham’s coupling

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