Articles Posted in the " Theory of Machines " Category


  • ** Difference Between A Flywheel And A Governor

    ** Difference Between A Flywheel And A Governor

    Difference Between A Flywheel And A Governor   Sr. No. Flywheel Governor 1. Maintains constant speed but the means is different from that of Governor. Stores excess of rotational energy from the power stroke and supply back during non- power strokes of the cycle Maintains constant speed but the means is different from that of […]




  • * Power Transmission and Flat Belt Drive Analysis

    * Power Transmission and Flat Belt Drive Analysis

    Power Transmission and Flat Belt Drive Analysis POWER TRANSMISSION The power is transmitted from one shaft to the another shaft by a belt, chain and gear drive. The belts and ropes are used where distance between the two shafts is large. The chains are used for intermediate distances. The gears are used for shorter distance […]



  • * Unbalancing, balancing and the methods of balancing

    * Unbalancing, balancing and the methods of balancing

     Unbalancing, balancing and the methods of balancing UNBALANCING Unbalancing means There are only unbalanced forces: These cause static unbalance (where the mass axis is displaced  only parallel to the shaft axis) . There are only unbalanced couples: These cause rotary unbalance. There are unbalanced forces as well as unbalanced couples: These cause static as well as […]


  • * Unbalancing of Rotors—–2—–Balance Tolerance, Symbol and magnitude of Unbalancing

    * Unbalancing of Rotors—–2—–Balance Tolerance, Symbol and magnitude of Unbalancing

    Unbalancing of Rotors—–2—–Balance Tolerance, Symbol and magnitude of Unbalancing BALANCE QUALITY OR BALANCE TOLERANCE OR HOW MUCH OF AN UNBALANCE IS ACCEPTABLE  ANSI (AMERICAN NATIONAL STANDARDS INSTITUTE) gives the answer to the above question. Standard for Balance Quality of Rotating Rigid Bodies is ANSI S2.19-1975. These standards make recommendations to the permissible residual unbalance as […]


  • *Force, Unbalanced and Balanced forces and their effects , Unbalancing of Rotors—1

    *Force, Unbalanced and Balanced forces and their effects , Unbalancing of Rotors—1

    Force, Unbalanced and Balanced forces and their effects, , Unbalancing of Rotors—1  FORCES There are many different types of forces which act on objects. When Forces act in pairs but these are either balanced or unbalanced. BALANCED FORCE Balanced forces do not cause change in motion (magnitude and direction of velocity/acceleration). They are equal in […]


  • * Degrees of Freedom—-2—— For a Mechanism of Interconnected Bodies

    * Degrees of Freedom—-2—— For a Mechanism of Interconnected Bodies

    Degrees of Freedom—2—— For a Mechanism of Interconnected Bodies DYNAMIC SYSTEM OF INTERCONNECTED BODIES (Can have any number of degrees of freedom) A dynamic system with several interconnected bodies would have combined degrees of freedom (DOF). It will be the sum of the DOF of the individual bodies, less the internal constraints these have among […]