Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
work, power, and energy
Fluid Power Priniciples and Hydraulic Pumps - Hydraulics and Pneumatics
Whenever a force acts on a body and the body undergoes a displacement in the direction of the force, then work is said to be done.
WORK, POWER, AND ENERGY • Definition: Whenever a force acts on a body and the body undergoes a displacement in the direction of the force, then work is said to be done. • Formula: Work done = Force × Distance moved ... (3.6) • Units: newton-metre (N-m). 1 N-m = 1 J • Dimensions: ML2T-2 • Definition: Power is the rate of doing work or work done per unit time. • Formula: Power = Work done/Time taken …. (3.7) • Units: newton metre per second (N-m/s). 1 Watt = 1 J/s 1 N-m/s. • Dimensions: ML2T-3 • Definition: Energy may be defined as the capacity to do work. • The energy exists in many forms e.g., potential energy, pressure energy, kinetic energy, thermal energy, etc. • Units: newton-metre (N-m). 1 Joule = 1 N-m. • Dimensions: ML2T-2 Note 1. Torque: Torque is the moment created by the force (F) at the joint at the distance (d). ⸫ Torque, T = F.d ...(3.8) We can leverage this effect and produce more torque with the same force by applying at a longer distance. 2. The amount of power transmitted by a shaft can be given by, 3. Efficiency: Efficiency is defined as output power divided by input power.1. Work
2. Power
3. Energy
Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps : Tag: : Fluid Power Priniciples and Hydraulic Pumps - Hydraulics and Pneumatics - work, power, and energy
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Hydraulics and Pneumatics
ME3492 4th semester Mechanical Dept | 2021 Regulation | 4th Semester Mechanical Dept 2021 Regulation