Calculate mechanical advantage, efficiency, power, torque, and lever systems. Perfect for mechanical engineering, physics, and machine design applications.
Comprehensive mechanical engineering calculations with detailed explanations
Calculate mechanical advantage and force multiplication
Calculate system efficiency and energy losses
Calculate power, torque, and rotational mechanics
Analyze lever systems and simple machines
Understanding mechanical engineering calculations and principles
Choose from mechanical advantage, efficiency, power & torque, or lever systems.
Input forces, distances, work, power, or torque values as required.
Receive mechanical advantage, efficiency, power, torque, and step-by-step calculations.
MA = Output Force / Input Force
η = (Output Work / Input Work) × 100%
P = Force × Velocity
T = Force × Radius
Common mechanical calculations and their practical applications
Result: MA = 2
Result: η = 80%
Result: MA = 50
Result: P = 750W
Common questions about mechanical engineering calculations
Mechanical advantage is the ratio of output force to input force in a machine. It tells you how much a machine multiplies the input force. MA = Output Force / Input Force.
Efficiency is calculated as the ratio of output work to input work, expressed as a percentage. η = (Output Work / Input Work) × 100%. It measures how much energy is lost in the system.
Torque is a rotational force (Force × Radius), while power is the rate of doing work (Force × Velocity or Torque × Angular Velocity). Power measures how fast work is done.
Levers work by balancing forces and distances. The mechanical advantage of a lever is the ratio of the distance from the fulcrum to the input force versus the distance to the output force.
Simple machines are basic mechanical devices that change the direction or magnitude of a force. They include levers, pulleys, wheels and axles, inclined planes, wedges, and screws.
Torque is calculated by multiplying the force applied by the perpendicular distance from the axis of rotation. T = Force × Radius. It's measured in Newton-meters (N·m).
In real machines, energy is conserved but some is lost to friction, heat, and other factors. The efficiency shows what percentage of input energy becomes useful output work.
Gears change the mechanical advantage by changing the speed and torque relationship. The gear ratio determines how much the input speed is reduced and torque is increased.
Ideal mechanical advantage ignores friction and assumes 100% efficiency. Actual mechanical advantage accounts for real-world losses and is always less than the ideal value.
To optimize mechanical systems, minimize friction, use appropriate materials, maintain proper lubrication, and design for the intended load and speed requirements.
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