dynamic balance

Thân thiện

A technician checks the dynamic balance of an airplane propeller.

Definition

Noun: 1. A state of equilibrium in a rotating system: A condition where the centrifugal forces generated by a rotating mass (such as a wheel, propeller, or turbine) are balanced, preventing the creation of net forces or vibrations in the supporting shaft or structure. 2. (Aeronautics/Engineering): Specifically, the state achieved when a rotating component is balanced while in motion, as opposed to when it is stationary (static balance). This is crucial for smooth operation and reduced wear.

Usage

• General/Technical Context: Used to describe the desired state of a rotating mechanical part to ensure smooth, vibration-free operation.
• Aeronautics Context: Commonly used regarding aircraft components like propellers, turbines, and rotors.

Examples

• Noun:
  • The mechanic checked the dynamic balance of the aircraft's propeller to eliminate vibrations during flight.
  • Achieving perfect dynamic balance is essential for the longevity of high-speed machinery.
  • The vibration was caused by a loss of dynamic balance in the engine's crankshaft.

Advanced Usage

• "To be in dynamic balance": Describes a system that is currently in this balanced state.
  • After the repair, the rotor was finally in dynamic balance.
• "To achieve/maintain dynamic balance": Refers to the process of attaining or preserving this equilibrium.
  • Specialized equipment is used to achieve dynamic balance in industrial fans.

Variants and Related Words

• Dynamic balancing (n): The process or technique of achieving dynamic balance.
  • The workshop offers dynamic balancing services for all types of motors.
• Static balance (n): A state of balance measured while an object is stationary, often contrasted with dynamic balance.
  • The wheel had static balance, but it vibrated at high speed because it lacked dynamic balance.

Synonyms

• Rotational equilibrium: A more general physics term for a state where the net torque on a rotating body is zero.
• Force balance: (In this specific rotational context) Can imply the balancing of centrifugal forces.

Antonyms

• Imbalance: The state of being unbalanced.
• Dynamic imbalance: The specific condition where a rotating part is not in dynamic balance, causing vibration.

Học thuật

Noun

1. (aeronautics) the state of equilibrium in which centrifugal forces due to a rotating mass (e.g., a propeller) do not produce force in the shaft and so vibration is reduced