trục quay
Definition
- Noun:
- Axis of rotation: The straight, imaginary line around which an object rotates or spins. All points on the rotating object move in circles around this fixed line.
- Shaft: A mechanical component, often a cylindrical rod, that is designed to rotate and transmit power or motion in a machine (e.g., an engine shaft, a drive shaft).
Usage Examples
- Noun:
- Trái Đất quay quanh một trục quay nghiêng. (The Earth rotates around a tilted axis.)
- Hãy vẽ trục quay của hình tròn này. (Draw the axis of rotation for this circle.)
- Trục quay của động cơ bị hỏng. (The engine's shaft is broken.)
- Nó là một trục quay truyền lực từ động cơ đến bánh xe. (It is a drive shaft that transmits power from the engine to the wheels.)
Advanced Usage
- In physics and engineering, the axis of rotation is a fundamental concept for calculating rotational motion, torque, and angular momentum.
- In machinery, the design and material of a shaft are critical for its strength, speed, and load-bearing capacity.
Variants and Related Words
- Trục (n): axis, shaft, spindle. A more general term for an axis or a rotating rod.
- Trục chính (n): main shaft, principal axis.
- Trục cam (n): camshaft.
- Trục khuỷu (n): crankshaft.
- Trục lái (n): steering column.
Synonyms
- Axis: A straight central line.
- Shaft: A rotating rod in a machine.
- Spindle: A slender rotating rod, often in tools or machinery.
- Pivot: A central point of rotation.
Related Technical Terms
- Moment quán tính: Moment of inertia (resistance to rotational acceleration around an axis).
- Tốc độ quay: Rotational speed.
- Ổ trục / Vòng bi: Bearing (a component that supports a shaft and reduces friction).