English Dictionary

moment of inertia

名詞

(physics, classical mechanics) A measure of a rigid body's resistance to change in its angular velocity around a given axis.

日本語の意味

慣性モーメント：剛体が特定の軸周りにおいて、その角速度の変化に対する抵抗力を示す物理量。

When designing the flywheel, engineers carefully calculated the moment of inertia to ensure stable rotational behavior.

フライホイールを設計する際、技術者は安定した回転挙動を確保するために慣性モーメントを注意深く算出した。

意味（1）

(physics, classical mechanics) A measure of a rigid body's resistance to change in its angular velocity around a given axis.

The moment of inertia of a rigid body is a quantity that determines the torque needed for a desired angular acceleration about a given rotational axis, in close analogy to the way mass determines the force needed for a desired acceleration.

意味（2）

(engineering, structural engineering) Second moment of area; a measure of a rigid body's resistance to bending.

Stresses due to vertical shearing forces also depend on moment of inertia and are discussed in Chapter 8. Some mathematicians and stress analysts use the term second moment of area instead of moment of inertia. That term is, in fact, more descriptive of the definition of this property in the following discussion.

moments of inertia （ plural ）