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第 19 章

ねじれ

シャフト内の応力
シャフト内の応力
A shaft PQ is twisted when subjected to equal and opposite torques on either side. Consider a section perpendicular to the shaft's axis through an ...
円形シャフトの変形
円形シャフトの変形
A unique property of circular shafts is that under torsion, every cross-section remains plane and undistorted, rotating as a solid rigid slab. To ...
円形シャフト - 線形範囲の応力
円形シャフト - 線形範囲の応力
Consider a case when the torque applied to the circular shaft is within Hooke's law limit, so there is no permanent deformation. Now, recall the ...
ねじれ角 - 弾性範囲
ねじれ角 - 弾性範囲
Consider a circular shaft of length L and a uniform cross-section of radius r subjected to a torque at its free end. The maximum shearing strain in the ...
ねじれ角 – 問題解決
ねじれ角 – 問題解決
The electric motor exerts a 700 N-m torque on an aluminium shaft, causing it to rotate at a constant speed. Pulleys B and C experience torques of 300 N-m ...
トランスミッションシャフトの設計
トランスミッションシャフトの設計
The design specifications required for a transmission shaft are the power transmitted by the shaft and its rotation speed. Based on these specifications, ...
円形シャフトの応力集中
円形シャフトの応力集中
Recall the elastic torsion formula, applicable to a circular shaft with a uniform cross-section. Here, it is assumed that the shafts are loaded at their ...
円形シャフトの塑性変形
円形シャフトの塑性変形
When materials are subjected to stresses exceeding their yield strength, plastic deformation occurs, causing a permanent strain. In the case of circular ...
円形シャフト - 弾塑性材料
円形シャフト - 弾塑性材料
Within the elastic limit, the maximum stress in a solid circular shaft varies linearly with a radial distance from its axis. As the torque increases, the ...
円形シャフトの残留応力
円形シャフトの残留応力
In elastoplastic materials, residual stress can develop when the material undergoes plastic deformation due to high shearing stress or large strains. When ...
非円形部材のねじれ
非円形部材のねじれ
During torsional loading, the cross-sections of the circular shafts remain plane and undistorted since they are axis-symmetric. However, due to the lack ...
薄肉中空軸(薄肉中空シャフト)
薄肉中空軸(薄肉中空シャフト)
Consider a small portion of width 'dx' from a thin-walled hollow shaft of thickness 't' subjected to torsional loading. Since the portion ...
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