torsional stress

简明释义

扭转应力

英英释义

例句

1.The mechanical failure was attributed to excessive torsional stress 扭转应力 in the coupling.

机械故障归因于联轴器中的过度扭转应力 torsional stress。

2.The engineer calculated the torsional stress 扭转应力 on the shaft to ensure it could withstand the applied loads.

工程师计算了轴上的扭转应力 torsional stress，以确保它能够承受施加的负载。

3.During testing, the torsional stress 扭转应力 on the component exceeded the safety limits.

在测试过程中，组件上的扭转应力 torsional stress 超出了安全极限。

4.In a twisting motion, the material experienced significant torsional stress 扭转应力, leading to potential failure.

在扭转运动中，材料经历了显著的扭转应力 torsional stress，可能导致失效。

5.The design of the beam had to account for torsional stress 扭转应力 to prevent structural failure.

梁的设计必须考虑到扭转应力 torsional stress，以防止结构失效。

作文

Torsional stress is a critical concept in the field of engineering and mechanics, particularly when analyzing materials and structures subjected to twisting forces. When an object is subjected to a torque, or twisting force, it experiences a type of stress that is referred to as torsional stress (扭转应力). This stress is crucial for engineers to understand because it can lead to failure in materials if not properly accounted for in design and analysis.In simple terms, torsional stress occurs when a cylindrical object, such as a shaft, is twisted. Imagine a long, solid metal rod. If you were to apply a force to one end of the rod while holding the other end stationary, the rod would twist. This twisting creates internal forces within the rod, leading to torsional stress (扭转应力) throughout its length. The magnitude of this stress depends on several factors, including the amount of torque applied, the length of the rod, and its polar moment of inertia, which is a measure of how the mass is distributed relative to the axis of rotation.Understanding torsional stress (扭转应力) is essential for ensuring the safety and reliability of mechanical systems. For instance, in automotive engineering, drive shafts must be designed to withstand significant torsional stress (扭转应力) during operation. If a drive shaft fails due to excessive twisting forces, it can lead to catastrophic failure of the vehicle's drivetrain, resulting in accidents and costly repairs.To calculate torsional stress (扭转应力), engineers often use the formula: τ = T/J, where τ represents the shear stress (shear being a component of torsional stress (扭转应力)), T is the applied torque, and J is the polar moment of inertia. This formula allows engineers to predict how much torsional stress (扭转应力) a material can withstand before yielding or failing. By using this information, they can select appropriate materials and design components that can safely handle the expected loads.Moreover, engineers also consider factors such as fatigue when analyzing torsional stress (扭转应力). Repeated twisting cycles can weaken materials over time, even if the maximum torsional stress (扭转应力) experienced by the material is below its yield strength. This phenomenon is known as fatigue failure, and it is a significant concern in applications like rotating machinery, where components are subjected to continuous twisting.In conclusion, torsional stress (扭转应力) plays a vital role in the design and analysis of mechanical systems. Understanding this concept helps engineers create safer and more reliable structures and components. Whether in automotive, aerospace, or civil engineering, considering torsional stress (扭转应力) ensures that materials can withstand the forces they encounter in real-world applications, ultimately leading to improved performance and safety in engineering designs.

扭转应力是工程和力学领域中的一个关键概念，特别是在分析受扭转力作用的材料和结构时。当一个物体受到扭矩或扭转力时，它会经历一种被称为扭转应力（torsional stress）的应力。这种应力对于工程师来说至关重要，因为如果在设计和分析中没有合理考虑，它可能会导致材料的失效。简单来说，扭转应力（torsional stress）发生在圆柱形物体（如轴）被扭转时。想象一下一个长长的实心金属杆。如果你在杆的一端施加力量，同时固定住另一端，杆就会扭转。这种扭转在杆内部产生了内力，从而导致其整个长度上出现扭转应力（扭转应力）。这种应力的大小取决于几个因素，包括施加的扭矩、杆的长度以及其极惯性矩，后者是指相对于旋转轴的质量分布的度量。理解扭转应力（扭转应力）对于确保机械系统的安全性和可靠性至关重要。例如，在汽车工程中，传动轴必须设计成能够承受显著的扭转应力（扭转应力）在运行过程中。如果由于过大的扭转力而导致传动轴失效，可能会导致车辆动力系统的灾难性故障，进而引发事故和昂贵的维修费用。为了计算扭转应力（扭转应力），工程师通常使用公式：τ = T/J，其中τ表示剪切应力（剪切是扭转应力（扭转应力）的一个组成部分），T是施加的扭矩，而J是极惯性矩。这个公式使工程师能够预测材料在屈服或失效之前能承受多少扭转应力（扭转应力）。通过使用这些信息，他们可以选择适当的材料并设计出能够安全处理预期载荷的组件。此外，工程师在分析扭转应力（扭转应力）时还考虑疲劳等因素。重复的扭转循环可能会随着时间的推移削弱材料，即使材料所经历的最大扭转应力（扭转应力）低于其屈服强度。这种现象被称为疲劳失效，在旋转机械等应用中是一个重要问题，因为这些组件受到持续的扭转作用。总之，扭转应力（扭转应力）在机械系统的设计和分析中发挥着至关重要的作用。理解这一概念有助于工程师创建更安全、更可靠的结构和组件。无论是在汽车、航空航天还是土木工程中，考虑扭转应力（扭转应力）确保材料能够承受它们在实际应用中遇到的力量，最终导致工程设计的性能和安全性的提高。