neck journal

简明释义

轴颈

英英释义

例句

1.The neck journal is perfect for capturing spontaneous moments in life.

这个颈部日记非常适合捕捉生活中的即兴时刻。

2.She carries her neck journal everywhere to jot down her thoughts.

她随身携带着她的颈部日记，以便随时记录自己的想法。

3.During our hiking trip, I filled several pages in my neck journal with observations about nature.

在我们的徒步旅行中，我在我的颈部日记中写下了几页关于自然的观察。

4.I often reflect on my goals in my neck journal each morning.

我经常在早晨反思我的目标，写在我的颈部日记中。

5.After a long day at work, I like to unwind by writing in my neck journal.

在工作了一整天后，我喜欢通过写我的颈部日记来放松。

作文

In the world of mechanical engineering, precision is paramount. One key component that engineers often discuss is the bearing surface known as the neck journal. The neck journal refers to the part of a shaft that rotates within a bearing and provides support for the rotating element. This component is crucial in various machines, including engines, turbines, and other rotating equipment. Understanding the role and importance of the neck journal can greatly enhance our comprehension of mechanical systems.The neck journal is designed to minimize friction between moving parts, allowing for smooth operation and increased efficiency. When a shaft rotates, it generates heat due to friction. If the neck journal is not properly designed or maintained, it can lead to excessive wear and tear, resulting in mechanical failure. Therefore, engineers must consider factors such as material selection, lubrication, and surface finish when designing a neck journal.One of the most common materials used for neck journals is steel, due to its strength and durability. However, advancements in material science have introduced alternatives, such as composite materials that offer lighter weight and improved resistance to wear. The choice of material can significantly influence the performance and lifespan of the neck journal.Lubrication plays a vital role in the functioning of the neck journal. Proper lubrication reduces friction and heat generation, which in turn minimizes wear. Engineers often use oil or grease to lubricate the neck journal, ensuring that the bearing surfaces remain well-protected. The type of lubricant chosen can depend on the operating conditions, such as temperature and load.In addition to material and lubrication, the design of the neck journal itself is critical. The geometry of the neck journal affects how forces are distributed across the bearing surface. A well-designed neck journal can help distribute loads evenly, reducing the risk of localized stress points that can lead to failure. Engineers often use computer-aided design (CAD) software to model and simulate the performance of the neck journal before manufacturing.Regular maintenance is also essential to ensure the longevity of the neck journal. Inspections should be performed to check for signs of wear, such as scoring or pitting on the surface. If wear is detected early, corrective actions can be taken, such as re-lubrication or replacement, to prevent catastrophic failures.In conclusion, the neck journal is a vital component in many mechanical systems, playing a crucial role in supporting rotating shafts and minimizing friction. Understanding its design, material properties, lubrication requirements, and maintenance practices can lead to more efficient and reliable machinery. As technology continues to advance, the study of components like the neck journal will remain essential for engineers striving to create innovative and durable machines.

在机械工程的世界中，精确性至关重要。工程师们经常讨论的一个关键组件是被称为颈轴承的支撑面。颈轴承指的是旋转轴的一部分，它在轴承内旋转，并为旋转元件提供支撑。这个组件在各种机器中都是至关重要的，包括发动机、涡轮机和其他旋转设备。理解颈轴承的作用和重要性可以大大增强我们对机械系统的理解。颈轴承的设计旨在最小化运动部件之间的摩擦，从而实现平稳操作和提高效率。当轴旋转时，由于摩擦会产生热量。如果颈轴承设计或维护不当，可能会导致过度磨损，最终导致机械故障。因此，工程师在设计颈轴承时必须考虑材料选择、润滑和表面光洁度等因素。用于颈轴承的最常见材料之一是钢，因为它具有强度和耐用性。然而，材料科学的进步引入了替代品，例如复合材料，这些材料提供了更轻的重量和更好的耐磨性。材料的选择可以显著影响颈轴承的性能和寿命。润滑在颈轴承的功能中起着至关重要的作用。适当的润滑减少了摩擦和热量产生，从而最小化磨损。工程师通常使用油或润滑脂来润滑颈轴承，确保承载表面得到良好的保护。所选择的润滑剂类型可能取决于操作条件，例如温度和负载。除了材料和润滑之外，颈轴承本身的设计也至关重要。颈轴承的几何形状影响着力在承载表面上的分布。设计良好的颈轴承可以帮助均匀分配负载，减少局部应力点的风险，从而防止故障。工程师通常使用计算机辅助设计（CAD）软件来建模和模拟颈轴承的性能，然后再进行制造。定期维护对于确保颈轴承的长期使用也是必不可少的。应定期检查以查看是否有磨损的迹象，例如表面的划痕或凹坑。如果早期发现磨损，可以采取纠正措施，例如重新润滑或更换，以防止灾难性故障。总之，颈轴承是许多机械系统中的重要组成部分，在支撑旋转轴和最小化摩擦方面发挥着关键作用。了解其设计、材料特性、润滑要求和维护实践可以导致更高效和可靠的机械设备。随着技术的不断进步，对颈轴承等组件的研究将继续成为工程师创造创新和耐用机器的关键。