overhung crank

简明释义

外伸曲柄

英英释义

例句

1.Due to the overhung crank, the machine's weight distribution is significantly altered.

由于悬臂曲轴，机器的重量分布发生了显著变化。

2.The mechanics had to adjust the overhung crank to reduce vibrations during operation.

机械师需要调整悬臂曲轴以减少操作时的振动。

3.In a typical setup, the overhung crank can improve the efficiency of power transmission.

在典型的设置中，悬臂曲轴可以提高动力传输的效率。

4.The design of the engine features an overhung crank which allows for more compact dimensions.

这款发动机的设计采用了悬臂曲轴，使得尺寸更加紧凑。

5.An overhung crank is often used in applications where space is limited.

在空间有限的应用中，通常使用悬臂曲轴。

作文

The concept of the overhung crank is crucial in mechanical engineering, particularly in the design and functionality of various machines. An overhung crank refers to a type of crankshaft that extends beyond its support or bearing, which can significantly influence the performance and efficiency of an engine or machine. This design feature is often employed in internal combustion engines and reciprocating pumps, where the crank must convert rotational motion into linear motion effectively.When designing an engine, engineers must consider the implications of using an overhung crank. One of the primary advantages of this design is that it allows for a more compact engine layout. Since the crank extends beyond the bearings, it can reduce the overall length of the engine, making it lighter and easier to fit into smaller spaces. This is particularly beneficial in applications such as automotive engineering, where space and weight are critical factors.However, the use of an overhung crank also presents several challenges. The extended portion of the crank is subject to higher bending moments, which can lead to increased stress and potential failure if not properly designed. Engineers must ensure that the materials used can withstand these stresses and that the crank is adequately supported to prevent excessive vibration and wear.Another consideration is the dynamic balance of the engine. An overhung crank can lead to imbalances that may cause vibrations during operation. To mitigate this, engineers often employ counterweights or design the crank in such a way that minimizes these effects. Proper balancing is essential to ensure smooth operation and longevity of the engine components.In addition to mechanical aspects, the overhung crank also has implications for maintenance and repair. Because the crank extends beyond its support, accessing certain parts of the engine can be more challenging. Mechanics must be trained to handle these specific designs to perform repairs efficiently. This can lead to increased labor costs and longer downtime for machinery, which is a significant factor in industrial applications.Overall, the overhung crank is a fascinating topic that illustrates the balance between innovation and practicality in engineering. Its unique design allows for compactness and efficiency, but it also requires careful consideration of material properties, dynamic balance, and maintenance challenges. As technology continues to advance, the applications and designs of overhung cranks will likely evolve, leading to even more efficient and effective machinery. Understanding this concept is essential for aspiring engineers and those interested in the mechanics of motion, as it highlights the intricate relationship between design choices and performance outcomes in mechanical systems.

“overhung crank”（悬臂曲轴）的概念在机械工程中至关重要，特别是在各种机器的设计和功能中。“overhung crank”指的是一种曲轴，它超出其支撑或轴承，这可能会显著影响发动机或机器的性能和效率。这种设计特征通常用于内燃机和往复泵中，其中曲轴必须有效地将旋转运动转换为线性运动。在设计发动机时，工程师必须考虑使用“overhung crank”的影响。这种设计的主要优点之一是它允许更紧凑的发动机布局。由于曲轴超出轴承，它可以减少发动机的整体长度，使其更轻便，更易于放入较小的空间。这在汽车工程等应用中尤为有利，因为空间和重量是关键因素。然而，使用“overhung crank”也带来了几个挑战。曲轴的延伸部分受到更高的弯矩，这可能导致增加的应力和潜在的故障，如果设计不当。工程师必须确保所用材料能够承受这些应力，并且曲轴得到充分支持，以防止过度振动和磨损。另一个考虑因素是发动机的动态平衡。“overhung crank”可能导致不平衡，这可能在操作过程中引起振动。为了减轻这一问题，工程师通常会采用平衡重，或以尽量减少这些影响的方式设计曲轴。适当的平衡对于确保平稳运行和发动机部件的耐用性至关重要。除了机械方面，“overhung crank”还对维护和修理产生了影响。由于曲轴超出其支撑，访问发动机的某些部件可能更加困难。技工必须经过培训，以处理这些特定设计，以高效地进行维修。这可能导致增加的人工成本和更长的机械停机时间，这是工业应用中的一个重要因素。总的来说，“overhung crank”是一个引人入胜的话题，说明了工程中创新与实用之间的平衡。其独特的设计允许紧凑性和效率，但也需要仔细考虑材料特性、动态平衡和维护挑战。随着技术的不断进步，“overhung crank”的应用和设计可能会演变为更高效、更有效的机械。理解这个概念对有志于成为工程师和对运动力学感兴趣的人来说至关重要，因为它突显了设计选择与机械系统性能结果之间的复杂关系。