blade tip clearance

简明释义

叶端余隙

英英释义

例句

1.The engineer measured the blade tip clearance to ensure optimal performance of the turbine.

工程师测量了叶片尖端间隙以确保涡轮的最佳性能。

2.A smaller blade tip clearance can lead to increased efficiency in gas turbines.

更小的叶片尖端间隙可以提高燃气涡轮的效率。

3.The design team focused on optimizing the blade tip clearance to enhance the engine's performance.

设计团队专注于优化叶片尖端间隙以提升发动机性能。

4.Adjusting the blade tip clearance is crucial for preventing blade damage during operation.

调整叶片尖端间隙对于防止操作期间叶片损坏至关重要。

5.During maintenance, we found that the blade tip clearance had increased beyond acceptable limits.

在维护过程中，我们发现叶片尖端间隙已超过可接受的范围。

作文

In the field of engineering, particularly in the design and analysis of rotating machinery, the term blade tip clearance refers to the small gap between the tips of the blades and the casing or other components surrounding them. This clearance is a critical parameter that can significantly affect the performance and efficiency of machines such as gas turbines, compressors, and fans. Understanding blade tip clearance is essential for engineers who aim to optimize the design and operation of these systems.The significance of blade tip clearance can be attributed to several factors. Firstly, it influences the aerodynamic performance of the blades. A properly designed clearance allows for optimal airflow around the blades, reducing drag and enhancing thrust or pressure generation. Conversely, if the clearance is too large, it can lead to a loss of efficiency due to increased leakage flows, where air bypasses the blades instead of passing through them. On the other hand, if the clearance is too small, it can result in contact between the blade tips and the casing, leading to wear, damage, or even catastrophic failure of the machine.Moreover, blade tip clearance affects the thermal performance of the system. In gas turbines, for instance, the temperature distribution around the blades is crucial for maintaining material integrity and ensuring longevity. An optimal clearance helps maintain a uniform temperature profile, preventing hot spots that could weaken the blades over time. Engineers must carefully consider thermal expansion and contraction when designing systems to ensure that the blade tip clearance remains within acceptable limits during operation.Another aspect to consider is the impact of blade tip clearance on noise and vibration levels. In many applications, especially in aviation and automotive contexts, excessive noise and vibrations can lead to discomfort and safety concerns. A well-calibrated clearance can help mitigate these issues by reducing turbulence and promoting smoother airflow.To achieve the ideal blade tip clearance, engineers often employ various techniques during the design and manufacturing processes. Advanced measurement tools and computational fluid dynamics simulations are commonly used to predict the effects of different clearance values on performance. Furthermore, materials and coatings may be selected to enhance durability and reduce wear, ensuring that the clearance does not diminish over time.In conclusion, the concept of blade tip clearance is fundamental in the realm of rotating machinery design. It plays a vital role in determining the efficiency, performance, and longevity of machines. Engineers must possess a thorough understanding of this parameter to create systems that operate effectively and reliably. As technology advances, ongoing research and development will continue to refine our understanding of blade tip clearance and its implications in various engineering applications. By focusing on this critical aspect, we can pave the way for more efficient and sustainable machinery in the future.

在工程领域，特别是在旋转机械的设计和分析中，术语刀片尖端间隙指的是刀片尖端与周围外壳或其他部件之间的小间隙。这个间隙是一个关键参数，可以显著影响气体涡轮、压缩机和风扇等机器的性能和效率。理解刀片尖端间隙对于旨在优化这些系统设计和操作的工程师至关重要。刀片尖端间隙的重要性可以归因于几个因素。首先，它影响刀片的气动性能。合理设计的间隙允许空气在刀片周围最佳流动，减少阻力并增强推力或压力生成。相反，如果间隙过大，可能会导致由于泄漏流动增加而效率下降，即空气绕过刀片而不是通过刀片流动。另一方面，如果间隙过小，可能导致刀片尖端与外壳接触，从而导致磨损、损坏甚至机器的灾难性故障。此外，刀片尖端间隙还影响系统的热性能。例如，在燃气涡轮中，刀片周围的温度分布对于保持材料完整性和确保长寿命至关重要。最佳间隙有助于保持均匀的温度分布，防止热点的形成，这些热点可能会随着时间的推移削弱刀片。工程师在设计系统时必须仔细考虑热膨胀和收缩，以确保在运行过程中刀片尖端间隙保持在可接受的范围内。另一个需要考虑的方面是刀片尖端间隙对噪声和振动水平的影响。在许多应用中，尤其是在航空和汽车背景下，过高的噪声和振动可能导致不适和安全隐患。经过良好校准的间隙可以通过减少湍流和促进更平稳的气流来帮助减轻这些问题。为了实现理想的刀片尖端间隙，工程师通常在设计和制造过程中采用各种技术。先进的测量工具和计算流体动力学模拟常用于预测不同间隙值对性能的影响。此外，可能选择特定的材料和涂层以增强耐用性并减少磨损，确保间隙不会随着时间的推移而减小。总之，刀片尖端间隙的概念在旋转机械设计领域至关重要。它在确定机器的效率、性能和寿命方面发挥着重要作用。工程师必须深入理解这一参数，以创造有效且可靠运行的系统。随着技术的发展，持续的研究和开发将继续深化我们对刀片尖端间隙及其在各种工程应用中的影响的理解。通过关注这一关键方面，我们可以为未来更高效和可持续的机械铺平道路。