flutter calculation

简明释义

颤振计算

英英释义

例句

1.The team used advanced software to conduct the flutter calculation for the new drone model.

团队使用先进的软件对新无人机模型进行了颤振计算。

2.In aerospace engineering, flutter calculation is crucial for ensuring safety during flight.

在航空航天工程中，颤振计算对于确保飞行安全至关重要。

3.The engineer performed a flutter calculation to determine the stability of the aircraft at high speeds.

工程师进行了颤振计算以确定飞机在高速下的稳定性。

4.Before the final design was approved, a thorough flutter calculation was necessary.

在最终设计获得批准之前，必须进行彻底的颤振计算。

5.The results of the flutter calculation indicated potential issues with the wing structure.

颤振计算的结果表明机翼结构可能存在问题。

作文

In the field of engineering and aerodynamics, the term flutter calculation is crucial for ensuring the safety and performance of various structures, particularly in aviation. Flutter is a dynamic instability that occurs when aerodynamic forces interact with structural stiffness and inertia, leading to potentially catastrophic oscillations. Understanding and predicting these oscillations through flutter calculation is vital for the design of aircraft wings, control surfaces, and other components that are subject to airflow during flight.When engineers conduct flutter calculation, they typically use advanced mathematical models and simulations to analyze how different materials and shapes respond to aerodynamic forces. This process involves determining the natural frequencies of the structure and comparing them with the frequencies of the aerodynamic forces acting on it. If the frequencies align, a resonance condition can occur, resulting in flutter. Therefore, engineers must carefully consider factors such as material properties, geometric configurations, and operating conditions to mitigate the risk of flutter.The significance of flutter calculation extends beyond just aircraft design. It also plays a crucial role in the development of bridges, tall buildings, and even wind turbines. For instance, a bridge may experience flutter due to strong winds, which can lead to dangerous vibrations and structural failure. By performing flutter calculation, engineers can identify potential issues and implement design modifications to enhance stability and safety.In recent years, advancements in computational fluid dynamics (CFD) and finite element analysis (FEA) have greatly improved the accuracy of flutter calculation. These tools allow engineers to create detailed simulations of airflow around structures, providing insights into how they will behave under various conditions. As technology continues to evolve, the ability to perform real-time flutter calculation during the design phase will become increasingly important, enabling engineers to make informed decisions and optimize designs for performance and safety.Moreover, the importance of flutter calculation is underscored by historical events where neglecting this analysis led to disastrous consequences. One notable example is the Tacoma Narrows Bridge collapse in 1940, which was partly attributed to aeroelastic flutter. Such incidents highlight the necessity of rigorous flutter analysis in engineering practice.In conclusion, flutter calculation is an essential aspect of engineering that ensures the safety and functionality of various structures exposed to aerodynamic forces. By leveraging modern computational tools and methodologies, engineers can predict and mitigate the risks associated with flutter, ultimately leading to safer designs and improved performance. As the field of engineering continues to advance, the role of flutter calculation will remain critical in shaping the future of safe and efficient structural designs.

在工程和空气动力学领域，术语颤振计算对于确保各种结构的安全性和性能至关重要，尤其是在航空领域。颤振是一种动态不稳定现象，当气动力与结构刚度和惯性相互作用时，会导致潜在的灾难性振荡。通过颤振计算理解和预测这些振荡对于飞机翼、控制面以及其他在飞行中受气流影响的部件的设计至关重要。当工程师进行颤振计算时，他们通常使用先进的数学模型和模拟来分析不同材料和形状如何响应气动力。这一过程涉及确定结构的固有频率，并将其与作用于其上的气动力频率进行比较。如果频率一致，就会发生共振条件，从而导致颤振。因此，工程师必须仔细考虑材料特性、几何配置和操作条件等因素，以降低颤振的风险。颤振计算的重要性不仅仅限于飞机设计。它还在桥梁、高层建筑甚至风力涡轮机的发展中发挥着关键作用。例如，桥梁可能因强风而经历颤振，这可能导致危险的振动和结构失效。通过进行颤振计算，工程师可以识别潜在问题并实施设计修改，以增强稳定性和安全性。近年来，计算流体动力学（CFD）和有限元分析（FEA）的进步极大地提高了颤振计算的准确性。这些工具使工程师能够创建详细的结构周围气流模拟，提供关于它们在各种条件下的行为的洞察。随着技术的不断发展，在设计阶段实时进行颤振计算的能力将变得越来越重要，使工程师能够做出明智的决策并优化设计以提高性能和安全性。此外，历史事件也强调了颤振计算的重要性，忽视这一分析可能导致灾难性的后果。一个显著的例子是1940年塔科马海峡大桥的倒塌，部分原因归因于空气弹性颤振。这类事件突显了在工程实践中进行严格颤振分析的必要性。总之，颤振计算是确保暴露于气动力的各种结构安全性和功能性的一个重要方面。通过利用现代计算工具和方法，工程师可以预测和减轻与颤振相关的风险，最终导致更安全的设计和改进的性能。随着工程领域的不断发展，颤振计算在塑造安全高效的结构设计未来方面将继续发挥关键作用。