span-chord ratio

简明释义

展弦比

英英释义

The span-chord ratio is a dimensionless quantity used in aerodynamics and structural engineering, defined as the ratio of the span (the distance from one tip of a wing or structure to the other) to the chord length (the straight line distance between the leading edge and trailing edge of the wing or structure).

跨度-弦长比是一个无量纲量,常用于空气动力学和结构工程,定义为跨度(从一个翼尖到另一个翼尖的距离)与弦长(从翼的前缘到后缘的直线距离)的比率。

例句

1.A higher span-chord ratio generally leads to better performance in gliders.

更高的跨距-弦长比通常会导致滑翔机性能更佳。

2.Understanding the span-chord ratio can help in selecting the right materials for construction.

理解跨距-弦长比可以帮助选择合适的建筑材料。

3.The engineer calculated the span-chord ratio to ensure the bridge would have adequate strength.

工程师计算了跨距-弦长比以确保桥梁具有足够的强度。

4.In aerodynamics, the span-chord ratio is crucial for determining the lift characteristics of a wing.

在空气动力学中,跨距-弦长比对于确定机翼的升力特性至关重要。

5.The design team optimized the span-chord ratio to improve the aircraft's fuel efficiency.

设计团队优化了跨距-弦长比以提高飞机的燃油效率。

作文

The concept of the span-chord ratio is essential in the field of structural engineering and architecture. It refers to the relationship between the span of a structure and its chord length, which is particularly significant when designing arches, bridges, and other load-bearing structures. Understanding this ratio helps engineers determine the stability and performance of a design under various loads and conditions.To elaborate, the span is the distance between two supports of a structure, while the chord is the straight line that connects the endpoints of the arc or curve in a structure. The span-chord ratio is calculated by dividing the length of the span by the length of the chord. A higher ratio indicates a flatter curve, while a lower ratio suggests a more pronounced arch. This relationship is crucial because it influences the distribution of forces within the structure and ultimately affects its safety and durability.In practical applications, the span-chord ratio plays a vital role in the design of bridges. For instance, engineers must consider this ratio when determining the optimal shape of a bridge arch to ensure it can withstand the weight of vehicles and environmental factors such as wind and seismic activity. By analyzing the span-chord ratio, engineers can make informed decisions about materials and construction techniques, leading to safer and more efficient designs.Moreover, the span-chord ratio is not only relevant in civil engineering but also in aerodynamics. Aircraft wings, for example, are designed with specific span-chord ratios to optimize lift and drag. A well-calibrated ratio can significantly enhance an aircraft's performance, making it more fuel-efficient and easier to maneuver. Thus, understanding the implications of the span-chord ratio extends beyond mere calculations; it is integral to innovation and advancement in engineering practices.Furthermore, educational institutions emphasize the importance of the span-chord ratio in their curricula. Students studying engineering and architecture are taught how to apply this concept in real-world scenarios. They engage in projects that require them to analyze existing structures, calculate their span-chord ratios, and suggest improvements based on their findings. This hands-on experience is invaluable, as it prepares students for the complexities they will face in their professional careers.In conclusion, the span-chord ratio is a fundamental concept in engineering that serves as a critical factor in the design and analysis of structures. Its significance spans various fields, from civil engineering to aerodynamics, highlighting its versatility and importance. As technology continues to advance, the understanding and application of the span-chord ratio will undoubtedly evolve, paving the way for innovative designs and safer structures in the future. Engineers and architects must continue to prioritize this ratio in their work to ensure that they create structures that are not only aesthetically pleasing but also structurally sound and capable of withstanding the test of time.

“跨度-弦长比”这一概念在结构工程和建筑领域中至关重要。它指的是结构的跨度与其弦长之间的关系,这在设计拱门、桥梁和其他承重结构时尤为重要。理解这一比例有助于工程师在各种载荷和条件下确定设计的稳定性和性能。进一步阐述,跨度是结构两个支撑点之间的距离,而弦是连接结构弧或曲线端点的直线。“跨度-弦长比”是通过将跨度的长度除以弦的长度来计算的。较高的比率表示曲线更平坦,而较低的比率则表明拱形更明显。这个关系至关重要,因为它影响结构内部的力的分布,并最终影响其安全性和耐久性。在实际应用中,“跨度-弦长比”在桥梁设计中发挥着至关重要的作用。例如,工程师在确定桥弓的最佳形状时必须考虑这一比率,以确保它能够承受车辆的重量以及风和地震等环境因素。通过分析“跨度-弦长比”,工程师可以对材料和施工技术做出明智的决策,从而导致更安全、更高效的设计。此外,“跨度-弦长比”不仅与土木工程相关,还与空气动力学相关。例如,飞机机翼的设计具有特定的“跨度-弦长比”,以优化升力和阻力。一个良好校准的比率可以显著提高飞机的性能,使其更加节能且易于操控。因此,理解“跨度-弦长比”的影响超出了简单的计算;它是工程实践中创新和进步的核心。此外,教育机构在其课程中强调“跨度-弦长比”的重要性。学习工程和建筑的学生被教导如何在现实场景中应用这一概念。他们参与需要分析现有结构、计算其“跨度-弦长比”并根据发现提出改进建议的项目。这种实践经验是无价的,因为它为学生准备了他们在职业生涯中将面临的复杂性。总之,“跨度-弦长比”是工程中的一个基本概念,是结构设计和分析的重要因素。它在各个领域的意义广泛,从土木工程到空气动力学,突显了它的多功能性和重要性。随着技术的不断进步,对“跨度-弦长比”的理解和应用无疑将不断发展,为未来创新设计和更安全的结构铺平道路。工程师和建筑师必须继续在工作中优先考虑这一比率,以确保他们创造出不仅美观而且结构坚固、能够经受时间考验的结构。

相关单词

ratio

ratio详解:怎么读、什么意思、用法