center line chord

简明释义

中心线弦长

英英释义

例句

1.The architect specified a longer center line chord for better stability.

建筑师指定了更长的中心线弦以提高稳定性。

2.We need to measure the center line chord to ensure proper alignment of the trusses.

我们需要测量中心线弦以确保桁架的正确对齐。

3.In structural design, the center line chord is crucial for load distribution.

在结构设计中，中心线弦对于荷载分布至关重要。

4.The engineer calculated the dimensions of the beam using the center line chord.

工程师使用中心线弦计算了梁的尺寸。

5.During the inspection, we found that the center line chord was not properly installed.

在检查中，我们发现中心线弦没有正确安装。

作文

In the field of engineering and design, particularly in aerodynamics and fluid dynamics, understanding the concept of a center line chord is crucial. The center line chord refers to the straight line that connects the leading edge of an airfoil to its trailing edge, passing through the midpoint of the airfoil's thickness. This measurement is essential for various calculations, including lift, drag, and overall aerodynamic efficiency. When designing an aircraft wing, engineers must consider the center line chord to ensure optimal performance. The length of the center line chord can significantly affect the wing's ability to generate lift. A longer chord typically allows for greater lift at lower speeds, which is why many aircraft designed for takeoff and landing have wings with longer chords. Conversely, a shorter center line chord may be advantageous for high-speed flight as it reduces drag, allowing the aircraft to cut through the air more efficiently.Moreover, the center line chord plays a vital role in determining the aspect ratio of the wing. The aspect ratio is the ratio of the wingspan to the center line chord. A high aspect ratio wing has a long span and a short chord, which can improve lift-to-drag ratios, making it ideal for gliders and long-range aircraft. On the other hand, a low aspect ratio wing, which has a shorter span relative to its chord, is often found on fighter jets and other aircraft that require high maneuverability.The relationship between the center line chord and the airfoil's camber also cannot be overlooked. Camber refers to the curvature of the airfoil; a well-designed airfoil will have an optimal camber that works in conjunction with the center line chord to enhance lift. By adjusting the camber and chord length, engineers can fine-tune the aerodynamic properties of the wing to suit specific flight requirements.Furthermore, during the testing phase, the center line chord is used to analyze the airflow over the wing using computational fluid dynamics (CFD) simulations. These simulations help engineers visualize how air moves over the airfoil and identify any potential issues with lift or drag. Understanding the behavior of air around the center line chord allows for adjustments to be made before physical prototypes are built, saving both time and resources.In conclusion, the center line chord is a fundamental concept in the design and analysis of airfoils. Its implications extend beyond mere measurements; it influences the aerodynamic efficiency, performance characteristics, and overall design of aircraft. As technology advances, the importance of accurately understanding and applying the principles surrounding the center line chord will only continue to grow, making it an essential topic for future aerospace engineers. By mastering this concept, engineers can contribute to the creation of safer, more efficient, and innovative aircraft designs.

在工程和设计领域，特别是在空气动力学和流体动力学中，理解“中心线弦”的概念至关重要。“中心线弦”是指连接气动翼前缘和后缘的直线，经过气动翼厚度的中点。这个测量对于各种计算，包括升力、阻力和整体空气动力效率至关重要。在设计飞机机翼时，工程师必须考虑“中心线弦”，以确保最佳性能。“中心线弦”的长度会显著影响机翼产生升力的能力。较长的弦通常在较低速度下允许产生更大的升力，这就是为什么许多为起飞和着陆而设计的飞机具有较长弦的机翼。相反，较短的“中心线弦”可能对高速飞行有利，因为它减少了阻力，使飞机能够更有效地穿透空气。此外，“中心线弦”在确定机翼的展弦比方面也发挥着重要作用。展弦比是机翼展长与“中心线弦”的比率。高展弦比的机翼具有较长的展长和较短的弦，这可以改善升阻比，使其非常适合滑翔机和远程飞机。另一方面，低展弦比的机翼，其展长相对于弦较短，通常出现在战斗机和其他需要高机动性的飞机上。“中心线弦”与气动翼的弯度之间的关系也不可忽视。弯度是指气动翼的曲率；设计良好的气动翼将具有最佳的弯度，与“中心线弦”协同工作以增强升力。通过调整弯度和弦长，工程师可以微调机翼的空气动力特性，以适应特定的飞行要求。此外，在测试阶段，“中心线弦”用于通过计算流体动力学（CFD）模拟分析机翼上的气流。这些模拟帮助工程师可视化空气如何在气动翼上移动，并识别升力或阻力的潜在问题。理解空气在“中心线弦”周围的行为使得在建造物理原型之前可以进行调整，从而节省时间和资源。总之，“中心线弦”是气动翼设计和分析中的一个基本概念。它的影响超出了简单的测量；它影响着空气动力效率、性能特征和飞机的整体设计。随着技术的进步，准确理解和应用与“中心线弦”相关的原理的重要性只会继续增长，这使它成为未来航空航天工程师的一个重要主题。通过掌握这一概念，工程师可以为创造更安全、更高效和更具创新性的飞机设计做出贡献。