net sectional area

简明释义

有效截面积

英英释义

例句

1.The net sectional area 净截面积 of the duct determines how efficiently air can flow through it.

管道的净截面积 net sectional area决定了空气流通的效率。

2.The engineer calculated the net sectional area 净截面积 of the beam to ensure it could support the load.

工程师计算了梁的净截面积 net sectional area以确保它能够承受负载。

3.To optimize the design, we need to reduce the net sectional area 净截面积 of the structure without compromising strength.

为了优化设计，我们需要在不影响强度的情况下减少结构的净截面积 net sectional area。

4.In fluid dynamics, the net sectional area 净截面积 of a pipe affects the flow rate significantly.

在流体动力学中，管道的净截面积 net sectional area显著影响流量。

5.When designing a bridge, the net sectional area 净截面积 of the supporting cables must be calculated precisely.

在设计桥梁时，支撑缆绳的净截面积 net sectional area必须精确计算。

作文

In engineering and architecture, the concept of net sectional area is crucial for understanding how structures bear loads and distribute forces. The net sectional area refers to the effective area of a structural element that is available to resist loads after accounting for any reductions due to holes, cutouts, or other discontinuities in the material. This measurement is essential because it directly impacts the strength and stability of the structure being designed. For example, in a steel beam, the presence of bolt holes or welds can significantly reduce the net sectional area, thereby affecting its load-carrying capacity.When engineers calculate the net sectional area of a beam, they start with the gross sectional area, which is the total area of the cross-section without considering any voids or reductions. They then subtract the areas of any openings or reductions to arrive at the net sectional area. This calculation ensures that the design adheres to safety standards and can withstand the anticipated loads during its lifespan.Understanding the net sectional area is not only important for structural integrity but also for material efficiency. By optimizing the net sectional area, engineers can minimize material usage while still ensuring that the structure remains safe and functional. This optimization is particularly relevant in industries where material costs are high, and sustainability is a priority. Moreover, the net sectional area plays a significant role in various engineering applications, including the design of bridges, buildings, and mechanical components. In bridge design, for instance, the net sectional area of girders must be calculated accurately to ensure that the bridge can support the weight of vehicles and withstand environmental forces such as wind and earthquakes.In mechanical engineering, the net sectional area is vital for components like shafts and beams that experience torsional or bending stresses. Engineers must consider the net sectional area when designing these components to avoid failure under load. If the net sectional area is underestimated, the component may fail prematurely, leading to catastrophic consequences.In conclusion, the net sectional area is a fundamental concept in engineering that influences the safety, efficiency, and performance of structures and components. By accurately calculating the net sectional area, engineers can ensure that their designs are not only effective but also economical and sustainable. As technology advances and materials evolve, the importance of understanding and applying the concept of net sectional area will continue to grow, making it an essential topic for all aspiring engineers and architects.

在工程和建筑中，净截面面积的概念对于理解结构如何承受荷载和分配力至关重要。净截面面积指的是在考虑材料中孔、切口或其他不连续性所造成的减少后，结构元件可用于抵抗荷载的有效面积。这个测量至关重要，因为它直接影响到所设计结构的强度和稳定性。例如，在一根钢梁中，螺栓孔或焊缝的存在可以显著减少净截面面积，从而影响其承载能力。当工程师计算梁的净截面面积时，他们首先从总截面面积开始，即未考虑任何空洞或减少的横截面的总面积。然后，他们减去任何开口或减少的面积，以得出净截面面积。这个计算确保设计符合安全标准，并能够在其使用寿命内承受预期荷载。理解净截面面积不仅对结构完整性重要，而且对材料效率也至关重要。通过优化净截面面积，工程师可以在确保结构安全和功能的同时，最小化材料的使用。这种优化在材料成本高且可持续性是优先事项的行业中特别相关。此外，净截面面积在各种工程应用中发挥着重要作用，包括桥梁、建筑物和机械组件的设计。在桥梁设计中，例如，必须准确计算梁的净截面面积，以确保桥梁能够支持车辆的重量并承受风和地震等环境力量。在机械工程中，净截面面积对于经历扭转或弯曲应力的轴和梁等组件至关重要。工程师在设计这些组件时必须考虑净截面面积，以避免在负载下失效。如果低估了净截面面积，组件可能会过早失效，导致灾难性后果。总之，净截面面积是工程中的一个基本概念，影响着结构和组件的安全性、效率和性能。通过准确计算净截面面积，工程师可以确保他们的设计不仅有效，而且经济和可持续。随着技术的进步和材料的发展，理解和应用净截面面积的概念的重要性将继续增长，使其成为所有有志于成为工程师和建筑师的人的必修课题。