lumped characteristic

简明释义

集总特性;

英英释义

例句

1.The engineer applied the lumped characteristic concept to estimate heat transfer rates.

工程师运用整体特性概念来估算热传递速率。

2.In electrical circuits, a lumped characteristic model can be used for components like resistors and capacitors.

在电路中，可以对电阻器和电容器等元件使用整体特性模型。

3.Using a lumped characteristic approach simplifies the calculations in fluid dynamics.

使用整体特性方法简化了流体动力学中的计算。

4.The lumped characteristic assumption is valid when the object's dimensions are much smaller than the characteristic length of the flow.

当物体的尺寸远小于流动的特征长度时，整体特性假设是有效的。

5.In thermal analysis, the lumped characteristic model assumes that the temperature is uniform throughout the object.

在热分析中，整体特性模型假设物体内部温度均匀。

作文

In the field of engineering and physics, the term lumped characteristic refers to a simplification method used in modeling systems. This approach assumes that certain properties of a system can be treated as concentrated at a single point rather than distributed over a volume. For instance, when analyzing electrical circuits, engineers often use lumped characteristic models to represent components like resistors and capacitors. This allows for easier calculations and a clearer understanding of how the circuit functions as a whole.The concept of lumped characteristic is particularly useful in situations where the physical dimensions of the components are much smaller than the wavelengths of interest, such as in microwave engineering. By treating these components as having their properties concentrated at a point, engineers can apply simpler mathematical techniques to predict the behavior of the entire system.However, it is essential to recognize that the lumped characteristic model has its limitations. In cases where the size of the components is comparable to the wavelength or when significant spatial variations exist within the system, this simplification can lead to inaccurate results. In such scenarios, more complex models that account for distributed characteristics may be necessary.Understanding lumped characteristic models is crucial for students and professionals in engineering disciplines. It provides a foundation for analyzing systems effectively and helps in developing intuition about how different components interact. For example, in thermal analysis, the heat capacity of a solid object can be described using a lumped characteristic if the object is small and the temperature gradient within it is negligible. This allows engineers to calculate the heat transfer rates without needing to consider the detailed temperature distribution throughout the material.In summary, the concept of lumped characteristic serves as a valuable tool in simplifying complex systems into manageable models. While it is not universally applicable, its use in various engineering fields demonstrates its importance in fostering a deeper understanding of system dynamics. As technology continues to advance, the ability to discern when to apply lumped characteristic models versus when to utilize more detailed analyses will remain a critical skill for engineers and scientists alike.

在工程和物理学领域，术语lumped characteristic指的是一种用于建模系统的简化方法。这种方法假设系统的某些属性可以集中在一个点上进行处理，而不是分布在一个体积中。例如，在分析电路时，工程师通常使用lumped characteristic模型来表示电阻器和电容器等组件。这使得计算变得更简单，并且更清晰地理解整个电路的功能。lumped characteristic的概念在组件的物理尺寸远小于感兴趣的波长的情况下尤其有用，例如在微波工程中。通过将这些组件视为其属性集中在一个点上，工程师可以应用更简单的数学技术来预测整个系统的行为。然而，必须认识到lumped characteristic模型有其局限性。在组件的大小与波长相当或系统内存在显著的空间变化的情况下，这种简化可能会导致不准确的结果。在这种情况下，可能需要更复杂的模型来考虑分布特性。理解lumped characteristic模型对工程学科的学生和专业人员至关重要。它为有效分析系统提供了基础，并帮助培养对不同组件如何相互作用的直觉。例如，在热分析中，如果固体物体很小且其内部的温度梯度可以忽略，则可以使用lumped characteristic来描述该物体的热容量。这使得工程师能够计算热传递速率，而无需考虑材料内部的详细温度分布。总之，lumped characteristic的概念作为一种将复杂系统简化为可管理模型的宝贵工具。尽管它并非普遍适用，但在各个工程领域的使用展示了它在加深对系统动态理解中的重要性。随着技术的不断进步，能够辨别何时应用lumped characteristic模型以及何时利用更详细的分析，将始终是工程师和科学家的一项关键技能。