rotational frequency

简明释义

转数

英英释义

例句

1.To calculate the rotational frequency of the fan, we divide the number of revolutions by the time taken in seconds.

要计算风扇的转动频率，我们将旋转次数除以所用时间（秒）。

2.The motor operates at a rotational frequency of 3000 RPM, which means it completes 3000 revolutions per minute.

该电机的转动频率为3000转/分钟，这意味着它每分钟完成3000次旋转。

3.The rotational frequency of the wheel affects the speed of the vehicle.

轮子的转动频率影响车辆的速度。

4.The rotational frequency of the Earth is approximately 1 revolution per day.

地球的转动频率大约为每天1次旋转。

5.In this experiment, we measured the rotational frequency of the spinning top to understand its stability.

在这个实验中，我们测量了陀螺的转动频率以了解其稳定性。

作文

Understanding the concept of rotational frequency is essential in various fields of science and engineering. This term refers to the number of complete rotations an object makes around a fixed axis in a unit of time, typically measured in hertz (Hz). For instance, if a wheel completes one full turn every second, its rotational frequency would be 1 Hz. This simple yet powerful concept plays a crucial role in understanding the dynamics of rotating bodies.In physics, particularly in mechanics, the rotational frequency is vital for analyzing systems that involve circular motion. It helps in determining angular velocity, which is the rate of change of angular displacement over time. The relationship between linear velocity and rotational frequency can be illustrated through the formula: v = rω, where v is linear velocity, r is the radius of the circular path, and ω is the angular velocity in radians per second. This formula shows how rotational frequency influences the speed of an object moving along a circular path.Moreover, in engineering applications, especially in the design of machinery, understanding rotational frequency is crucial for ensuring efficiency and safety. For example, in a motor, the rotational frequency determines how fast the motor runs, which directly affects the performance of the machine it powers. Engineers must calculate the optimal rotational frequency to avoid excessive wear and tear on components and to ensure that the machine operates within safe limits.Another important aspect of rotational frequency is its relationship with energy. In systems like flywheels, the stored kinetic energy is proportional to the square of the rotational frequency. Therefore, even a slight increase in rotational frequency can lead to a significant increase in energy storage. This principle is utilized in various applications, from energy generation to transportation, where flywheels are used to store energy efficiently.Additionally, in the field of astronomy, rotational frequency is used to describe the rotation of celestial bodies. For instance, the rotational frequency of planets influences their day length and climate patterns. Understanding these frequencies allows astronomers to make predictions about planetary behavior and interactions within the solar system.In conclusion, the concept of rotational frequency is not only fundamental in physics but also has practical implications across various disciplines. From improving the design of mechanical systems to enhancing our understanding of astronomical phenomena, mastering the idea of rotational frequency enables scientists and engineers to innovate and solve complex problems effectively. As technology continues to advance, the importance of this concept will only grow, making it a critical area of study for future generations.

理解旋转频率的概念在科学和工程的各个领域都是至关重要的。这个术语指的是一个物体围绕固定轴在单位时间内完成的完整旋转次数，通常以赫兹（Hz）为单位进行测量。例如，如果一个轮子每秒完成一次完整的转动，则其旋转频率为1 Hz。这个简单而强大的概念在理解旋转物体的动态中起着关键作用。在物理学，特别是力学中，旋转频率对于分析涉及圆周运动的系统至关重要。它有助于确定角速度，即角位移随时间变化的速率。线速度和旋转频率之间的关系可以通过公式v = rω来说明，其中v是线速度，r是圆周路径的半径，ω是以弧度每秒为单位的角速度。这个公式显示了旋转频率如何影响沿圆形路径移动的物体的速度。此外，在工程应用中，特别是在机器设计中，理解旋转频率对于确保效率和安全至关重要。例如，在电动机中，旋转频率决定了电动机的运行速度，这直接影响到它所驱动的机器的性能。工程师必须计算最佳的旋转频率以避免组件的过度磨损，并确保机器在安全范围内运行。旋转频率的另一个重要方面是它与能量的关系。在飞轮等系统中，储存的动能与旋转频率的平方成正比。因此，即使是旋转频率的轻微增加也会导致能量储存的显著增加。这个原理被广泛应用于各种应用中，从能源生成到运输，飞轮被用来有效地储存能量。此外，在天文学领域，旋转频率用于描述天体的旋转。例如，行星的旋转频率影响其昼夜长度和气候模式。理解这些频率使天文学家能够预测行星的行为以及太阳系内的相互作用。总之，旋转频率的概念不仅在物理学中是基础的，而且在各个学科中具有实际意义。从改善机械系统的设计到增强我们对天文现象的理解，掌握旋转频率的思想使科学家和工程师能够有效地创新和解决复杂问题。随着技术的不断进步，这一概念的重要性只会增加，使其成为未来几代人研究的关键领域。