circumferential velocity

简明释义

圆周速度

英英释义

例句

1.In a rotating wheel, the circumferential velocity 周向速度 increases as the radius of the wheel increases.

在旋转的轮子中，随着轮子的半径增加，周向速度也会增加。

2.The formula for calculating circumferential velocity 周向速度 is v = rω, where v is the velocity, r is the radius, and ω is the angular velocity.

计算周向速度的公式为v = rω，其中v是速度，r是半径，ω是角速度。

3.To calculate the circumferential velocity 周向速度 of a planet in orbit, one needs to know its distance from the sun and its orbital period.

要计算行星在轨道上的周向速度，需要知道它与太阳的距离和轨道周期。

4.The circumferential velocity 周向速度 of a point on the edge of a spinning disc can be measured using a tachometer.

可以使用转速计测量旋转盘边缘某一点的周向速度。

5.Engineers must consider the circumferential velocity 周向速度 when designing turbines to ensure efficiency.

工程师在设计涡轮时必须考虑周向速度以确保效率。

作文

In the study of physics and engineering, understanding the concept of circumferential velocity is essential, especially when analyzing rotating systems. Circumferential velocity refers to the linear speed of an object moving along a circular path, measured at any point along the circumference of the circle. This concept is not only crucial in theoretical studies but also has practical applications in various fields such as mechanical engineering, aerospace, and even everyday activities like driving a car or riding a bicycle.To grasp the importance of circumferential velocity, it is helpful to consider its formula. The circumferential velocity (v) can be calculated using the formula v = r * ω, where r is the radius of the circular path, and ω (omega) represents the angular velocity in radians per second. This relationship shows that the speed of an object increases with the radius of the circle — the larger the radius, the greater the circumferential velocity. For instance, think about the wheels of a bicycle. As the rider pedals, the wheels rotate around their axis. The point on the edge of the wheel travels a distance greater than a point closer to the center for the same amount of rotation. Hence, the circumferential velocity of the outer edge of the wheel is higher compared to that of a point nearer to the hub. This principle is crucial for designing efficient vehicles, as engineers must ensure that the wheels provide adequate traction while maintaining optimal speed. Moreover, circumferential velocity plays a significant role in the functioning of various machinery. For example, in turbines and generators, the circumferential velocity of blades affects the efficiency of energy conversion. If the blades rotate too slowly, they may not generate sufficient power; conversely, if they rotate too quickly, they may experience excessive wear or failure. Therefore, engineers meticulously calculate the circumferential velocity to achieve a balance between performance and durability.In the context of celestial mechanics, circumferential velocity is also vital. When studying the orbits of planets and satellites, scientists consider the circumferential velocity necessary to maintain a stable orbit. For example, the International Space Station (ISS) travels at an average altitude of approximately 400 kilometers above Earth, with a circumferential velocity of about 28,000 kilometers per hour. This high speed allows the ISS to counteract the gravitational pull of the Earth, preventing it from falling back to the surface. Understanding this balance between gravitational force and circumferential velocity is key to successful space missions.In conclusion, the concept of circumferential velocity is fundamental in various domains, from engineering to physics and beyond. Its implications are vast, influencing the design of vehicles, machinery, and even the trajectory of spacecraft. By comprehending how circumferential velocity operates and its critical role in different applications, individuals can better appreciate the intricacies of motion and the principles governing our physical world.

在物理和工程的研究中，理解周向速度的概念至关重要，特别是在分析旋转系统时。周向速度是指沿着圆形路径移动的物体的线速度，在圆的周长上的任何点测量。这个概念不仅在理论研究中至关重要，而且在机械工程、航空航天等各个领域以及日常活动中，如开车或骑自行车，都具有实际应用。要掌握周向速度的重要性，了解其公式是有帮助的。周向速度（v）可以通过公式v = r * ω计算，其中r是圆形路径的半径，ω（欧米伽）表示每秒弧度的角速度。这个关系表明，物体的速度随着圆的半径而增加——半径越大，周向速度越大。例如，想象一下自行车的轮子。当骑行者踩踏板时，轮子围绕其轴旋转。轮子边缘的点在相同的旋转量下行驶的距离大于靠近中心的点。因此，轮子外缘的周向速度高于靠近轮毂的点。这一原理对于设计高效的车辆至关重要，因为工程师必须确保轮子在保持最佳速度的同时提供足够的牵引力。此外，周向速度在各种机械设备的运行中也发挥着重要作用。例如，在涡轮机和发电机中，叶片的周向速度影响能量转换的效率。如果叶片旋转得太慢，可能无法产生足够的动力；相反，如果旋转得太快，可能会经历过度磨损或故障。因此，工程师仔细计算周向速度以实现性能与耐用性之间的平衡。在天体力学的背景下，周向速度也至关重要。在研究行星和卫星的轨道时，科学家考虑维持稳定轨道所需的周向速度。例如，国际空间站（ISS）平均飞行高度约为400公里，周向速度约为每小时28000公里。这种高速使国际空间站能够抵消地球的引力，防止其坠落回地面。理解这种引力与周向速度之间的平衡对于成功的太空任务至关重要。总之，周向速度的概念在多个领域中都是基础，从工程到物理学及其他领域。它的影响广泛，影响着车辆、机械的设计，甚至是航天器的轨迹。通过理解周向速度的运作方式及其在不同应用中的关键角色，个人可以更好地欣赏运动的复杂性以及支配我们物理世界的原则。