自行驱动的坎佛盘在排斥性扰动下的内在速度特征
Yuki Koyano1, Jerzy Górecki2, Hiroyuki Kitahata3
1Graduate School of Human Development and Environment, Kobe University, Kobe 657-0011, Japan.
Chaos (Woodbury, N.Y.)
|March 10, 2026
概括
这项研究模拟了花旋转器动态与第二个花源相互作用. 结果显示旋转器速度是不对称的,取决于旋转器是否接近或退出扰动.
科学领域:
- 自行机动运动的物理学
- 软物质动力学 软物质动力学
- 流体力学 流体力学 流体力学
背景情况:
- 坎佛盘在水面上表现出自我推进的运动.
- 坎佛物体之间的相互作用可以导致复杂的动态.
- 之前的研究探讨了各种坎佛驱动的行为.
研究的目的:
- 分析一个1D模型的坎佛旋转器与局部坎佛源相互作用.
- 了解控制转子-动相互作用的距离依赖潜力.
- 将模型预测与实验观测进行比较.
主要方法:
- 开发一个一维的数学模型.
- 坎佛旋转器动力学的数值模拟.
- 对弱扰动情况的分析解决方案的推导.
主要成果:
- 数字模拟重现了实验观察到的位置依赖转子速度.
- 在微弱扰动下,针对任意的潜在配置得到分析解决方案.
- 根据扰动的接近或衰退,观察到旋转器速度的显著不对称性.
结论:
- 一维模型有效地捕捉了坎佛旋转机与动相互作用的关键特征.
- 衍生出的分析解决方案提供了对弱扰动下的动态的洞察.
- 这项研究强调了坎佛旋转器运动受到外部来源影响的不对称性.
相关概念视频
Rolling Without Slipping
5.6K
People have observed the rolling motion without slipping ever since the invention of the wheel. For example, one can look at the interaction between a car's tires and the surface of the road. If the driver presses the accelerator to the floor so that the tires spin without the car moving forward, there must be kinetic friction between the wheels and the road's surface. If the driver slowly presses the accelerator, causing the car to move forward, the tires roll without slipping. It is...
5.6K
Instantaneous Center of Zero Velocity
932
General plane motion, often observed in a rolling wheel, refers to a type of movement where the wheel is simultaneously rotating and translating. This complex motion can be understood by breaking it down into individual components.
To analyze this, consider two points on the wheel: point A and point B. The absolute velocity of point B can be expressed as the vector sum of the absolute velocity of point A and the relative velocity of point B with respect to point A. To simplify this analysis,...
To analyze this, consider two points on the wheel: point A and point B. The absolute velocity of point B can be expressed as the vector sum of the absolute velocity of point A and the relative velocity of point B with respect to point A. To simplify this analysis,...
932
Uniform Circular Motion
22.8K
Uniform circular motion is a specific type of motion in which an object travels in a circle with a constant speed. For example, any point on a propeller spinning at a constant rate is undergoing uniform circular motion. The second, minute, and hour hands of a watch also undergo uniform circular motion. It is hard to believe that points on these rotating objects are actually accelerating, even though the rotation rate is constant. To understand this, we must analyze the motion in terms of...
22.8K
Dynamics Of Circular Motion: Applications
9.9K
Suppose a car moves on flat ground and turns to the left. The centripetal force causing the car to turn in a circular path is due to friction between the tires and the road. For this, a minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway. Let's now consider banked curves, where the slope of the road helps in negotiating the curve. The greater the angle of the curve, the faster one can take the curve. It is common for race tracks for...
9.9K
Equation of Motion: General Plane motion - Problem Solving
552
Consider a lawn roller with a mass of 100 kg, a radius of 0.2 meters, and a radius of gyration of 0.15 meters. A force of 200 N is applied to this roller, angled at 60 degrees from the horizontal plane. What will be the angular acceleration of the lawn roller?
The friction between the roller and the ground is characterized by two coefficients. The static friction coefficient is 0.15, while the kinetic friction coefficient is 0.1. These values are crucial in understanding the interaction between...
The friction between the roller and the ground is characterized by two coefficients. The static friction coefficient is 0.15, while the kinetic friction coefficient is 0.1. These values are crucial in understanding the interaction between...
552
Dynamics of Circular Motion
25.8K
An object undergoing circular motion, like a race car, is accelerating because it is changing the direction of its velocity. This centrally directed acceleration is called centripetal acceleration. This acceleration acts along the radius of the curved path (thus is also referred to as radial acceleration).
Any acceleration must be produced by some force. Therefore, any force or combination of forces can cause centripetal acceleration. A few examples include the tension in the rope on a...
Any acceleration must be produced by some force. Therefore, any force or combination of forces can cause centripetal acceleration. A few examples include the tension in the rope on a...
25.8K


