基于可控制尾部的双翼FMAV系统的稳定性和控制器研究.
Yichen Zhang1,2, Yiming Xiao1,2, Qingcheng Guo1,2
1National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai 200240, China.
Biomimetics (Basel, Switzerland)
|August 28, 2024
概括
一个仿生尾巴显著提高了飞行稳定性和响应速度在的微型空中飞行器 (FMAV). 这种尾部控制器将响应时间减少了95%以上,并在起飞机动中提高了飞行稳定性.
科学领域:
- 机器人和自动化 机器人和自动化
- 航空航天工程 航空航天工程
- 生物模拟学是一种生物模拟学.
背景情况:
- 被动稳定动微型空中飞行器 (FMAV) 在稳定性和响应速度方面面临挑战.
- 仿生设计为提高空气动力学性能和控制提供了潜在的解决方案.
研究的目的:
- 为了提高被动稳定双翼FMAV的稳定性和响应速度.
- 为了研究反控制的仿生尾巴对增强飞行控制的有效性.
主要方法:
- 开发了一种精确的翼模型,用于升力计算.
- 进行实验测试以确定控制扭矩和尾部参数之间的关系.
- 用稳定帆为FMAV创建了一个稳定模型.
- 设计了一个使用线性浮动状态动态的模拟控制器.
主要成果:
- 翻动翼模型实现了2.4%的升力精度.
- 尾部控制器将角度和速度响应时间从几秒钟缩短到0.1秒.
- 可调节的尾部角度提高了飞行稳定性,在起飞过程中将标准偏差降低了高达72.96%.
- 控制轴的标准偏差减少了38.06%,证实了减少的角度偏移.
结论:
- 一个反控制的仿生尾巴有效地提高了FMAV的稳定性和响应速度.
- 开发的模型和控制策略为改善FMAV性能提供了可行的方法.
- 生物仿真尾部的实施为微型飞行器的机动性和稳定性提供了显著的优势.
相关概念视频
Pole and System Stability
260
The transfer function is a fundamental concept representing the ratio of two polynomials. The numerator and denominator encapsulate the system's dynamics. The zeros and poles of this transfer function are critical in determining the system's behavior and stability.
Simple poles are unique roots of the denominator polynomial. Each simple pole corresponds to a distinct solution to the system's characteristic equation, typically resulting in exponential decay terms in the system's...
Simple poles are unique roots of the denominator polynomial. Each simple pole corresponds to a distinct solution to the system's characteristic equation, typically resulting in exponential decay terms in the system's...
260
Feedback control systems
296
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
296
Controller Configurations
89
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
89
Stability of structures
157
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
157
Open and closed-loop control systems
685
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
685
Stability
97
The time response of a linear time-invariant (LTI) system can be divided into transient and steady-state responses. The transient response represents the system's initial reaction to a change in input and diminishes to zero over time. In contrast, the steady-state response is the behavior that persists after the transient effects have faded.
The stability of an LTI system is determined by the roots of its characteristic equation, known as poles. A system is stable if it produces a bounded...
The stability of an LTI system is determined by the roots of its characteristic equation, known as poles. A system is stable if it produces a bounded...
97


