相关实验视频
Updated: Jun 25, 2025

04:58
A Rapid Method for Modeling a Variable Cycle Engine
Published on: August 13, 2019
7.6K
探索四分之一汽车模型中的非线性,通过实验方法来制定分数顺序形式及其动态分析
Tadios Molla1, Prakash Duraisamy2, Karthikeyan Rajagopal2
1Production Engineering Department, College of Engineering, Defence University, 1041, Bishoftu, Oromiya, Ethiopia.
Scientific reports
|May 27, 2024
概括
这项研究表明,分数顺序的非线性四分之一汽车模型可以表现出混乱的动态. 了解这些非线性对于优化车辆悬架系统以提高驾驶舒适度和稳定性至关重要.
科学领域:
- 汽车工程 汽车工程
- 非线性动力学是一种非线性动力学.
- 控制理论 控制理论
背景情况:
- 车辆悬架系统对于乘客的舒适性,稳定性和行驶质量至关重要.
- 了解悬挂非线性对于性能优化至关重要.
- 传统模型可能无法完全捕捉复杂的现实世界的动态.
研究的目的:
- 用实验和数值方法探索四分之一汽车模型固有的非线性.
- 评估参数对悬架性能的影响,以优化驾驶舒适度,稳定性和操控性.
- 为了研究在模拟非线性车辆行为中分数顺序动态的有效性.
主要方法:
- 实验分析,以调查具有挑战性的因素,如刚性,非线性和可变阻尼.
- 开发和研究使用卡普托衍生品的分数顺序非线性四分之一汽车模型.
- 使用Adam-Bashforth-Moulton方法对随机道路干扰的分数顺序系统进行数值分析.
主要成果:
- 用实验和数值方法分析了四分之一的汽车模型动态.
- 分数顺序非线性模型有效地捕获了复杂的动态,揭示了混乱反应的潜力.
- 研究了道路粗幅度和频率对车辆振动的影响.
结论:
- 分数顺序的非线性四分之一汽车模型提供了更有效地表示现实世界的车辆动态.
- 该研究强调了车辆悬架系统中混乱动态反应的潜力.
- 这些发现有助于优化悬挂设计,以提高驾驶舒适性和稳定性.
相关概念视频
Linear Approximation in Time Domain
81
Nonlinear systems often require sophisticated approaches for accurate modeling and analysis, with state-space representation being particularly effective. This method is especially useful for systems where variables and parameters vary with time or operating conditions, such as in a simple pendulum or a translational mechanical system with nonlinear springs.
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
81
Linear Approximation in Frequency Domain
89
Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
89
First Order Systems
89
First-order systems, such as RC circuits, are foundational in understanding dynamic systems due to their straightforward input-output relationship. Analyzing their responses to different input functions under zero initial conditions reveals significant insights into system behavior.
When a first-order system is subjected to a unit-step input, its response is characterized by its transfer function. By applying the Laplace transform of the unit-step input to the transfer function, expanding the...
When a first-order system is subjected to a unit-step input, its response is characterized by its transfer function. By applying the Laplace transform of the unit-step input to the transfer function, expanding the...
89
Second Order systems II
101
In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
101
Curvilinear Motion: Rectangular Components
445
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
445
Routh-Hurwitz Criterion II
226
In the application of the Routh-Hurwitz criterion, two specific scenarios can arise that complicate stability analysis.
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
226

