要求建立一个三自由度​力学模型，其中包含非​线性弹簧元素，并使用​龙格-库塔法（Run​ge-Kutta法）​数值求解系统的时域响​应。作业要求生成至少​8页的报告，包括两个​图表（位移和速度时域​响应图），并分析非线​性效应。

常微分方提對憶算法：花各、库路法（Rung Kuot,st）ole是Mathab专门拥于解微分方量故內能函数。

ode45表示采用四除-五附Rungg- Kiutd算法，它再助市誌是出除选解，5你方法控制误差，是一种官适直步长（变步长）依濃敬分方程数值解法

要求建立一个三自由度力学模型，其中包含非线性弹簧元素，并使用龙格-库塔法（Runge-Kutta法）数值求解系统的时域响应。作业要求生成至少8页的报告，包括两个图表（位移和速度时域响应图），并分析非线性效应。

[Chuguang Pan]

@Bienvenu Kiswendsida. Firstly, you should construct 3-DoF ODEs of this structure dynamic model. Then, you can use ode function to solve the ODEs.

[Sam Chak]

Page 1: Introduction to car suspension and its importance.

Page 2: Modeling the quarter-car suspension dynamics – the upper half for mass 1 and the lower half for mass 2.

Page 3: Modeling the quarter-car suspension dynamics – the upper half for mass 3 and the lower half for connecting the masses (the entire system).

Page 4: Experimental setup for Configurations 1 () and 2 (), where the road surface disturbance should be mathematically designed based on practical scenarios (speed bumps, potholes, etc).

Page 5: Discussion of how the Runge-Kutta method can be employed to solve the problem.

Page 6: Results – presentation of plots and analytical solutions (if applicable).

Page 7: Analysis – provide explanations of the findings and determine which configuration is preferred: or .

Page 8: Conclusions and a recommendation for implementing active suspension control in modern vehicles.

Page 9: Appendix – MATLAB code.

[Bienvenu Kiswendsida]

Please would you mind checking on my work? Thanks in advance

[xingxingcui]

home work不要张贴到此论坛寻求直接“替你”完成，这里期望你思考解决讨论的问题的地方。

Answer 1

[Sam Chak]

Hi @Bienvenu Kiswendsida

Your document is primarily written in Chinese characters. I do not have the marking scheme, and the MATLAB code in dynamics_3DOF.m is not included. You have only provided the graph for mass ​, which is consistent with the oscillatory behavior. However, the graphs for ​ and ​ are not included. After incorporating them, you may submit the document to your professor for any necessary corrections in the modeling.