关于#matlab#的问题：可设定各质点均处于平衡位置（即建立网络模型时各质点对应的位置），各质点初始速度和初始加速度均可设为0

% Matlab代码示例
% 定义模型参数
mass = 1; % 质量
springCoefficient = 10; % 弹簧系数
dampingCoefficient = 0.05; % 阻尼系数
initialLength = 1; % 初始长度

% 创建并打开Simulink模型
open_system('myModel');

% 添加质点组件
add_block('built-in/Constant', 'myModel/Mass', 'Value', 'mass');

% 设置质点的质量
set_param('myModel/Mass', 'Value', num2str(mass));

% 添加阻尼弹簧组件
add_block('built-in/Constant', 'myModel/Spring', 'Value', 'springCoefficient');
add_block('built-in/Constant', 'myModel/Damping', 'Value', 'dampingCoefficient');
add_block('built-in/Constant', 'myModel/Length', 'Value', 'initialLength');

% 连接质点和弹簧组件
add_line('myModel', 'Mass/1', 'Spring/1');
add_line('myModel', 'Spring/1', 'Damping/1');
add_line('myModel', 'Damping/1', 'Length/1');

% 设置弹簧组件的参数
set_param('myModel/Spring', 'Value', num2str(springCoefficient));
set_param('myModel/Damping', 'Value', num2str(dampingCoefficient));
set_param('myModel/Length', 'Value', num2str(initialLength));

% 添加欧拉积分法计算位移和速度
add_block('built-in/Derivative', 'myModel/PositionDerivative', 'SampleTime', '0.01');
add_block('built-in/Add', 'myModel/PositionAdd');
add_block('built-in/Integrator', 'myModel/PositionIntegrator', 'SampleTime', '0.01');
add_block('built-in/Gain', 'myModel/PositionGain', 'Gain', '0.01');
add_line('myModel', 'Mass/1', 'PositionDerivative/1');
add_line('myModel', 'PositionDerivative/1', 'PositionAdd/1');
add_line('myModel', 'PositionAdd/1', 'PositionIntegrator/1');
add_line('myModel', 'PositionIntegrator/1', 'PositionGain/1');

% 运行模型
sim('myModel');

% 获取位移数据
position = Position.signals.values;

% 绘制位移随时间的变化曲线
plot(Position.time, position);
xlabel('Time');
ylabel('Displacement');
title('Displacement vs Time');

% 关闭模型
close_system('myModel', 0);