通过matlab模拟仿真光反馈半导体激光器的频率响应特性和非线性。-Research program by matlab optical feedback semiconductor laser output characteristics of nonlinear dynamics

有限元法求解mindelin板的固有特性和简谐响应-The inherent characteristics of finite element method mindelin plate and harmonic response

Bessel滤波器 绘出滤波器的复数频率特性 频率为横轴绘幅频响应-Bessel filter

利用分布参数系统的传递函数法对带有扩展层的约束阻尼梁进行编程分析，得到频率响应曲线，并获得位移峰值对应的频率，即固有频率。(The transfer function method of distributed parameter system is used to analyze the constrained damping beam with extended layer, and the frequency response curve is obtained, and the freq