Vibration

一、Implement Steps 1.1 Matrix Calculation （3）According to provided conditions, if it is not relative to the center position, it may be the following expression（From the content in reference [3] ,but is not provided in the program） （4）There is another form of expression, with only two angles（From the content in reference [1] ,but is not provided in the program） 1.2 Nature frequency and mode of vibration 二、Code 三、Correctness Verification Data： Table 1 Mass and inertia parameters of powertrain (kg，kg·m²) m $I_x$ $I_y$ $I_z$ $I_xy$ $I_yz$ $I_zx$ 227.33 16.87 7.92 16.55 -2.47 2.95 -0.95 The above data can be measured using a three...