The natural frequencies obtained from the experiment are very high, and the first few frequencies of your modal analysis are far less than the natural frequencies of the parts, which can preliminarily show that your parts will not vibrate when working!

But at the same time, you should also look at the high-order frequency of modal analysis, the one with the smallest difference from the natural frequency of the machine, and see how much difference. If there is little difference, the parts may still vibrate.

Personally, I think that only the low-order frequency is considered in this paper because the vibration amplitude of the low-order frequency is large, while the vibration amplitude of the high-order frequency is small, so from the perspective of harm effect, the low-order is greater than the high-order, so only the low-order is considered in general papers; Another reason is that many papers have no test data and do not know the natural frequency of the parts, so they can only compare the low-order frequencies. Now the papers are also rubbish (not all of them, of course, to avoid being sprayed, hehe), so the landlord can consider so much, which shows that the landlord is seriously thinking!

The above views may not be correct, welcome to communicate at any time!