可振动的
1.If a certain peak value is too high, it will have greater influence on the intensity of the vibration noise of the whole structure, the corresponding measure can be taken according to the form of the structure vibration to change the modal natural frequency, damping, stiffness and quality of the step, making the natural frequency of the structure move to the hard vibration area.
2.The modal test of V12 diesel block is carried out using the modal analysis function of CRAS V4.3 that is a random signal and vibration analysis system,the parameters and modal shapes are acquired. The inherent frequencies and modal shapes of the first five modes are obtained respectively. The results show the characteristics of vibration in every part,and some modifying suggestion to the block is also provided.
4.Whereas a classical violin string will vibrate no matter what the properties of space and time are, a quantum string is more finicky.
5.Series of screen-Bohou adopt large amplitudes, big intensity of vibrations , flexible screen surfaces, the motion parameters characteristics of adjustable amplitudes; the unique structural features of " board of screen active, box inactive, unattached vibration of the screen surface "; though segmented, multi-segments of screen surface jointed, large-scale of screen equipments can be realized, the advantages of large area , big handling capacity and no special requirements to the water of materials make the screen to be the best screen equipments used for the small wet materials .
6.1.Designing the automatic measure instrument with the vibration measuring principle of linear CCD, the technique of FPGA/CPLD and EPP.
8.Through additional sensor and signal processing device, the measurement and analysis can be carried out on the vibration parameters of vehicles with vertical vibration and longitudinal angular vibration under a non-coupling condition, and then carrying out quantitative analysis and research on the effect of vibration reduction of vehicles suspension system.
9.By using the instrument,the maps of building block at bob,highspeed civcumglate and cycle atheletics which include the oneness and plural location dormancy can be computed,atheletices locus at slow motion of building block slow motion can be looked into.
10.A simple and practical measuring method for vibrating amplitudes of CD ROM vibrating with a frequency of 1.5 kHz and CD cracks is proposed.
