Through signal processing, the system also have such functions as: separation between signal and noise , measurement of the vibration power spectrum of motor ,measurement of companion contain noise the primitive vibration wave of motor ,and measurement of noise wave .
The vibration of EDM machine tool spindle is analysed in this article,the vibration wave form is detected, the spindle vibration fashion and spindle transfer function are established,some ideas to weaken the spindle vibration are presented
In the established numerical model,the ground and excavating boundaries are regarded as free ones,others as fixed ones,and a measured vibration wave is taken as the import load in numerical calculations.
The vibration equipment adopts the hydraulic pressure vibration system (INMO system ) of the mould that made in Danieli Company , the characteristics that vibration quality is small , the amplitude , frequency and vibration wave form are adjustable, thus improved the lubricated effect of the copper wall of the mould and the casting blend surface, the vibration shaken of blend is reduced, the blend surface is imploved,the breaking out is reduced.
This paper described an intelligent steel wire tension detecting system utilizing vibration wave,with high sensibility vibration sensor and single-chip microcomputer as main body. The system can measure tension differences between ropes in multi-rope hoisting conveniently, quickly and fairly accurately.
According to the theory of propagation of seismic wave in one-dimensional bedded medium, vibration wave may cause a reflection similar to that of the phase of incident wave on the condition of presence of karst cave.
On the basis of the similar reflection of vibration wave and the strength and the coming time of reflected wave, the karst cave and its position of the e-#O xcavated hole pile on the condition of the holding power layer of limestone may be discriminated.
From the actual measurement of the vibration wave induced from train with the geological condition of Karst collapse nearby railway,the vibration wave process and damping features of the wave are analyzed and discussed.
Then, using the vibration wave diagram, the dynamic relation curves between the force (P) and the displacement (S) is calculated and the yield points are determined. Using the static-loading test, the dynamic results are checked and the relative constants of dynamic-static P-S curves are determined. Then the subsidence quantity corresponding to the bearing capacity is determined.
The blasting vibration observation result of the north high slope of Jinduicheng open pit mine is introduced. Transmitting principle of blasting vibration wave on the slope is analyzed. The blasting vibration wave attenuation formulas suitable for the slope are achieved.
In order to research the blasting vibration wave and the demolition influence of blasting vibration wave to the constructions and buildings,the disperse wavelet transform was used to analyze the blasting vibration wave of the medium-to-deep blast holes and de-noise it. The blasting vibration wave by time-energy analysis and spectra analysis were analyzed.