Based on analysis of problems existed in application of inertial vibrosieve,the new type variable frequency hydraulic straight-vibrating sieve is introduced.
It explains the reason of gentle breeze syntony about sustained tubate generatrix in hydromechanical viewpoint,and puts forworld several methods for avoiding gentle syntony.
BACKGROUND: Various investigative tools, including direct visualization with stroboscopy and indirect observation with glottography, have been widely used for the observation of vocal fold vibration.
Dual light path Laser Doppler Vibrameter System that can meet the out-of-plane vibration measurement for the slope plane and any curved surfaces is first proposed.
It is composed of the XD-I vibroscope based on the string vibration and the XQ-I fibre tensile tester with pneumatic clamp operating and data processing function.
Except the centralized load impressed from plane other components and airload, the plane gun bay structure is also endured the wallop of the navigate gun launching.
The cantilever taps across the surface with metronomic precision.But as it moves, it also behaves much like a tuning fork, producing overtones related to the fundamental vibration.
This paper introduces the principles of the vibroplatform,provides some methods for the detection and diagnosis of the servo valve,and makes the field monitoring of the synchronism of vibroplatform.
Elastic coupling is commonly used in roating machinery for connecting two shafts and delivering the power, for example, the spline coupling between engine and reducer or hydrodynamometer.
Based on the correlation principle, an algorithm to decomposite the damped free vibration signals of a two degrees of freedom system with close natural frequencies is put forward.
DNA - the ancient cabalistic Tree Of Life portrayed in the Biblical Torah, is now coming to be viewed as a live vibrating structure, rather than a fixed tape recording.