Conductor, which is in the condition of aeolian vibration for long period,will transfer vibration to the composite insulator,so composite insulator is frequently subjected to vibrational fatigue *** paper takes a 500k...
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The parameters of suspension system cannot change according to the road excitation, and the system can only store or exhaust the body vibration energy. The active suspension system can improve both the riding comfort ...
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ISBN:
(纸本)9780769542966
The parameters of suspension system cannot change according to the road excitation, and the system can only store or exhaust the body vibration energy. The active suspension system can improve both the riding comfort and handing safety in various operation conditions. The least means squares adaptive algorithm is used in active suspension system. For the least means squares adaptive algorithm, the minimum quadratic performance index is obtained according to adjusting the weight of the adaptive filter. For vehicle suspension model, the sky-hook control, generalized adaptive control and least means squares adaptive control are studied. For least means squares adaptive control suspension, compared with passive suspension, acceleration decreases largely as 8-10 times in study frequency domain. The simulation calculation results that the least means squares adaptive control strategy may largely improve the performances of the suspension system.
Real-time data collection about the drilling process is an effective way of improving the drilling efficiency. Drillstring acoustic telemetry is an alternative wireless transmission method to retrieve downhole data. A...
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This paper analyzes the varying mechanism of the parameters which effect the DTG (Dynamically Tuned Gyroscope) long-term stability in storage conditions. On the basis of the analysis result above, the finite element m...
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Put forward the concept of multilevel hybrid power system of pneumatic-Fuel Vehicle, composed of the gasoline engine and pneumatic motor which is droved by the admixture of compressed air and engine exhaust gas so as ...
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For the need of leak detection of thermal plastic seal bottles in beverage production enterprise, this article describes the research and development of a data acquisition, storage and analysis software system with th...
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To make the motion analysis of cam mechanisms, we develop software to help us achieve it with the aid of the three-coordinates measuring machine and the three-coordinates measuring machine scanner that can indicate th...
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as the most important assembly affecting passengers' safe, automobile seat must meet the requirements of the national standard GB 15083-2006 and even stricter company standards. Seat recliner, which is the major s...
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Field-annealed Co-based amorphous ribbon (Metglas® 2705M) with a tortuous structure is fabricated by MEMS technology and the giant magnetoimpedance (GMI) effects are studied at various magnetic field and frequenc...
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This paper models and studies the dynamic characteristics of slewing system of 80T truck crane. Analyzing the composition and working principle of the hydraulic system, and building the model of slewing system based o...
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ISBN:
(纸本)9780769542966
This paper models and studies the dynamic characteristics of slewing system of 80T truck crane. Analyzing the composition and working principle of the hydraulic system, and building the model of slewing system based on AMESim, then testing the model. And the simulation analysis results indicate the factors which affect the dynamic characteristics of the system and propose the measures to improve them. The results show that adopting the bypass circuit makes the shock pressure reduced 18 percent when the system operates;besides, changing the system's control strategy and installing one-way throttle enhance the stability of braking obviously.
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