According to shaft center orbits,frequency coupling 3D plot, frequency spectrum and bifurcation plot, nonlinear characteristic of period, quasiperiod and chaos in rub-impact was analyzed, which illuminated the characteristics of chaos and outburst in rubimpact. Experimental results suggested that: with ...
quasi-NPR bolts have been processed and manufactured. This project plans to adopt the support method of combining long and short quasi-NPR bolts for the stability of the tunnel. A quasi-NPR bolt with a diameter of 18 mm was tensioned in the laboratory with a large deformation bolt testing ...
calculating the Fourier spectrum of the driving force with a fixed sinusoidal dynamical variable, we are able to obtain a complete description of the characteristic curves of the nonlinear system. Furthermore, as it is shown in this work, these expressions show an equivalence between the Fourier a...
Kulesza,Zbigniew - 《Journal of Sound & Vibration》 被引量: 7发表: 2014年 Quasi-Static Cyclic Test on a Concrete-Encased Frame-Reinforced Concrete Tube Building Model Hindawi Shock and Vibration Volume 2018, Article ID 5643872, 14 pages https://doi.org/10.1155/2018/5643872 Research Article Qua...
Plants belonging to the genus Hypericum (Hypericaceae) are recognized as an abundant source of natural products with interesting chemical structures and in
Lasing experiment of inorganic liquid system pumped bilaterally with laser diode array under flowing state is carried out,and the smooth quasi continuous-wave laser output for long time is achieved.The average laser output power is higher than 10 W when the pumping frequency is 300 Hz,and the ...
And by setting the value of each attribute the literal sequences are transformed into quasi numeric vectors, based on which a decision tree (C4.5 Algorithm) model is built to predict splice sites. The experimental results indicate that compared with the improved Maisheng Yin's motif-scoring ...
Exploring the Resonant Characteristic of Third Order Passive Filter based Quasi-Z-Source Inverter grid-connected invertersLCL filterpassive dampingImpedance Source Inverter (ZSI) offers solution to low output renewable energy sources, provides unconventional ... AK Yadav,VK Deolia,S Agrawal - 《Internati...
Some ablation experiments of Ethylene-Propylene-Diene Monomer(EPDM)insulator were carried out in quasi-static low temperature gas environment,gas-phase environment,two-phase environment with Al2O3 grain and high concentration Al2O3 grain gas environments.Their charring ablation rate,thickness,surface ...
In order to deeply research the generation and control of pressure impulse, the mathematical model of fluid inside pipeline was established based on characteristic method. 为了深入研究压力脉冲的形成与控制,论文应用特征线法建立了管内流体的数学模型,并针对正弦波与梯形波两种试验波形,根据管内流体的数学模型...