The damping constant of an IMPATT diode has been analytically determined and a relation in avalanche frequency and avalanche frequency at critical damping is obtained. A similar relation obtained for the bias current too, which is valid for arbitrary signal levels. It is assumed that the avalanche...
Suppose the second-order RLC serial circuit is under critical-damping condition, larger L will cause it changing into what type?A.over-dampingB.critical-dampingC.under-damping的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜
For any high frequency vibration tests, mechanical signal path integrity is very important. In other words, from the source to the sensor, there must be no attenuation (due to damping) nor amplification (due to resonance) of the vibration signal. In Figure 4 an aluminium mounting block (EVAL...
motors, bearings, and critical machine components. The SM 1281 can be used together with an S7-1200 CPU (FW 4.1 or higher) as a stand-alone monitoring system. Other features • 4 VIB sensor channels for vibration signal monitoring • 1 digital input for speed measurement (optionally ...
We aim to prove the finite time blow-up of the solution at critical energy level or high energy level with the nonlinear damping term on boundary in control systems. References [1] (1975) Sobolev Spaces. New York: Academic Press. [2] Well-posedness and optimal decay rates for the wave...
The need for adaptation at critical operating points is demonstrated in Figure 40.28. Two sets of gains are used, each designed for a specific operating point. The graphs show that the gains designed for one case may not be used in the other. When the wrong gains are used, instability occu...
Global well-posedness of wave equation with weak and strong damping terms p-Laplacian and logarithmic nonlinearity source term energy is subcritical, a sufficient condition for the solutions to blow up in finite time is derived, by combining the Nehari manifold with concavity ... X Wu,X Yang,L...
where D=(K+ɩωC−ω2M) and K, C, and M are the stiffness, viscous damping and mass matrices, respectively. Imposing the wave propagation conditions in the y direction allows reduction of the dimension of Eq. (1). Under the free passage of a wave whose wavenumber component in the ...
The cone angle of attack for which contact plastic deformation occurs for both the asperity and the substrate is the critical angle αc=αcc. The effect of the hardness ratio r=H2/H1, and the ratio f=τc/Rt1,2 of the shear strength τc of contact between asperity and substrate to the...
Superthermal ions in tokamak plasmas play a critical role in heating and current drive, and their confinement within the core of the plasma is crucial for ... CM Muscatello - Dissertations & Theses - Gradworks 被引量: 4发表: 2012年 Linear Stability Results for High-Velocity Boundary Layers ...