Non-linear dynamic responses of a semiconductor gas sensor — Competition effect on the sensor responses to gaseous mixtures

2001 ◽  
Vol 391 (2) ◽  
pp. 293-298 ◽  
Author(s):  
S. Nakata ◽  
K. Neya ◽  
K.K. Takemura
Keyword(s):  
Gas Sensor ◽  
Dynamic Responses ◽  
Competition Effect ◽  
Gaseous Mixtures ◽  
Linear Dynamic ◽  
Semiconductor Gas Sensor ◽  
Non Linear

Analysis of the Non-Linear Dynamic Responses of an Elastic Rotor With a Slant Crack

2012 ◽  
Author(s):  
Xiangmin Zhang ◽  
Changping Chen ◽  
Liming Dai
Keyword(s):  
Equations Of Motion ◽  
Harmonic Balance Method ◽  
Rotor System ◽  
Dynamic Responses ◽  
Cracked Rotor ◽  
Lagrange Equations ◽  
Linear Dynamic ◽  
Slant Crack ◽  
Non Linear ◽  
Line Spring Model

Considering a rotor system with a slant crack, and using an equivalent line-spring model to simulate the slant crack of the rotor, the flexibility model of the slant-cracked rotor is derived. Then considered the geometric non-linearity and based on the Lagrange equations, the non-linear dimensionless differential equations of motion for the slant-cracked rotor are obtained. Further the non-linear dynamic responses of the single rotor system with a slant crack are discussed by the Galerkin method and the harmonic balance method. It’s detailedly studied that the angle, the depth and the position of the slant crack on the rotor all affect on the non-linear dynamic responses of the rotor system, and the conclusion is very significant to the design of the rotor system in the practical reference aspect.

scholarly journals Analytical Investigation on non-linear dynamic analysis of reinforced concrete building subjected to blast loading

2021 ◽  
Vol 850 (1) ◽  
pp. 012012
Author(s):  
R. Prashanthi ◽  
S. Elavenil
Keyword(s):  
Reinforced Concrete ◽  
Time History ◽  
Blast Loading ◽  
Analytical Investigation ◽  
Dynamic Responses ◽  
Blast Load ◽  
Reinforced Concrete Building ◽  
Linear Dynamic ◽  
Concrete Building ◽  
Non Linear

Abstract The blast explosion causes catastrophic failure of structure both externally and internally. In this work the analytical investigation is carried out on the blast performance of the reinforced concrete building frame. Reinforced concrete building connection is vital in the Moment Resistant Frames (MRF) and they play a vital role under constant blast load. It is important to design the building for blast loading since they are subjected to large displacements. The non-linear dynamic behavior of the building by time history analysis method is performed by using SAP2000 finite element stimulation software. Blast load is idealized as the triangular pulse for single degree of freedom system and the effect of the blast load at a different standoff distances on the building element is examined. The analytical method could predict the overall flexural, non-linear shear behavior and ductile response of the building at different modes. The results of the stimulations for various failure conditions such as maximum displacement, maximum base shear and spectral acceleration as per IS 1893-2016 for non-linear dynamic responses are investigated in this study.

Study on the Non-Linear Dynamic Stability of a Cracked Rotor System

2012 ◽  
Vol 605-607 ◽  
pp. 1138-1141
Author(s):  
Shu Qing Lv ◽  
Lin Tian ◽  
Guang Wei Zhao
Keyword(s):  
Multiple Scale ◽  
Dynamic Responses ◽  
Internal Damping ◽  
External Excitation ◽  
Response Curves ◽  
Linear Dynamic ◽  
Amplitude Frequency Response ◽  
Resonance Vibrations ◽  
Non Linear ◽  
Cracked Rotor System

The non-linear dynamic responses with one degree are studied and solved by the multiple-scale method and Newton-Raphson method.The prime resonance vibrations are discussed.It is analyzed that the values of external excitation,the internal damping of the shaft and the depth of the crack have effect on the amplitude frequency response curves.

Dynamic stability of a curved beam under sinusoidal loading

2002 ◽  
Vol 216 (4) ◽  
pp. 209-217 ◽  
Author(s):  
W Y Poon ◽  
C F Ng ◽  
Y Y Lee
Keyword(s):  
Dynamic Instability ◽  
Dynamic Responses ◽  
Critical Parameters ◽  
Small Oscillations ◽  
Linear Dynamic ◽  
Buckled Beam ◽  
Non Linear ◽  
Spring Type ◽  
Characteristic Features ◽  
Flat Beam

This paper is a study of snap-through properties of a non-linear dynamic buckling response to sinusoidal excitation of a clamped—clamped buckled beam. Using a simple formula, the highly non-linear motion of snap-through and its effects on the overall vibration response have been studied. The non-linear governing equation obtained here is solved using the Runge—Kutta (RK-4) numerical integration method. Critical parameters at the onset of the snap-through motion, which vary with different damping coefficients and linear circular frequencies of a flat beam, are studied and given in terms of the excitation level and response displacement. The relationships between static and dynamic responses at the start of the snap-through motion are also predicted. The analysis brings out various characteristic features of the phenomenon, i.e. (a) small oscillations about the buckled position, (b) chaotic motion of intermittent snap-through and (c) large oscillations of continuous snap-through motion crossing the two buckled positions. The non-linear dynamic instability behaviour of the beam, changing from the softening spring type to the hardening type, is due to the snap-through motion.

ChemInform Abstract: Selective CO Detection by Using Indium Oxide-Based Semiconductor Gas Sensor.

ChemInform ◽  
2010 ◽  
Vol 27 (26) ◽  
pp. no-no
Author(s):  
H. YAMAURA ◽  
J. TAMAKI ◽  
K. MORIYA ◽  
N. MIURA ◽  
N. YAMAZOE
Keyword(s):  
Gas Sensor ◽  
Indium Oxide ◽  
Semiconductor Gas Sensor ◽  
Co Detection
Sign in / Sign up

Export Citation Format

Share Document