Numerical Simulation and Mechanism Study of Two Level Partial Blocks Vibration Motor

2011 ◽  
Vol 396-398 ◽  
pp. 2463-2466
Author(s):  
Xiao Lan Yang ◽  
Ji Feng Liu ◽  
Jing Chao Zou
Keyword(s):  
Numerical Simulation ◽  
Power Spectrum ◽  
High Intensity ◽  
Mechanical Model ◽  
Mechanism Study ◽  
Lagrange Method ◽  
Special Operations ◽  
Chaotic Vibration ◽  
Vibrating System ◽  
Initial Sensitivity

In order to finish some special operations, the chaotic vibrating motor with two-level partial blocks is constructed. Mechanism principles are designed and dynamics of mechanical model is analyzed by using Lagrange method. Based on the initial sensitivity, non-repetition and complexity of phase-trajectory, many characteristics of chaotic vibration are verified in the vibrating system. It is found the vibrating system with wide power spectrum can achieve some special properties like transient high-intensity, super high-intensity and large vibrating amplitude. It is important to overcome some work barriers and solve some technological bottlenecks of vibrating machinery.

Shock and Sine Response of Rigid Structures on Nonlinear Mounts

1991 ◽  
Author(s):  
R. Dufour ◽  
J. Der Hagopian ◽  
M. Pompei ◽  
C. Garnier
Keyword(s):  
Numerical Simulation ◽  
Power Spectrum ◽  
Dynamic Behavior ◽  
Dynamic Environment ◽  
Rigid Bodies ◽  
Nonlinear Parameters ◽  
Large Power ◽  
Passive Damper ◽  
Highly Nonlinear

Abstract The dynamic environment of embarqued structures such as radars or more generally electronic equipments consists of impacts, sine and large power spectrum excitations. Under these real conditions and amongst different kinds of isolation, the passive damper with nonlinear parameters can provide good performances. This paper is concerned with the dynamic behavior of rigid bodies on highly nonlinear mounts. The numerical simulation and the experiment carried out, show that the load-deflection behavior of the dampers have to be slightly ajusted with respect to impact vibrations to obtain a well designed behavior.

Focus Control Aided by Numerical Simulation in Heterogeneous Media for High-Intensity Focused Ultrasound Treatment

2013 ◽  
Vol 52 (7S) ◽  
pp. 07HF01 ◽  
Author(s):  
Ryuta Narumi ◽  
Kosuke Matsuki ◽  
Shigeru Mitarai ◽  
Takashi Azuma ◽  
Kohei Okita ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Intensity ◽  
Focused Ultrasound ◽  
Heterogeneous Media ◽  
High Intensity Focused Ultrasound ◽  
Ultrasound Treatment

Numerical simulation and experiment of high-intensity current pulsed impact on structure body

2010 ◽  
Vol 22 (3) ◽  
pp. 659-663 ◽  
Author(s):  
李敏堂 Li Mintang ◽  
严萍 Yan Ping ◽  
袁伟群 Yuan Weiqun ◽  
孙鹞鸿 Sun Yaohong ◽  
孙连华 Sun Lianhua ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Intensity ◽  
Simulation And Experiment

Numerical Simulation of DC Casting; Interpreting the Results of a Thermo-Mechanical Model

2016 ◽  
pp. 933-938 ◽  
Author(s):  
Wim Boender ◽  
André Burghardt ◽  
Erik Paul van Klaveren ◽  
Jan Rabenberg
Keyword(s):  
Numerical Simulation ◽  
Mechanical Model ◽  
Dc Casting

scholarly journals A Tetra-State Hopping Robot Driven by Shape Memory Alloy Spring

2011 ◽  
Vol 2-3 ◽  
pp. 402-407 ◽  
Author(s):  
Tian Qi Liu ◽  
Shu Ping Chen ◽  
Jiang Long Guo ◽  
Zhi Long Dou ◽  
Chun Liu ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Mechanical Model ◽  
Lagrange Method ◽  
Hopping Robot ◽  
Jumping Robot

According to the characteristics of jumping locomotion, a solution of Tetra-state Hopping Robot (for short: THR) actuated by Shape Memory Alloy Spring (for short: SMAS) is presented in this paper. This article establishes a mechanical model of the jumping robot and analyzes the kinematics and the dynamics of the mechanical model. Lagrange method is applied to analyze the dynamics the mechanical model. Meanwhile, a preliminary explanation of the THR flipping phenomenon during the take-off and flight process is conducted from the perspective of momentum moment.

scholarly journals Numerical simulation of high-intensity metal ion beam generation

2018 ◽  
Vol 1115 ◽  
pp. 032007 ◽  
Author(s):  
T V Koval ◽  
A I Ryabchikov ◽  
Tran My Kim An ◽  
A R Shevelev ◽  
D O Sivin ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Intensity ◽  
Metal Ion ◽  
Ion Beam ◽  
Beam Generation

scholarly journals Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining

2020 ◽  
Vol 24 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Pu Wang ◽  
Lishuai Jiang ◽  
Changqing Ma ◽  
Anying Yuan
Keyword(s):  
Numerical Simulation ◽  
Mechanical Model ◽  
Scientific Basis ◽  
Pull Out ◽  
Induced Stress ◽  
Working Face ◽  
Geological Conditions ◽  
Evolution Laws ◽  
The Stability

The study of evolution laws of the mining-induced stress in floor strata affected by overhead mining is extremely important with respect to the stability and support of a floor roadway. Based on the geological conditions of the drainage roadway in the 10th district in a coalmine, a mechanical model of a working face for overhead mining over the roadway is established, and the laws influencing mining stress on the roadway in different layers are obtained. The evolution of mining stress in floor with different horizontal distances between the working face and the floor roadway that is defined as LD are examined by utilizing UDEC numerical simulation, and the stability of roadway is analyzed. The results of the numerical simulation are verified via on-site tests of the deformation of the surrounding rocks and bolts pull-out from the drainage roadway. The results indicate that the mining stress in floor is high, which decreases slowly within a depth of less than 40 m where the floor roadway is significantly affected. The mining stress in the floor increases gradually, and the effect of the mining on the roadway is particularly evident within 0 m ≤ LD ≤ 40 m. Although the floor roadway is in a stress-relaxed state, the worst stability of the surrounding rocks is observed during the range -20 m ≤ LD < 0 m, in which the negative value indicates that the working face has passed the roadway. The roadway is affected by the recovery of the abutment stress in the goaf when -60 m ≤ LD <20 m, and thus it is important to focus on the strengthening support. The results may provide a scientific basis for establishing a reasonable location and support of roadways under similar conditions.

Numerical Simulation of the Temperature Field of Silumin Irradiated by a High-Intensity Electron Beam

2015 ◽  
Vol 58 (4) ◽  
pp. 478-484 ◽  
Author(s):  
Yu. F. Ivanov ◽  
E. A. Petrikova ◽  
O. V. Ivanova ◽  
I. A. Ikonnikova ◽  
A. V. Tkachenko
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Electron Beam ◽  
High Intensity

Six-Dimensional Chaotic System and its Circuit Implementation

2011 ◽  
Vol 255-260 ◽  
pp. 2018-2022 ◽  
Author(s):  
Jian Liang Zhu ◽  
Yu Jing Wang ◽  
Shou Qiang Kang
Keyword(s):  
Numerical Simulation ◽  
Power Spectrum ◽  
Chaotic System ◽  
Time Domain ◽  
Circuit Simulation ◽  
System Simulation ◽  
Practical Significance ◽  
Chaotic Attractors ◽  
Circuit Implementation ◽  
Product Term

In order to generate complex chaotic attractors, a six-dimensional chaotic system is designed, which contains six parameters and each equation contains a nonlinear product term. When its parameters satisfy certain conditions, the system is chaotic. By Matlab numerical simulation, chaotic attractor and relevant Lyapunov exponents spectrum can be obtained, which validates that the system is chaotic. And, time domain waveform and power spectrum are shown. Finally, the implementation circuit of this system is designed, and circuit simulation can be done by using Multisim. Circuit simulation result is identical to system simulation completely. The circuit has a practical significance in secrecy communication and correlative fields.

Sign in / Sign up

Export Citation Format

Share Document