Presentation 8. Towards a dynamic design architecture

2014 ◽  
Author(s):  
George Hurlburt
Keyword(s):  
Dynamic Design

On modeling and dynamics of a multiple launch rocket system

2021 ◽  
pp. 095441002098224
Author(s):  
Bo Li ◽  
Xiaoting Rui ◽  
Guoping Wang ◽  
Jianshu Zhang ◽  
Qinbo Zhou
Keyword(s):  
Monte Carlo ◽  
Multibody Systems ◽  
Euler Method ◽  
Dynamics Analysis ◽  
Analysis Problem ◽  
Dynamic Design ◽  
Proposed Model ◽  
And Control ◽  
Rocket System ◽  
Complete Process

Dynamics analysis is currently a key technique to fully understand the dynamic characteristics of sophisticated mechanical systems because it is a prerequisite for dynamic design and control studies. In this study, a dynamics analysis problem for a multiple launch rocket system (MLRS) is developed. We particularly focus on the deductions of equations governing the motion of the MLRS without rockets by using a transfer matrix method for multibody systems and the motion of rockets via the Newton–Euler method. By combining the two equations, the differential equations of the MLRS are obtained. The complete process of the rockets’ ignition, movement in the barrels, airborne flight, and landing is numerically simulated via the Monte Carlo stochastic method. An experiment is implemented to validate the proposed model and the corresponding numerical results.

scholarly journals A Novel S-Box Dynamic Design Based on Nonlinear-Transform of 1D Chaotic Maps

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1313
Author(s):  
Wenhao Yan ◽  
Qun Ding
Keyword(s):  
Chaotic Systems ◽  
Chaotic Maps ◽  
Chaotic Map ◽  
Logistic Map ◽  
Sample Entropy ◽  
One Dimension ◽  
Linear Combinations ◽  
Dynamic Design ◽  
Construction Methods ◽  
Low Dimensional

In this paper, a method to enhance the dynamic characteristics of one-dimension (1D) chaotic maps is first presented. Linear combinations and nonlinear transform based on existing chaotic systems (LNECS) are introduced. Then, a numerical chaotic map (LCLS), based on Logistic map and Sine map, is given. Through the analysis of a bifurcation diagram, Lyapunov exponent (LE), and Sample entropy (SE), we can see that CLS has overcome the shortcomings of a low-dimensional chaotic system and can be used in the field of cryptology. In addition, the construction of eight functions is designed to obtain an S-box. Finally, five security criteria of the S-box are shown, which indicate the S-box based on the proposed in this paper has strong encryption characteristics. The research of this paper is helpful for the development of cryptography study such as dynamic construction methods based on chaotic systems.

Analysis of Plastic-Zone Radius Influenced by Mechanical Parameters in Tunnel Excavation and Support

2012 ◽  
Vol 238 ◽  
pp. 787-790
Author(s):  
Zhong Ming Su ◽  
Rui Liu
Keyword(s):  
Plastic Zone ◽  
Axial Force ◽  
Analytical Formula ◽  
Mechanical Parameters ◽  
Circular Tunnel ◽  
Tunnel Excavation ◽  
Dynamic Design ◽  
Elastic Plastic ◽  
Zone Radius ◽  
Plastic Theory

According to the elastic-plastic theory, the analytical formula of plastic zone radius is established for circular tunnel in its excavation and support, and the effect of anchor support is verified based on the radius of plastic zone from the perspective of measured axial force. The influences to plastic zone by the variations of mechanical parameters and resistance of support are quantitatively analyzed. The result is of great significance to the monitoring measurement and the dynamic design and construction of tunnel.

Optimal dynamic design of anthropomorphic robot module with redundant actuators

KSME Journal ◽  
1996 ◽  
Vol 10 (3) ◽  
Author(s):  
Sang Heon Lee ◽  
Byung-Ju Yi ◽  
Yoon Keun Kwak
Keyword(s):  
Dynamic Design ◽  
Redundant Actuators ◽  
Optimal Dynamic

The Design and Application of Dynamic Symbol

2013 ◽  
Vol 442 ◽  
pp. 645-649
Author(s):  
Jing Wen Huang ◽  
Kun Qian Wang ◽  
Pei Hao Chen ◽  
Jian Bao ◽  
Pei Zhi Zhao
Keyword(s):  
Digital Media ◽  
Visual Language ◽  
Language Design ◽  
Media Art ◽  
Dynamic Design ◽  
Special Effects ◽  
Design Time ◽  
Design Philosophy ◽  
Dynamic Symbol ◽  
The Times

With the development of digital media art,the modern sign emerges as the times require. This article mainly discusses the design philosophy of dynamic symbol in modern signs ,covering two aspects on visual language design ( dynamic design,time design and The special effects design ) and auditory language design ,and how to properly apply the dynamic symbol into propaganda of local Corporate Logo and boot animation.

A CONTRIBUTION TO DYNAMIC DESIGN OF RAILWAY TRACK

1992 ◽  
Vol 20 (sup1) ◽  
pp. 195-209 ◽  
Author(s):  
Stuart L. Grassie
Keyword(s):  
Railway Track ◽  
Dynamic Design
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