A new approach for analysis and design of NRD-guide filters

1991 ◽  
Author(s):  
Shanjia Xu
Keyword(s):  
New Approach ◽  
Analysis And Design ◽  
Nrd Guide

An Experimental and Numerical Study to Analysis and Design of Sheet Hydroforming Process for an Automobile Fender Shell

2006 ◽  
Author(s):  
Mohammad Habibi Parsa ◽  
Payam Darbandi
Keyword(s):  
Finite Element ◽  
Numerical Study ◽  
Fluid Pressure ◽  
Finite Element Program ◽  
New Approach ◽  
Explicit Finite Element ◽  
Sheet Hydroforming ◽  
Analysis And Design ◽  
Hydroforming Process ◽  
Element Program

A new approach for manufacturing of shell fender is proposed and has been examined numerically and experimentally. The new suggested method is based on sheet hydroforming process, which has a lot of advantages over conventional deep drawing process. After defining the shape of initial blank using an inverse finite element program, numerical evaluation of the proposed sheet hydroforming process for production of shell fender has been carried out using an explicit finite element code considering fluid pressure, boundary conditions and tools. Then experimental evaluation has been carried out using down sized specimen and the results have been compared with results of previous simulations. It has been shown that there are similar trends between finite element and experimental results.

scholarly journals Antisystem-Approach (ASA) for Engineering of Wide Range of Dynamic Systems

2021 ◽  
Vol 3 (1) ◽  
pp. 52-66
Author(s):  
Serge Zacher
Keyword(s):  
Mathematical Model ◽  
Dynamic System ◽  
Dynamic Systems ◽  
Chemical Engineering ◽  
Original System ◽  
New Approach ◽  
Analysis And Design ◽  
Wide Range ◽  
Newton’S Laws ◽  
Definition Of

Following the famous third physical Newton’s laws, “for every action there is an equal and opposite re-action”, a new approach for analysis and design of dynamic systems was introduced by [Zacher, 1997] and called «Antisystem-Approach» (ASA). According to this approach, a single isolated dynamic system does not exist alone. For every dynamic system, which transfers its inputs into outputs with an operator A in one direction, there is an equal system with the same operator A, which transfers other inputs into outputs in opposite direction. The antisystem does not have to be a physical system; it can also be a mathematical model of the original system. The most important feature of ASA is the exact balance between a system and its antisystem, which is called “energy” or “intensity”. In the group theory the system and antisystem are denote as antisymmetric. They build duality, which is common in many branches of sciences as mathematics, physics, biology etc. In the twenty years since first publication of the ASA there were developed different methods and applications, which enable to simplify the engineering, analysing the antisystem instead of original system. In the proposed paper is given the definition of ASA und are shown its features. It is described, how the ASA was used in electrical and chemical engineering, automation, informatics. Only several applications will be discussed, although ASA-solutions are common and could be used for wide range of dynamic systems.

Study on Dynamic Calculation Method of Anti-Slide Pile

2014 ◽  
Vol 578-579 ◽  
pp. 402-406
Author(s):  
Tian Zhong Ma ◽  
Yan Peng Zhu
Keyword(s):  
Seismic Design ◽  
Analytical Solutions ◽  
Calculation Method ◽  
Seismic Analysis ◽  
Calculation Model ◽  
Dynamic Calculation ◽  
New Approach ◽  
Analysis And Design ◽  
Supporting Structure ◽  
Prestressed Anchor

A dynamic calculation model of the pile supporting structure with single prestressed anchor for the slope is proposed in this paper. The motion equation of the pile-prestressed anchor is established and the analytical solutions are obtained. In addition the proposed method is applied to a project case to carry out the seismic analysis and design of the pile supporting structure with single prestressed anchor. The calculation model provides a new approach for earthquake analysis and seismic design of slope supported by pile supporting structure with pre-stress anchor.

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