VisualDOC: A Software System for General Purpose Integration and Design Optimization

Author(s):  
Vladimir Balabanov ◽  
Christophe Charpentier ◽  
Dipankar Ghosh ◽  
Gary Quinn ◽  
Garret Vanderplaats ◽  
...  
2017 ◽  
Vol 45 (1) ◽  
pp. 71-84 ◽  
Author(s):  
Alexey Mazin ◽  
Alexander Kapustin ◽  
Mikhail Soloviev ◽  
Alexander Karanets

ABSTRACT Numerical simulation based on finite element analysis is now widely used during the design optimization of tires, thereby drastically reducing the time investment in the design process and improving tire performance because it is obtained from the optimized solution. Rubber material models that are used in numerical calculations of stress–strain distributions are nonlinear and may include several parameters. The relations of these parameters with rubber formulations are usually unknown, so the designer has no information on whether the optimal set of parameters is reachable by the rubber technological possibilities. The aim of this work was to develop such relations. The most common approach to derive the equation of the state of rubber is based on the expansion of the strain energy in a series of invariants of the strain tensor. Here, we show that this approach has several drawbacks, one of which is problems that arise when trying to build on its basis the quantitative relations between the rubber composition and its properties. An alternative is to use a series expansion in orthogonal functions, thereby ensuring the linear independence of the coefficients of elasticity in evaluation of the experimental data and the possibility of constructing continuous maps of “the composition to the property.” In the case of orthogonal Legendre polynomials, the technique for constructing such maps is considered, and a set of empirical functions is proposed to adequately describe the dependence of the parameters of nonlinear elastic properties of general-purpose rubbers on the content of the main ingredients. The calculated sets of parameters were used in numerical tire simulations including static loading, footprint analysis, braking/acceleration, and cornering and also in design optimization procedures.


2020 ◽  
Author(s):  
D. G. Ksenofontov ◽  
V. N. Kostin ◽  
M. N. Atlasov

Author(s):  
Troels Andreasen ◽  
Henrik Bulskov ◽  
Jørgen Fischer Nilsson

This paper describes principles and structure for a software system that implements a dialect of natural logic for knowledge bases. Natural logics are formal logics that resemble stylized natural language fragments, and whose reasoning rules reflect common-sense reasoning. Natural logics may be seen as forms of extended syllogistic logic. The paper proposes and describes realization of deductive querying functionalities using a previously specified natural logic dialect called Natura-Log. In focus here is the engineering of an inference engine employing as a key feature relational database operations. Thereby the inference steps are subjected to computation in bulk for scaling-up to large knowledge bases. Accordingly, the system eventually is to be realized as a general-purpose database application package with the database being turned logical knowledge base.


1973 ◽  
Vol 6 (4) ◽  
pp. 237
Author(s):  
Liz Gibson

<p class="p1">The BIBCON file <span class="s1">management </span>system, designed for use <span class="s1">on </span>IBM 360 <span class="s1">sys</span>tem <span class="s1">equipment, </span>performs two basic functions: (1) it creates MARC <span class="s1">struc</span>tured, bibliographic records from untagged input data; (2) from these records it produces page image output for book catalogs. The system accepts data from several different input <span class="s1">devices </span>and can produce a <span class="s1">variety </span>of <span class="s1">output </span>formats by line printer, photocomposition, <span class="s1">or computer </span>output microform (COM).</p>


2011 ◽  
Vol 295-297 ◽  
pp. 1564-1567
Author(s):  
Yong Hong ◽  
Seokjun Yu ◽  
Jaejung Lee ◽  
Hyeonsu Ha ◽  
Dong Pyo Hong

The multi-stage boom consisting of several booms is used in order to develop the aerial platform truck that can be used in a working radius that is higher and safe. Because the length increases compared with the width or the height of the structure, the intensity and rigidity are lowered along with the safety. Accordingly, a countermeasure is needed. Therefore, in this research, when designing of the high ground work difference Boom System, the safety the stress of the considered boom the analyze method and experimental method tries to be evaluated through the comparison. The finite-element analysis(FEA) compared the Strain value which is obtained through the resolution value and actual experiment by using the Ansys,that is the general purpose program, and proved this safety.


2000 ◽  
Author(s):  
Dipankar Ghosh ◽  
John Garcelon ◽  
Vladimir Balabanov ◽  
Gerhard Venter ◽  
Garret Vanderplaats

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