Zobrazeno 1 - 10
of 126
pro vyhledávání: '"W. Gutkowski"'
Publikováno v:
Measurement. 85:210-221
An experimental and analytical study of the relation between local defect, in a steel structure, and its higher frequencies and higher modes is discussed. The structure is a plane steel frame, assembled of beams, joined together with bolted connectio
Autor:
W. Gutkowski, Bartlomiej Blachowski
Publikováno v:
Engineering Structures. 111:93-103
The paper deals with non-linear analysis of a telecommunication tower with circular flange-bolted connections (CFBCs). They are composed of two flanges, welded to the structural tubes, and then connected together with pre-tensioned bolts. A rigorous
Autor:
Bartlomiej Blachowski, W. Gutkowski
Publikováno v:
Journal of Civil Engineering, Environment and Architecture. :5-14
The paper is concerned with a minimum weight design of composite floors subjected to dynamic loading, deriving from the rhythmic activity of a group of people. The floor structure consists of concrete slab cast, on thick trapezoidal deck, which is su
Autor:
Bartlomiej Blachowski, W. Gutkowski
Publikováno v:
Bulletin of the Polish Academy of Sciences: Technical Sciences. 62:91-102
In this study, a relatively simple method of discrete structural optimization with dynamic loads is presented. It is based on a tree graph, representing discrete values of the structural weight. In practical design, the number of such values may be v
Autor:
W. Gutkowski, Bartlomiej Blachowski
Publikováno v:
Structural and Multidisciplinary Optimization. 41:965-977
Many optimum structural designs are based on searching for the best of all combinations, arising from the number of structural members, and parameters of listed rolled profiles. Even, in a relatively simple design, the number of such combinations is
Autor:
W. Gutkowski, Bartlomiej Blachowski
Publikováno v:
Engineering Optimization. 40:685-694
A very simple method for finding the minimum weight of a structure designed from a list of available parameters is presented. The structure can be subjected to multiple loading conditions with constraints imposed on displacements, stresses and eigenf
Autor:
W. Gutkowski
The engineering design of structures and machines consists often in finding the best solution among a finite number of feasible decisions. This volume comprises problems and solution methods for discrete structural optimization. Exact, approximate an
Autor:
Jarosław Latalski, W. Gutkowski
Publikováno v:
Structural and Multidisciplinary Optimization. 30:1-10
The paper deals with the effect of dimensional imperfections of truss members on the minimum weight design of a structure. It is assumed that for each element its imperfections cannot exceed given a priori maximum values, called tolerances. The incor
Publikováno v:
Automation in Construction. 12:245-254
The primary focus of this study is to investigate the control of excavation processes by applying load-independent hydraulic valves. This approach allows avoiding closed loop control system with sensors and transducers mounted on the excavator attach
Autor:
Jarosław Latalski, W. Gutkowski
Publikováno v:
Engineering Optimization. 35:201-213
The paper deals with the effect of manufacturing imperfections in fiber orientations on the optimum design of laminate plates exposed to compression load. It is assumed that each dimensional imperfection cannot exceed one of two accepted values, call