Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Z. Kowal"'
Publikováno v:
Journal of Machine Engineering. 19:27-41
This paper deals with the precision modelling of the ball screw unit’s thermal behaviour in the turning centre and its impact on the tool head positioning error. The error components along controllable axes X and Z are described in detail using an
Publikováno v:
International Journal of Nanomanufacturing. 16:29
This paper presents an FEM model of a feed drive with a ball screw stiffness-wise, thermally and motion-wise integrated with the machine tool structure. The model takes into account the moving heat sources, the frictional and inertial interaction of
Publikováno v:
Archives of Civil Engineering, Vol 61, Iss 3, Pp 119-132 (2015)
The study presents the summary of the knowledge of energy-active segments of steel buildings adapted to obtain electrical energy (EE) and thermal energy (TE) from solar radiation, and to transport and store TE. The study shows a general concept of th
Autor:
Z. Kowal, R. Piotrowski
Publikováno v:
Journal of Civil Engineering, Environment and Architecture. :189-196
Autor:
Z. Kowal
Publikováno v:
Archives of Civil Engineering, Vol 60, Iss 1, Pp 77-90 (2014)
The paper presents the method of probabilistic optimisation of load bearing capacity and reliability of statically indeterminate bar structures, and of coupling of members in kinematically admissible failure mechanisms (KAFM), which contain minimal c
Autor:
Z. Kowal
Publikováno v:
Archives of Civil Engineering, Vol 59, Iss 1, Pp 131-142 (2013)
The paper provides a solution to the problem of dimensioning decisive bars on the basis of the conditions of meeting the recommended reliability classes [9] of statically determinate structures composed of n members. A theorem was formulated: if a st
Autor:
Z Kowal
Publikováno v:
Metal Structures 2016: Proceedings of the XIII International Conference on Metal Structures (ICMS2016, Zielona Góra, Poland, 15-17 June 2016)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f044d50d521e733eacfafa7c53de3fa1
https://doi.org/10.1201/b21417-77
https://doi.org/10.1201/b21417-77
Autor:
Z. Kowal
Publikováno v:
Archives of Civil and Mechanical Engineering. 11:115-133
This paper presents the estimation of the carrying capacity of space structures with the use of the reliability theory and quantile algebra. Structures with rectangular meshes with every other blank mesh are shown to be economically competitive in re
Autor:
Z. Kowal, W. Basiński
Publikováno v:
Architecture, Civil Engineering, Environment. 10(1):53
The study presents the means of increasing resistance of girders with corrugated web by enhancing their shear resistance due to the application of diagonal braces subjected to advantageous tension. Diagonal braces were used in the near-support zones,
Publikováno v:
MM Science Journal. 2008:40-43