TY - JOUR TI - Optimal design of structural elements as a control theory problem AU - Laskowski, Henryk TI - Optimal design of structural elements as a control theory problem AB - In the paper an application of the maximum principle to designing a cross section of a still frame under several loading schemes is presented. The optimal height of the web under minimum volume of still as a cost function is determined. In particular the implicit and explicit conditions of state variables at characteristic points of axis of symmetry under different loading schemes are presented. VL - 2017 IS - Volume 6 Year 2017 (114) PY - 2017 SN - 0011-4561 C1 - 2353-737X SP - 119 EP - 134 DO - 10.4467/2353737XCT.17.092.6568 UR - https://ejournals.eu/en/journal/czasopismo-techniczne/article/optimal-design-of-structural-elements-as-a-control-theory-problem KW - optimal control KW - maximum principle