Nu se pretează? Nu contează! La noi puteți returna bunurile în 30 de zile
Cu un voucher cadou nu veți da greș. În schimbul voucherului, destinatarul își poate alege orice din oferta noastră.
30 de zile pentru retur bunuri
Chapter 2 of this work brings together a full set of analytical tools to generate structural layouts which satisfy dual-material optimality conditions.§Chapter 3 of the dissertation is concerned with methods to suppress local and global instability of least-weight structures. Perforated webs placed between structural members, structural member shape optimization and light-weight foam inserts are methods investigated in the research to address the instability problems. Simply supported least-weight arch beams were designed and mechanically tested. The experimental results were compared with FEA.§In Chapter 4 matrix operator methods used to generate optimal layouts with straight boundaries were extended to include curved boundaries. A program previously written to solve straight boundary problems was generalized to generate layouts for cantilevers with curved boundaries by using this method.§In Chapter 5 the design of an arch structure with a continuous profiled-thickness web was analyzed.§In Chapter 6 optimal layouts with 2 and 3-bar trusses were investigated for two alternate loading cases. A program was written to determine the minimum-weight from alternative structures.