In ship construction, line heating is a necessary process for forming plates with complex curvature. The determination of parameters has significant impact on the accuracy and efficiency shipbuilding. However, previous studies this subject only stay at level predicting deformation, which not meet actual processing production requirements. paper, new idea forecasting proposed. Firstly, an Radial...

In this study, two goals are followed. First, by means of the Generalized Differential Quadrature (GDQ) method, parametric analysis on the vibration characteristics of three-parameter Functionally Graded (FG) beams on variable elastic foundations is studied. These parameters include (a) three parameters of power-law distribution, (b) variable Winkler foundation modulus, (c) two-parameter elasti...

We analyze a simple random process in which a token is moved in the interval A = {0, . . . , n}: Fix a probability distribution μ over {1, . . . , n}. Initially, the token is placed in a random position in A. In round t, a random value d is chosen according to μ. If the token is in position a ≥ d, then it is moved to position a − d. Otherwise it stays put. Let T be the number of rounds until th...

High-density polyethylene (HDPE) pipes find versatile applicability for transportation of water, sewage and slurry from one place to another. Hence, these pipes undergo tremendous pressure by the fluid carried. The present work entails the optimization of the withstanding pressure of the HDPE pipes using Taguchi technique. The traditional heuristic methodology stresses on a trial and error appr...

Carbon fiber is becoming a key material for engineering applications due to its excellent comprehensive properties. The process parameter optimization an important step in the polymerization of carbon production. At present, most research on usually carried out single production line, without considering correlation between problems. In this paper, multiobjective mechanism model co-optimization...