加筋板靜力分析ppt課件(參考版)
2025-05-09 12:07本頁面
【正文】 WS51 NAS101, Workshop 5, February 2022 WORKSHOP 5 Stiffened Plate Subjected to Pressure Load WS52 NAS101, Workshop 5, February 2022 Workshop 5 ? Stiffened Plate Model ? GOAL: model a stiffened panel using plate elements for the panel and BEAM elements for the stiffener WS53 NAS101, Workshop 5, February 2022 Workshop 5 (cont.) ? Stiffened Plate Model ? We will model a plate which is inches thick, inches long, and inches wide. The stiffener is shown below, along with the plate dimensions and loading ? The model has pinned supports at the corners WS54 NAS101, Workshop 5, February 2022 Workshop 5 (cont.) ? Stiffened Plate Model ? Material properties: ? E = +6 psi ? Poissons Ratio = .3 ? Density = .101 lb/in3 (weight density) ? The stiffener will be modeled using a BEAM with a PBEAML to define the crosssection ? The GRID points will lie at the midplane of the plate, so the BEAM must be offset from the GRID points by (half the BEAM height pus half the plate thickness) WS55 NAS101, Workshop 5, February 2022 Workshop 5 (cont.) ? Stiffened Plate Model WS56 NAS101, Workshop 5, February 2022 Workshop 5 (cont.) ? Stiffened Plate Model ? PBEAML Entry PBEAML,2,1,I ,2.,1.,1.,.1,.1,.1 ? Sample CBEAM CBEAM 21 2 31 32 0. 0. 1. 0. 0. 0. 0. WS57 NAS101, Workshop 5, February 2022 Workshop 5 (cont.) ? Stiffened Plate Model Pressure Load Definition ? Pressure loads on plate and shell elements are defined using PLOAD2 or PLOAD4 entries ? SID = Static Loading Set ID ? EIDi = Element ID ? P = Pressure (applied in element coordinate system) PLOAD2,1,1,THRU,20 WS58 NAS101, Workshop 5, February 2022 Workshop 5 (cont.)
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