I. WS Atkins Consultants Ltd. Report No.AM3504/R006, Issue 04:
This study included: a review of accident data and public domain literature relating to water impact; the development and validation of finite element modelling (FEM) techniques to predict airframe accelerations and forces during water impact; the modelling of three helicopter water impact scenarios (based on actual accidents) using the proprietary FEM code LS-DYNA3D; a review of helicopter emergency flotation equipment design; a top-level cost-benefit analysis of a number of proposed modifications; a review of the requirements and advisory material relating to water impact, ditching and occupant egress.
II. BMT Fluid Mechanics Ltd. Document No.44134r55 Release 5:
This study comprised an assessment of the range and variability of impact loads experienced by typical emergency flotation systems during water impact, using a Monte Carlo simulation procedure based on simplified empirical and theoretical formulae. The purpose of this study was to complement the finite element analysis performed by WS Atkins Consultants Ltd
- Status:
- Current
- Review comment:
- -
- Version:
- 1
- Version date:
- 27-Jul-2022
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