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为比利时军事潜水员选择最佳的空中潜水梯度因子:更保守的设置不一定是更安全的

Sven De Ridder^1,2,3, Nathalie Pattyn¹, Xavier Neyt¹

¹VIPER Research Unit, Royal Military Academy, Brussels, Belgium.

Diving and hyperbaric medicine

|September 17, 2023

概括

比利时军方潜水员应避免使用Shearwater Perdix潜水计算机上的默认梯度因子 (GF). 最佳设置,如GF_LO 100和减少GF_HI,提高安全的空中潜水,不像默认的30/70GF.

科学领域:

潜水医学是一门潜水医学.
生理学建模生理学建模
计算流体动力学的流体动力学.

背景情况:

比利时军方潜水员使用Shearwater Perdix潜水计算机.
默认梯度因子 (GF) 存在操作限制.
需要优化GF设置,以确保军事潜水安全.

研究的目的:

为Shearwater Perdix潜水计算机提供最佳梯度因子 (GF) 选择的指南.
优化减压时间表,使其与已建立的安全潜水实践保持一致.

主要方法:

在Python中用梯度因子 (GF) 建模了Bühlmann ZH-L16C解压算法.
通过与国防和民用环境医学研究所 (DCIEM) 和美国海军 (USN) 空气减压表进行比较,优化了GF设置.
使用顺序搜索来找到最佳的GF参数.

主要成果:

最佳设置涉及GF_LO在100和GF_HI降低到至少75的情况.
默认的Perdix设置 (GF_LO 30,GF_HI 70) 可能会增加由于更深的初始停止而导致减压疾病 (DCS) 的风险.
目前的软件限制需要对称的GF设置 (例如,75/75到95/95) 作为次优但可实现的解决方案.

结论:

对于不重复的空中潜水,建议使用GF_LO100和降低GF_HI以提高安全性.
没有证据支持默认GF设置 (30/70) 的安全性,用于高达60米的潜水;相反的情况可能是真的.
建议比利时海军潜水员不要使用默认的GF设置,而在软件约束范围内采用对称的GF设置.

关键词:

计算机的潜水方式.压缩减压的方法抑郁症是一种减压性疾病.解压表的压缩表.这是潜水潜水.模型模型模型模拟模拟是为了模拟.

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