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关于爆炸振动速度和加速之间的等效转换的研究
Chong Yu1,2, Jiajun Wu1,2, Haibo Li1,2
1State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China.
Sensors (Basel, Switzerland)
|March 28, 2024
概括
这项研究引入了一种新方法,可以准确地转换爆炸振动数据,特别是粒子峰值速度 (PPV) 和粒子峰值加速 (PPA). 该研究提出了比率 (Ra) 的方程,并确定了影响振动转换的因素,以优化喷气设计.
科学领域:
- 地质技术工程 地质技术工程
- 采矿工程 采矿工程 采矿工程
- 振动分析 振动分析
背景情况:
- 精确评估爆炸振动对于安全和效率至关重要.
- 在粒子峰值速度 (PPV) 和粒子峰值加速 (PPA) 之间进行转换是具有挑战性的,因为数据不一致和噪声.
- 现有的转换方法往往缺乏准确性.
研究的目的:
- 开发一种可靠的方法来转换爆炸振动数据 (PPV和PPA).
- 提出PPV与PPA的比率 (Ra) 的准确方程.
- 调查影响振动转换的因素,并优化喷气设计.
主要方法:
- 使用 MATLAB 函数消除趋势术语.
- 通过CEEMDAN与WD/WDP相结合,降低噪音.
- 开发和验证PPV/PPA比率 (Ra) 的转换方程.
主要成果:
- 拟议的方法通过有效地消除趋势条款和噪音,显著提高了PPV-PPA转换的准确性.
- 在Ra和爆炸振动传播距离之间发现了正功率函数相关性.
- 在Ra和每次延迟的最大电荷之间观察到负相关性;Ra值在分裂前低于板式喷射.
结论:
- 开发的转换方法和Ra方程为评估PPV-PPA关系提供了快速和直接的方法.
- 这些发现为优化喷气设计和改进振动分析提供了宝贵的见解.
- 精确的振动数据转换对于有效的地质技术和采矿操作至关重要.
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