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| 关于摆锤式冲击弯曲试验冲击载荷精确测定的研究 | |
| 引用本文： | 侯培红. 关于摆锤式冲击弯曲试验冲击载荷精确测定的研究[J]. 现代制造工程, 2011, 0(4) |
| 作者姓名： | 侯培红 |
| 作者单位： | 上海电机学院机械学院,上海,200245 |
| 基金项目： | 国家"十一五"科技支撑计划项目，上海市教育委员会重点学科建设项目 |
| 摘 要： | 提出一种考虑到应力波传播现象的比较精确测定冲击力的方法.即通过改装摆锤式冲击试验机,实现冲击载荷-时间曲线测定,然后利用叠加积分求解的原理,在通过校正实验获得传递函数之后,再运用傅里叶变换和逆变换,求得精确度比较高的冲击力.同时通过实例验证了这一方法在高、低硬度材料动载荷测定中的有效性. |
| 关 键 词： | 冲击载荷 精确测定 摆锤式冲击弯曲试验 校正实验 传递函数 |
Research on accurate measurement of impact load in pendulum-type impact bending test |
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| HOU Pei-hong. Research on accurate measurement of impact load in pendulum-type impact bending test[J]. Modern Manufacturing Engineering, 2011, 0(4) | |
| Authors: | HOU Pei-hong |
| Affiliation: | HOU Pei-hong(School of Mechanical,Shanghai Dianji University,Shanghai 200245,China) |
| Abstract: | A method of accurate measuring impact force based on stress wave propagation phenomena is proposed here.The measurement of load-time curve is gained by modifying the pendulum-type impact test machine.Then a relatively high accuracy impact force is obtained according to the principle of progressive integral solution,with the transfer function gained from calibration test and application of Fourier transform and inverse transform.At the same time the usefulness of this method in measuring dynamic load of both... |
| Keywords: | impact load accurate measurement instrumented charpy impact test calibration test transmit the function |
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