【作者】 张大中； 张高勤； 胡亚风；

【Author】 Zhang Dazhong;Zhang Gaoqin;Hu Yafeng;

【机构】 南京林业大学；

【摘要】 本文介绍了一种自制的新型沥青混凝土小梁动力性能测试装置。本装置采用了非接触激励和响应,较好地克服了沥青混凝土小梁局部变形加大的问题,为提高沥青混凝土小梁动力性能试验的精确度提供了一种新的测试手段。该装置能在-15～45℃、0.01～10Hz范围内进行精确的动力测试,具有良好的环境适应性。实际运用测试的数据表明该测试装置试验精确度等方面具有较明显的优势。更多还原

【Abstract】 A new testing device for dynamic performance of small asphalt concrete beam is reported.A non contacting method is adopted both in incentive signal and measuring response.The problem of deformation in testing small beam of asphalt concrete is overcome.It provides a new testing way to get better measurement accuracy for dynamic performance of small asphalt concrete beam.Its environmental suitability is so perfect that can run in ambient temperature of-15～45℃and measuring range of 0.01～10 Hz.According to the data of actual measurement,the obvious advantage is verified.更多还原