|Table of Contents|

Dynamic simulation of doublefrequency and doubleamplitude composed vibrating compaction(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年01期
Page:
99-102
Research Field:
Publishing date:
2009-01-20

Info

Title:
Dynamic simulation of doublefrequency and doubleamplitude composed vibrating compaction
Author(s):
ZHONG Chunbin1; 2;  FENG Zhongxu1;  ZHU Weimin3;  YAO Yunshi1
1. Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education, Changan University, Xian 710064, Shaanxi, China； 2. Guangxi Liugong Machinery Limited Corporation, Liuzhou 545007, Guangxi, China; 3. Hangzhou Applied Acoustics Research Institute, Hangzhou 310012, Zhejiang, China
Keywords:
road machinery;  road levelling machine;  doublefrequency and doubleamplitude vibrating compaction;  mathematical model;  parameters identification;  dynamic simulation
PACS:
U415.521
DOI:
-
Abstract:
An experimental prototype was designed based on the doublefrequency and doubleamplitude composed vibrating compaction method in order to analyze the effects on compaction performances. On the basis of the early stage experiments, a dynamic model of the compactorsoil was built and the changing rules of soil stiffness and damping with respect to compaction times were also obtained by the solution of their values. With the help of dynamic simulation, the changing rules of some parameters, such as the upper and lower chassis displacements, acceleration, effect forces on the ground caused by compaction roller, were given out. The relatively rational coupling relations among the key compactor working parameters and their varying ranges were gained, the lower frequency is from 20 Hz to 30 Hz, the amplitude is from 0.8 mm to 1.5 mm, the frequency ratio is from 1 to 3, the amplitude ratio is from 1/3 to 1/2, the initial phase of vibration exciter is from 0° to 90°. 2 tabs, 10 figs, 10 refs.

References:

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Last Update: 2009-01-20