|
|
Particle self-excited impact-vibration coupled mechanical test method and test study |
LI Feiyin, MA Shaojie, ZHANG He |
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China |
|
|
Abstract Aiming at the technical requirements of shock-vibration coupling mechanical experiment, a new shock-vibration coupling mechanical experimental method of short interval and continuous shock and particle self-excited vibration is proposed, and a prototype of experimental system is designed. Based on the secondary development of EDEM software and VC++, the discrete element coupling simulation model of the experimental system is established, and the general law of particle self-excited vibration response is analyzed, on this basis, the self-excited vibration loading scheme is optimized according to the application requirement. The experimental research is carried out based on the developed mechanical experimental system and the self-excited vibration scheme, by comparing and analyzing the time domain and frequency domain signal of the acceleration response of the continuous shock loading and the shock-vibration coupling loading, the practical application effect of the selected particle self-excited vibration loading scheme is verified. The experimental system can meet the requirements of severe high dynamic and continuous shock mechanical experiments and continuous shock-multi vibration coupling mechanical experiments, the research has good scientific significance and engineering application value.
|
Received: 22 February 2021
Published: 15 February 2023
|
|
|
|
[1] 邹学利, 李宏民, 王海燕. 多轴振动与冲击复合环境试验技术研究[J]. 振动与冲击, 2019, 38(3): 237-243.
ZOU Xue-li, LI Hong-min, WANG Hai-yan. Composite environmental test technique of multi-axial vibration and shock[J]. Journal of vibration and shock, 2019, 38(3): 237-243.
[2] 王杰,李蓉,黄惠东. 基于小波系数的粘连信号穿层特征提取方法[J]. 探测与控制学报, 2016, 38(1): 13-17.
WANG Jie, LI Rong, HUANG Hui-dong. Layer Penetrating Adhesion Signal Characteristic Extractting Based on Wavelet Coefficients[J]. Journal of Detection & Control, 2016, 38(1): 13-17.
[3] 王燕, 马铁华, 徐鹏, 等. 基于Choi-Williams分布的侵彻层数识别方法[J]. 爆炸与冲击, 2015, 35(5): 758-762.
WANG Yan, MA Tie-hua, XU Peng, et al. Identification of penetration layers based on Choi-Williams distribution[J]. Explosion and shock waves.
[4] 周桐, 张志旭, 任万发, 等. 典型结构振动-加速度综合环境试验研究[J]. 装备环境工程, 2015, 12(5): 50-55.
ZHOU Tong,ZHANG Zhi-xu,REN Wan-fa,et al. Experimental Research on Typical Structure under Vibration-Acceleration Combined Environment[J]. Equipment Environmental Engineering, 2015, 12(5): 50-55.
[5] 吴建国, 李海波, 张琪, 等. 液浮陀螺仪过载振动复合环境试验[J]. 中国惯性技术学报, 2015, 23(6): 840-844.
WU Jian-guo, LI Hai-bo, ZHANG Qi, et al. Environment effect and adaptability test on spaceflight fluid floating gyro under overload+vibration[J]. Journal of Chinese Inertial Technology, 2015, 23(6): 840-844.
[6] 吴建国, 李海波, 张琪, 等. 综合离心环境试验技术研究进展[J]. 强度与环境, 2014, 41(1): 1-9.
WU Jian-guo, LI Hai-bo, ZHANG Qi, et al. Advances in synthesis centrifugal environment test[J]. Structure & Environment Engineering, 2014, 41(1): 1-9.
[7] Wong C X, Daniel M C, Rongong J A. Energy dissipation prediction of particle dampers[J]. Journal of Sound and Vibration, 2009, 319(1): 91-118.
[8] Gu X Q, Yang J. A discrete element analysis of elastic properties of granular materials[J]. Granular Matter, 2013, 15, 139-147.
[9] Zhang W H, ZHOU Q, XING L H, Muhlhaus H. A DEM study on the effective thermal conductivity of granular assemblies[J]. Powder Technology, 2011, 205(1): 172-183.
[10] 姚冰. 颗粒阻尼建模仿真及工程应用[D]. 南京: 南京航空航天大学, 2013.
Yao Bing. Modeling and Simulation of Particle Damping and Its Engineering Applications[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2013.
[11] 宋晓宇, 尹忠俊, 陈兵. 颗粒冲击形式对阻尼器能量损耗影响的研究[J]. 振动与冲击, 2019, 38(24): 138-143.
SONG Xiao-yu, YIN Zhong-jun, CHEN Bing. A study on the effects of particle impact forms on energy dissipation of dampers[J]. Journal of vibration and shock, 2019, 38(24): 138-143.
[12] 肖望强, 卢大军, 宋黎明, 等. 基于颗粒阻尼的矿用自卸车振动舒适性[J]. 交通运输工程学报, 2019, 19(6): 111-123.
XIAO Wang-qiang, LU Da-jun, SONG Li-ming, et al. Vibration comfort of mining dump truck based on particle damping[J]. Journal of Traffic and Transportation Engineering, 2019, 19(6): 111-123.
|
|
|
|