唐杰,肖生苓,王全亮,李琛.吊灯灯罩缓冲衬垫的随机振动仿真分析及实验验证[J].包装工程,2018,39(15):6-14.
TANG Jie,XIAO Sheng-ling,WANG Quan-liang,LI Chen.Simulation Analysis on Random Vibration and Experimental Verification of Chandelier Lampshade Buffering Cushion[J].Packaging Engineering,2018,39(15):6-14. |
| 吊灯灯罩缓冲衬垫的随机振动仿真分析及实验验证 |
| Simulation Analysis on Random Vibration and Experimental Verification of Chandelier Lampshade Buffering Cushion |
| 投稿时间：2017-11-01 修订日期：2018-08-10 |
| DOI：10.19554/j.cnki.1001-3563.2018.15.002 |
| 中文关键词: Ansys 随机振动 缓冲衬垫 功率谱密度 |
| 英文关键词: Ansys random vibration buffering cushion power spectral density |
| 基金项目:哈尔滨市应用技术研究与开发项目（优秀学科带头人 A 类）（2016RAXXJ004） |
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| 中文摘要: |
| 目的 研究吊灯灯罩纤维模塑缓冲衬垫在随机振动激励下结构设计的合理性，及其对产品的保护性能。方法 利用 Ansys 软件对吊灯灯罩纤维模塑缓冲衬垫包装件进行模态分析，获取包装件的固有频率和振型，将路面随机振动激励谱作用于纤维模塑缓冲衬垫包装件进行仿真分析，得到包装件的应力、应变云图和加速度功率谱密度响应曲线等，以此分析其结构设计的合理性以及对产品的保护性能，并进行实验验证。结果 灯罩所受应力值远小于灯罩材料所能承受的最大屈服应力值（75 MPa），吊灯灯罩保存完好；有限元分析得到的结果与实测结果一致。结论 纤维模塑缓冲垫结构设计合理，强度可满足保护产品的要求；利用有限元仿真分析解决纤维模塑缓冲包装制品的随机振动问题是可靠的，适用于动态环境下同类缓冲制品性能的研究，为缓冲包装产品性能预测、结构设计及优化提供有效分析手段。 |
| 英文摘要: |
| The work aims to explore the rationality of structural design for chandelier lampshade molded fiber buffering cushion and its product protection under random vibrational excitation. Modal analysis of chandelier lampshade molded fiber buffering cushion package was carried out by Ansys software to obtain natural frequency and modal shapes of packages. The random vibrational road excitation spectrum was applied to package of molded fiber buffering cushion for the simulation analysis to obtain the stress, strain nephogram, acceleration power spectral density response curves and other related parameters of the package, which could be used to analyze the rationality of structural designs for buffering cushion and its protective performance for products. The results of simulation analysis were verified by experiments. The stress value of the lampshade was much less than the maximum yield stress value (75 MPa) withstood by the lampshade material, so that the chandelier lampshade was well preserved. The results obtained by the finite element analysis were consistent with the measured results. The structural design of molded fiber buffering cushion is reasonable and its strength can meet the requirements of product protection. The finite element simulation analysis is reliable to solve the random vibration problem of molded fiber cushioning packaging products, which applies to the study on the performance of similar cushioning products in dynamic environment. It provides an effective method of analysis for the performance prediction, structural design and optimization of cushioning packaging products. |
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