本文選題：ANSYS + workbench��； 參考：《華北理工大學(xué)》2016年碩士論文

【摘要】：進(jìn)入新世紀(jì)后,隨著經(jīng)濟(jì)的高速發(fā)展,緩沖包裝在各個(gè)行業(yè)的重視程度越來(lái)越大,特別是對(duì)一些附加值高,易損壞的貴重商品來(lái)說(shuō)意義更大。選擇某品牌智能座便器的整體緩沖包裝為對(duì)象,利用Creo2.0、ANSYS workbench等軟件對(duì)緩沖襯墊的緩沖性能進(jìn)行分析,并對(duì)其隨機(jī)振動(dòng)進(jìn)行研究。主要研究?jī)?nèi)容如下:1)對(duì)緩沖包裝動(dòng)力學(xué)理論進(jìn)行了梳理研究,簡(jiǎn)化某品牌智能座便器為二自由度三次非線性系統(tǒng)。剝離易損件和主體為一振動(dòng)系統(tǒng),主體與緩沖枕墊為一振動(dòng)系統(tǒng),兩個(gè)單自由系統(tǒng)構(gòu)成了二自由度振動(dòng)系統(tǒng)。同時(shí)對(duì)緩沖系數(shù)等進(jìn)行了梳理,結(jié)果表明緩沖性能的優(yōu)劣是多方面影響的。2)為了得到ANSYS workbench有限元仿真的材料屬性,對(duì)緩沖材料進(jìn)行了靜態(tài)壓縮試驗(yàn),得到負(fù)載-位移曲線,通過相應(yīng)公式計(jì)算得應(yīng)力-應(yīng)變曲線和緩沖系數(shù)曲線,得到彈性模量和塑性階段相關(guān)數(shù)據(jù);通過瓦楞原紙經(jīng)驗(yàn)公式、多步均勻法和瓦楞紙板抗彎剛度相等,求得七層瓦楞紙板的各向等效模量、泊松比和等效厚度,用于非線性結(jié)構(gòu)分析。3)利用Creo2.0建立三維模型,導(dǎo)入ANSYS workbench中進(jìn)行非線性結(jié)構(gòu)分析。利用堆碼公式計(jì)算底層包裝件的受力情況,然后經(jīng)過仿真模擬,發(fā)現(xiàn)原始設(shè)定的4層堆碼會(huì)使底層包裝件受損嚴(yán)重,馬桶圈發(fā)生不可逆的塑性變形,所以3層堆碼更合理。4)利用瓦楞紙板和高密度EPE對(duì)原緩沖襯墊進(jìn)行改進(jìn),在不改變緩沖襯墊結(jié)構(gòu)或使用相似結(jié)構(gòu)的情況下,提出3種緩沖襯墊組合方案。對(duì)3種方案前置模態(tài)分析,再進(jìn)行隨機(jī)振動(dòng)動(dòng)態(tài)分析,對(duì)緩沖性能綜合比較。結(jié)果發(fā)現(xiàn),第3方案全瓦楞紙板緩沖包裝綠色環(huán)保、造價(jià)低廉能夠提供足夠的緩沖保護(hù),為最優(yōu)方案。
[Abstract]:After entering the new century, with the rapid development of economy, buffer packaging has been paid more and more attention in various industries, especially for some valuable commodities with high added value and easily damaged. The cushioning performance of cushioning pad was analyzed by using Creo 2.0 workbench software and its random vibration was studied. The main research contents are as follows: (1) the theory of buffer packaging dynamics is combed and studied, which simplifies a brand of smart seat toilet as a two-degree-of-freedom cubic nonlinear system. The subject and cushion are a vibration system, and two single free systems constitute a two-degree-of-freedom vibration system. At the same time, the buffer coefficient is combed, and the results show that the buffering performance is affected by many aspects. 2) in order to obtain the material properties of ANSYS workbench finite element simulation, static compression test of buffer material is carried out, and the load-displacement curve is obtained. The relative data of elastic modulus and plastic stage are obtained by calculating the stress-strain curve and buffer coefficient curve by the corresponding formula, and the bending stiffness of corrugated board is equal to that of corrugated paper by multi-step uniform method through the empirical formula of corrugated medium. The equivalent modulus, Poisson's ratio and equivalent thickness of the seven-layer corrugated board are obtained for nonlinear structural analysis. 3) Three-dimensional model is established by using Creo2.0 and introduced into ANSYS workbench for nonlinear structural analysis. The stress of the bottom packaging is calculated by the formula of stacking code, and the simulation results show that the original four layers of stacking code will cause serious damage to the bottom packaging, and the toilet seat will be irreversibly plastic deformed. So it is more reasonable. 4) corrugated board and high density EPE are used to improve the original cushioning pad. Without changing the cushion structure or using similar structure, three kinds of cushioning cushion combination schemes are put forward. The premodal analysis of three schemes and the dynamic analysis of random vibration are carried out, and the buffering performance is compared synthetically. The results show that the third scheme is green and environmentally friendly, and the low cost can provide sufficient buffer protection, which is the best scheme.
【學(xué)位授予單位】：華北理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TB489

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 肖雯娟;郝陽(yáng);;常用密度EPE的靜態(tài)壓縮緩沖特性試驗(yàn)研究[J];中國(guó)包裝工業(yè);2015年08期

2 任艷玲;盧立新;;4層瓦楞紙板復(fù)合瓦楞紙彈性模量的計(jì)算[J];包裝工程;2012年05期

3 周廷美;陳菲菲;;瓦楞夾層結(jié)構(gòu)等效彈性常數(shù)的多步均勻化方法[J];武漢理工大學(xué)學(xué)報(bào);2009年17期

4 楊冰;盧立新;;基礎(chǔ)位移激勵(lì)下包裝系統(tǒng)的非線性振動(dòng)分析[J];包裝工程;2008年02期

5 陳滿儒;張波濤;;基于ANSYS的產(chǎn)品緩沖包裝的分析與設(shè)計(jì)[J];包裝工程;2006年06期

6 姜久紅;王志偉;;二自由度線性系統(tǒng)跌落響應(yīng)影響因素分析[J];包裝工程;2006年05期

7 盧立新;;跌落損傷脆值及損傷邊界[J];包裝工程;2005年06期

8 王志偉;現(xiàn)代包裝力學(xué)[J];包裝工程;2002年01期

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本文編號(hào)：1965905