超声振动磨削CFRP温度场的有限元仿真

刘军; 范宝朋; 陈燕; 梁宇红

doi:10.13433/j.cnki.1003-8728.20190217

超声振动磨削CFRP温度场的有限元仿真

doi: 10.13433/j.cnki.1003-8728.20190217

刘军^1,,
范宝朋²,
陈燕^2, ,,
梁宇红²

1.
中国商飞上海飞机制造有限公司，上海　201325
2.
南京航空航天大学江苏省精密与微细制造技术重点实验室，南京　210016

基金项目: 国家自然科学基金项目（ 51375234）与校企合作项目（COMAC-SFGS-2018-2921）资助

详细信息

作者简介:
刘军(1984−)，高级工程师，硕士，研究方向为复合材料制造技术，liujun@comac.cc

通讯作者:
陈燕，教授，博士生导师，ninaych@nuaa.edu.cn

中图分类号: TG58
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- 文章访问数: 473
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- 被引次数: 0
出版历程
- 收稿日期: 2019-04-09
- 刊出日期: 2020-06-05

FEM Simulation of Temperature Field in Ultrasonic Vibration Grinding of CFRP

1.
China Shang Fei Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 201325, China
2.
Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 超声振动磨削时的高温易导致碳纤维增强树脂基复合材料(CFRP)的热损伤，为了分析超声振动磨削CFRP过程中的温度问题，借助有限元的方法对声振动磨削CFRP温度场进行了仿真。首先利用半人工热电偶在线测量了磨削温度，通过试验与仿真相结合的方法研究了传入0、45°、90°和135°纤维取向的单向CFRP中的热分配比。随后，根据超声振动磨削各单向CFRP的热分配比，建立了超声振动磨削多向CFRP磨削温度场仿真模型。最后，通过超声振动磨削试验对有限元模型的有效性进行了验证。
- 超声振动磨削 /
- 碳纤维增强树脂基复合材料 /
- 温度场 /
- 热分配比 /
- 有限元仿真
Abstract: The high temperature in the ultrasonic vibration grinding is likely to cause thermal damage of carbon fiber reinforced plastic (CFRP). In order to resolve the temperature problem in the ultrasonic vibration assisted grinding of CFRP, the temperature field is studied by using finite element method. Firstly, the ultrasonic vibration assisted grinding temperature is measured online by semi-manual thermocouple. The heat distribution ratio in the unidirectional CFRP with a fiber orientation of 0, 45°, 90° and 135° is studied by combing the experiment and simulation. Then, according to the heat distribution ratio of each unidirectional CFRP, a simulation model for temperature field in the ultrasonic vibration assisted grinding of multi-directional CFRP is established. Finally, the finite element model is verified by using ultrasonic vibration assisted grinding experiments performed on multi-directional CFRP.
- ultrasonic vibration grinding /
- carbon fiber reinforced plastic /
- temperature field /
- heat distribution ratio /
- finite element method simulation

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图 1 试验装置及刀具

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图 2 CFRP纤维方向角

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图 3 工件建模与网格划分

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图 4 多向CFRP层合板建模与网格划分

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图 5 多向CFRP层合板施加热源及对流换热模型

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图 6 各纤维取向的单向CFRP层合板温度场分布情况

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图 7 多向CFRP层合板节点温度随时间变化趋势图

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图 8 刀具磨削工件阶段温度场分布

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表 1 超声振动磨削各纤维取向单向CFRP层合板磨削力及温度数据

序号	转速 n/(r·min⁻¹)	进给速度v_w/(mm·min⁻¹)	磨削深度a_p/mm	0		45°		90°		135°
序号	转速 n/(r·min⁻¹)	进给速度v_w/(mm·min⁻¹)	磨削深度a_p/mm	F_X/N	T/℃	F_X/N	T/℃	F_X/N	T/℃	F_X/N	T/℃
1	8 000	100	0.1	4.767	47.18	7.283	70.54	8.258	72.78	7.960	73.58
2	8 000	200	0.5	20.878	92.38	30.932	104.57	30.075	112.94	25.029	100.86
3	8 000	300	1.0	30.863	150.97	51.737	159.80	47.805	167.93	39.458	154.80
4	8 000	400	1.5	35.751	177.69	60.418	194.67	55.457	198.96	44.756	199.39
5	12 000	100	0.5	15.512	122.94	20.571	126.79	18.534	127.90	16.981	128.80
6	12 000	200	0.1	4.080	51.51	7.299	83.48	6.957	85.16	6.942	88.70
7	12 000	300	1.5	34.229	198.53	41.299	212.21	40.404	220.44	34.490	207.90
8	12 000	400	1.0	32.757	168.50	41.063	177.85	38.348	195.12	31.651	183.67
9	16 000	100	1.0	17.568	196.88	25.034	202.21	26.105	220.79	25.552	218.96
10	16 000	200	1.5	25.194	211.32	35.483	228.35	37.730	247.29	33.996	248.96
11	16 000	300	0.1	4.230	63.22	7.290	103.36	6.498	110.49	6.310	115.15
12	16 000	400	0.5	17.171	143.68	27.086	165.28	25.492	185.80	22.769	156.17
13	20 000	100	1.5	16.977	211.57	24.044	243.18	25.015	253.29	22.215	248.36
14	20 000	200	1.0	17.357	214.64	26.618	233.58	26.433	245.22	20.106	235.20
15	20 000	300	0.5	13.318	165.05	18.344	182.23	20.520	197.02	16.999	191.61
16	20 000	400	0.1	3.729	57.57	4.988	91.96	4.908	95.37	4.643	92.05

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表 2 工件材料及金刚石磨粒热特性参数

类型	导热系数k/(W·(m·K)⁻¹)	密度 ρ/(kg·m⁻³)	比热容c/(J·(kg·K)⁻¹)
纤维	轴向9.60，径向0.96	1 800	753.62
树脂	0.20	1 250	1 884.00
金刚石	2 000.00	3 500	500.00

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表 3 超声振动磨削0、45°、90°与135°纤维取向单向CFRP层合板热分配比

序号	主轴转速 n/(r·min⁻¹)	进给速度 v_w/(mm·min⁻¹)	磨削深度 a_{p^_/}/mm	0方向 R₀/%	45°方向 R₄₅/%	90°方向 R₉₀/%	135°方向 R₁₃₅/%
1	8 000	100	0.1	0.891	1.975	2.526	1.895
2	8 000	200	0.5	0.723	1.442	3.440	1.572
3	8 000	300	1.0	1.435	2.091	3.247	2.715
4	8 000	400	1.5	1.829	2.885	4.350	3.997
5	12 000	100	0.5	0.953	1.368	2.003	1.689
6	12 000	200	0.1	0.975	2.188	3.004	2.401
7	12 000	300	1.5	1.288	2.692	3.888	3.144
8	12 000	400	1.0	1.146	2.293	3.694	3.088
9	16 000	100	1.0	1.204	1.703	2.382	1.825
10	16 000	200	1.5	1.210	2.095	2.901	2.402
11	16 000	300	0.1	1.136	2.603	4.158	3.358
12	16 000	400	0.5	1.185	2.011	3.310	2.237
13	20 000	100	1.5	1.151	1.919	2.570	2.123
14	20 000	200	1.0	1.328	2.070	2.958	2.761
15	20 000	300	0.5	1.311	2.319	3.075	2.651
16	20 000	400	0.1	0.936	2.600	4.162	3.177

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