一维和三维联合动力学仿真方法在活塞发动机曲柄连杆机构动力学分析中的应用
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摘要
高精度的三维仿真可以满足复杂的动力学分析要求,覆盖全循环的一维动力学计算,可减少三维计算量,节约计算成本。以二冲程航空重油发动机的曲柄连杆机构为例,探讨一维和三维联合动力学仿真方法的可行性和适用性,以期在提高计算效率的同时保证计算精度。一维分析基于GT-POWER的发动机热力循环与动力学模型;三维动力学分析为基于ABAQUS的考虑几何与状态非线性的运动弹性动力学理论的有限元方法。分析表明两种分析方法相符性好,精确度高,并与理论模型的解析解对比,误差保持在3%以内。一维和三维联合动力学仿真方法为二冲程重油航空发动机的设计及结构优化提供理论依据。
High-precision three-dimensional simulation can meet complex dynamic analysis requirements, one-dimensional dynamics calculation covering full cycle can reduce three-dimensional calculation and save computational cost. This paper takes the crank-connecting rod of two-stroke aviation heavy oil engine as an example, exploring the feasibility and applicability of one-dimensional and three-dimensional dynamics co-simulation methods, in order to improve calculation efficiency while ensuring calculation accuracy. One dimensional analysis based on the one dimensional co-simulation of GT-POWER engine thermal cycle and dynamics model; Three dimensional analysis based on ABAQUS finite element method for kineto-elastic dynamics theory considering geometry and state nonlinearity. The results show that the two analytical methods are consistent and accurate, and compared with the analytical solution of the theoretical model, the error is kept within 3%. The one-dimensional and three-dimensional dynamics co-simulation methods provide theoretical basis for the design and structural optimization of two-stroke heavy oil aeroengines.
High-precision three-dimensional simulation can meet complex dynamic analysis requirements, one-dimensional dynamics calculation covering full cycle can reduce three-dimensional calculation and save computational cost. This paper takes the crank-connecting rod of two-stroke aviation heavy oil engine as an example, exploring the feasibility and applicability of one-dimensional and three-dimensional dynamics co-simulation methods, in order to improve calculation efficiency while ensuring calculation accuracy. One dimensional analysis based on the one dimensional co-simulation of GT-POWER engine thermal cycle and dynamics model; Three dimensional analysis based on ABAQUS finite element method for kineto-elastic dynamics theory considering geometry and state nonlinearity. The results show that the two analytical methods are consistent and accurate, and compared with the analytical solution of the theoretical model, the error is kept within 3%. The one-dimensional and three-dimensional dynamics co-simulation methods provide theoretical basis for the design and structural optimization of two-stroke heavy oil aeroengines.
引文
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13罗泽明,郑丽.航空发动机可靠性研究[J].飞机设计,2017,38(5):67-70
14杨树彬,赵俊生,刘继林,等.发动机配气机构凸轮-从动件接触应力分析[J].科学技术与工程,2018,18(17):163-167
15杨连生.内燃机设计[M].北京:中国农业机械出版社,1981
16张文灿.基于GT-SUITE的发动机配气机构动力学分析[J].轻工科技,2016,7(5):40-51
17吴雪峰.基于MATLAB的插床机构运动学和动力学规律分析[J].煤矿机械,2018,39(5):160-162
18樊小欢.基于有限元与多体动力学的曲轴系分析[D].大连:大连理工大学,2016
19吴楠.柴油机曲柄连杆机构多体动力学分析[J].内燃机工程,2005,26(5):69-73
20 G Gopal,Dr L Suresh Kumar.Analysis of piston,connecting rod and crank shaft assembly[J].ScienceDirect,2017,4:7810-7819
21 Samin Akbari,Fatemeh Fallahi.Dynamic analysis and controller design for a slider-crank mechanism with piezoelectric actuators[J].Journal of Computational Design and Engineering,2017,4:312-321
22张策.弹性连杆机构的分析与设计[M].北京:机械工业出版社,1997
23魏立队.大型船舶低速柴油机柔性曲轴三维振动[J].内燃机学报,2017,35(2):185-191
2张奇,杜发荣.小功率航空活塞发动机重油技术进展[J].小型内燃机与车辆技术,2014,43(4):81-85
3尹泽勇,李上福.无人机动力装置的现状与发展[J].航空发动机,2007,33(1):10-15
4祁圣君,井立.无人机系统及发展趋势综述[J].飞航导弹,2018(4):17-21
5 Blair G.P.Design and simulation of two-stroke engine[M].Warrendale,PA:Society of Automotive Engineers,Inc,1996,513
6杨致明,李隆强.舰载无人机的活塞式发动机的燃油问题与对策[C]//中国航空学院.突兵之翼---2006中国无人机大会.北京:航空工业出版社,2006
7马帅,刘娜.二冲程重油发动机技术现状及发展方向[J].小型内燃机与车辆技术,2015,44(2):87-91
8冯光烁,周明.重油航空活塞发动机技术路线分析[J].清华大学学报,2016,56(10):1 114-1 121
9郭凌崧,王昊.航空重油在航空活塞式发动机的应用[J].小型内燃机与车辆技术,2018,47(1):84-93
10李卫东.航空活塞式动力装置[M].成都:西南交大出版社,2016
11李超博,楼京俊,吴海平,等.星型空压机曲柄连杆机构动力学特性分析[J].中国舰船研究,2018(5):97-102
12张宏亮.8V60°柴油发动机的平衡分析与平衡方案设计[J].内燃机与配件,2015(9):4-6
13罗泽明,郑丽.航空发动机可靠性研究[J].飞机设计,2017,38(5):67-70
14杨树彬,赵俊生,刘继林,等.发动机配气机构凸轮-从动件接触应力分析[J].科学技术与工程,2018,18(17):163-167
15杨连生.内燃机设计[M].北京:中国农业机械出版社,1981
16张文灿.基于GT-SUITE的发动机配气机构动力学分析[J].轻工科技,2016,7(5):40-51
17吴雪峰.基于MATLAB的插床机构运动学和动力学规律分析[J].煤矿机械,2018,39(5):160-162
18樊小欢.基于有限元与多体动力学的曲轴系分析[D].大连:大连理工大学,2016
19吴楠.柴油机曲柄连杆机构多体动力学分析[J].内燃机工程,2005,26(5):69-73
20 G Gopal,Dr L Suresh Kumar.Analysis of piston,connecting rod and crank shaft assembly[J].ScienceDirect,2017,4:7810-7819
21 Samin Akbari,Fatemeh Fallahi.Dynamic analysis and controller design for a slider-crank mechanism with piezoelectric actuators[J].Journal of Computational Design and Engineering,2017,4:312-321
22张策.弹性连杆机构的分析与设计[M].北京:机械工业出版社,1997
23魏立队.大型船舶低速柴油机柔性曲轴三维振动[J].内燃机学报,2017,35(2):185-191