基于形定位凸轮的多支点单驱动半柔壁喷管设计与验证
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- 英文论文题名：Design and Validation of Multi-Jack Single-Drive Semi-Flexible Nozzle Based on Shape-location Cams
- 论文作者：尉成果 ; 刘伯林 ; 陈振华
- 英文论文作者：YU Chengguo ; Liu Bolin ; CHEN Zhenhua ; China Aerodynamics Research and Development Center
- 年：2016
- 作者机构：中国空气动力研究与发展中心;
- 论文关键词：喷管 ; 多支点单驱动 ; 凸轮 ; 连杆机构
- 英文论文关键词：nozzle ; multi-jack semi-flexible ; cams ; linkage
- 会议召开时间：2016-07-28
- 会议录名称：第二十七届全国振动与噪声应用学术会议论文集
- 语种：中文
- 分类号：V211.74
- 学会代码：ZDZD
- 会议名称：第二十七届全国振动与噪声应用学术会议
- 会议地点：中国黑龙江哈尔滨
- 主办单位：中国振动工程学会振动与噪声控制专业委员会
- 学会名称：中国振动工程学会振动与噪声控制专业委员会
- 页数：6
- 文件大小：658k
- 原文格式：D
- 会议级别：全国
摘要
针对跨超声速风洞中柔壁喷管型面成型速度慢、控制系统复杂、造价昂贵等问题,提出了一种多支点单驱动半柔壁喷管。该半柔壁喷管采用单一驱动原件驱动,通过连杆机构与形定位凸轮传动,精确实现多种马赫数型面。依据气动型面,求解凸轮曲线关键点位置,采用三次样条曲线拟合和等距偏置完成凸轮曲线计算。针对机构传动链进行精度分析,找出了对末端精度影响较大的传动环节,提出了合理的配合公差。通过仿真和样机试验,得出结论:基于形定位凸轮的多支点单驱动半柔壁喷管可以实现6种马赫数型面的成型,支点最大偏差小于0.05mm,从M1.0型面变形到M3.0的最快变形时间为8s。
In order to reduce the cost of wind tunnel construction, simplify the requirement of control, and increase the security in the operation of nozzle, the multi-jack single-drive semi-flexible nozzle is designed. The nozzle contour is controlled precisely by only one single drive and a series of cams and links. According to the aerodynamic contour and the key points of cams, the curves of cams are calculated based on the cubic spline and offset method. After the analysis of linkage precise, the main error source of drive chain is found and the better tolerance is choose. With the simulation and prototype development, the conclusion is that multi-jack single-drive semi-flexible nozzle based on shape-location cams can realize six contours, the error is within 0.05 mm and the duration from M1.0 to M3.0 is 8 second.
In order to reduce the cost of wind tunnel construction, simplify the requirement of control, and increase the security in the operation of nozzle, the multi-jack single-drive semi-flexible nozzle is designed. The nozzle contour is controlled precisely by only one single drive and a series of cams and links. According to the aerodynamic contour and the key points of cams, the curves of cams are calculated based on the cubic spline and offset method. After the analysis of linkage precise, the main error source of drive chain is found and the better tolerance is choose. With the simulation and prototype development, the conclusion is that multi-jack single-drive semi-flexible nozzle based on shape-location cams can realize six contours, the error is within 0.05 mm and the duration from M1.0 to M3.0 is 8 second.
引文
[1]刘政崇.风洞结构设计.中国宇航出版社.中国.2005.
[2]Siegfried F.Erdmann.A New Economic Flexible Nozzle for Supersonic Wind Tunnels.J of Aircraft.1971.
[3]彭强.邓小刚.廖达雄.符澄.半柔壁喷管气动设计关键控制参数研究.空气动力学学报.2011年2月第29卷第1期:39~84.
[4]聂旭涛.郭隆德.刘伯林.基于ADAMS风洞柔壁喷管动力学仿真分析.实验流体力学.2011年4月第25卷第2期:73~76.
[5]范洁川等.世界风洞.航空工业出版社.1992.
[6]于清,洪嘉振.柔性多体系统动力学的若干热点问题.力学进展.1999 29(2):146.
[2]Siegfried F.Erdmann.A New Economic Flexible Nozzle for Supersonic Wind Tunnels.J of Aircraft.1971.
[3]彭强.邓小刚.廖达雄.符澄.半柔壁喷管气动设计关键控制参数研究.空气动力学学报.2011年2月第29卷第1期:39~84.
[4]聂旭涛.郭隆德.刘伯林.基于ADAMS风洞柔壁喷管动力学仿真分析.实验流体力学.2011年4月第25卷第2期:73~76.
[5]范洁川等.世界风洞.航空工业出版社.1992.
[6]于清,洪嘉振.柔性多体系统动力学的若干热点问题.力学进展.1999 29(2):146.