平面涡卷弹簧性能分析与优化设计

发布时间：2018-01-01 09:01

本文关键词：平面涡卷弹簧性能分析与优化设计　出处：《大连海事大学》2017年硕士论文　论文类型：学位论文

【摘要】：平面涡卷弹簧作为储能驱动元件广泛应用于各种机械装置中,其输出扭矩、冲击等性能对装置性能、可靠性和安全性具有重要影响。本文基于Box-Behnken试验测试方案,利用方差分析和响应面法研究平面涡卷弹簧设计参数对其输出性能的影响规律,建立其输出性能回归模型;以分离装置使用的平面涡卷弹簧为例,基于试验测试结果,建立平面涡卷弹簧优化设计模型;通过分离装置性能测试试验,验证了平面涡卷弹簧优化设计模型的有效性。本文主要研究内容包括:(1)建立平面涡卷弹簧性能测试系统,基于Box-Behnken试验设计方案,利用方差分析、误差分析和响应面法,分析平面涡卷弹簧设计参数(厚度、宽度和长度)对卷簧扭矩、释放冲击和释放时间等性能的影响规律。试验结果表明:平面涡卷弹簧厚度、宽度和长度均对扭矩、释放冲击和释放时间具有显著影响;厚度是影响三个性能参数的最显著因素,长度与厚度和宽度的交叉项对三个性能参数影响不显著;建立了平面涡卷弹簧扭矩、释放冲击和释放时间与设计参数之间的回归模型,并通过误差分析、多元相关系数、可信度等分析,验证了模型的有效性和可信性,为平面涡卷弹簧性能优化设计提供理论支持。(2)以分离装置中平面涡卷弹簧设计为应用背景,基于平面涡卷弹簧试验测试分析结果,以平面涡卷弹簧厚度、宽度和长度为优化变量,最小释放冲击和最小释放时间为优化目标,考虑输出转矩、连接强度、锁紧力、复位载荷等性能约束,建立平面涡卷弹簧多目标优化设计模型,采用多目标进化算法求解获得最优设计方案。设计案例分析表明,与传统设计方案相比,优化设计方案释放冲击和释放时间分别降低24.7%和4.8%。(3)将平面涡卷弹簧优化方案应用于分离装置,进行承载力、释放冲击、释放时间和高低温环境试验测试分析。优化设计和传统设计方案试验结果对比分析表明:不加载时平面涡卷弹簧释放冲击测试值与理论值误差为2.8%,加载到5000 N时优化方案释放冲击最大值和最小值分别下降49.5%和5.3%;不加载时平面涡卷弹簧释放时间测试值与理论值误差为2.8%,加载时优化方案释放时间最大值和最小值分别下降4.4%和2.8%;分离装置在-45℃—80℃范围内均可以成功解锁。
[Abstract]:Plane scroll spring as an energy storage driving element is widely used in various mechanical devices, the output torque of the device performance impact performance, has important influence on reliability and safety. The Box-Behnken test scheme based on the variance analysis and response effects of design parameters on plane scroll spring method on the output performance of the building the regression model of the output performance; the flat spiral spring used in the separation device as an example, based on the experimental results, a model for the optimal design of plane scroll spring; the separation device performance test, verify the effectiveness of the optimal design model of plane scroll spring. The main contents of this paper include: (1) the establishment of plane scroll spring performance test Box-Behnken test system design based on the analysis, using the variance, error analysis and response surface method, analysis of plane scroll spring design The parameters (thickness, width and length) of the coil spring torque, influence of shock release and release time performance. The experimental results show that the plane scroll spring thickness, width and length of torque, impact release and release time has significant effect; the thickness is the most significant factors affecting the performance of the three parameters, the cross term length with the thickness and width of the influence on the performance of the three parameters is not significant; a plane scroll spring torque, a regression model between the release and the release time and the impact of design parameters, and through error analysis, correlation coefficient, reliability analysis, verify the validity of the model and credibility for performance optimization design for plane scroll spring the theory of support. (2) to design the plane scroll spring separation device as the application background, the plane scroll spring test based on the results of the analysis to the plane scroll spring thickness, width and length As optimization variables, and the minimum impact of minimum release release time as the optimization objective, the connection strength considering the output torque, locking force, load reduction and performance constraints, a multi-objective optimization design model of flat spiral spring, a multi-objective evolutionary algorithm for solving the optimal design scheme. The design of case analysis shows that compared with the traditional design scheme optimization design, release the impact and release time were reduced by 24.7% and 4.8%. (3) plane scroll spring optimization scheme is applied to the separation device, the bearing capacity, the impact of the release, release time and high temperature environment test and analysis. The comparative analysis of test results of optimization design and traditional design show that the loading plane scroll spring release the impact test value and the theoretical value of error was 2.8%, loading to 5000 N optimization scheme to release the impact of maximum and minimum values were decreased by 49.5% and 5.3%; and The error between the measured time and the theoretical value of the time of plane scroll spring release is 2.8%, and the maximum and minimum time of the optimal release time is 4.4% and 2.8% respectively, and the separation device can be unlocked in the range of -45 to 80 degrees.

【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH135

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