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2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM)最新文献

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Scheme Design and Verification of Heavy-duty Universal Launch Base under Strong Constraints 强约束下重型通用发射基地方案设计与验证
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021539
Hu Binglun, Peng Xueming, Qu Maohua, Li Chong
In order to solve the problem of “The base must be replaced for cartridge replacement” caused by the difference of cartridge length in the current general launch system, this paper proposes an adjustable base which can realize two state height switching and self-locking in a narrow space under the constraint of limited launch compartment space and strong launch recoil force. The key structural parameters are obtained through mechanical analysis, the multi-body dynamics model is established based on Pro/E, the kinematics performance is analyzed based on the virtual displacement principle, and the kinematics and dynamics simulation is verified through ADAMS. Finally, the load performance of the adjustable base is verified through HyperMesh. The results show that the adjustable base proposed in this paper can meet the installation and launch requirements of two types of multi type cartridge, greatly improving the versatility of the launch system and the convenience of adding multi type weapons to ships.
为了解决目前一般发射系统中由于弹筒长度不同而导致的“更换弹筒必须更换基座”问题,本文提出了一种可调基座,在有限的发射舱空间和强大的发射后坐力约束下,在狭小的空间内实现两种状态高度切换和自锁。通过力学分析获得关键结构参数,基于Pro/E建立多体动力学模型,基于虚拟位移原理对其运动学性能进行分析,并通过ADAMS进行运动学和动力学仿真验证。最后,通过HyperMesh验证了可调底座的负载性能。结果表明,本文提出的可调基座能够满足两种多型弹的安装和发射要求,大大提高了发射系统的通用性和舰载多型武器的便利性。
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引用次数: 0
The Liquid Rocket Engine Experiment Data Quality Improvement Based on 3σ-LMBP 基于3σ-LMBP的液体火箭发动机实验数据质量改进
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021434
Yichen Zhong, Jingwen Fan, Jie Chen, Zhujun Ren, Zijun Liu
During the ground test of liquid rocket engine, the complex on-site experimental environment will lead to abnormal sensor output, and affect subsequent data analysis. For the acceleration data's zero drift problem, the Levenberg Marquardt BP neural network is introduced in this paper to compensate and correct it, and the standard deviation method is used to eliminate the abnormal data, in which the 3σ-LMBP model constructed. The experimental data process shows that this method can improve the data quality, and ensure the follow-up data characteristic extraction. Finally, aiming at the internal causes of zero drift, the external circuit compensator design are proposed to comprehensively solve the problem of zero drift and improve the data quality.
在液体火箭发动机地面试验过程中,复杂的现场实验环境会导致传感器输出异常,影响后续的数据分析。针对加速度数据的零漂移问题,引入Levenberg Marquardt BP神经网络对其进行补偿和修正,采用标准差法消除异常数据,构建了3σ-LMBP模型。实验数据处理表明,该方法可以提高数据质量,保证后续数据特征提取。最后,针对零位漂移的内部原因,提出了外路补偿器设计,以全面解决零位漂移问题,提高数据质量。
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引用次数: 0
Optimizing of vertical lathe sliding pillow based on TRIZ/DOE 基于TRIZ/DOE的立式车床滑枕优化
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021479
Shang Liu, Xiaoxia Guo, Yulong Xu, Meng Lv, Han Wu
Aim to reduce the deformation of sliding pillow in vertical lathe, related literature are reviewed and find that parameter optimization design method is widely used. However, this method is in essence to compromise the design parameters and does not eliminate the design conflicts. Therefore, the combination of TRIZ and parameter optimization design method is proposed to solve this problem. Our job include next three steps. Firstly, the framework of parameter optimization design combined with TRIZ is proposed. Secondly, the flowchart of combining TRIZ with parameter optimization design is established. Finally, the proposed method was applied to redesign the sliding pillow. ANSYS Workbench software was used to optimize the design, and lightweight and reducing deformation were taken as the design objectives. The simulation results show that, compared with the original design, the sliding pillow deformation is reduced by 17.049%, and the proposed method extends the conceptual solution space of the simple parameter optimization design method.
为了减少立式车床滑枕的变形,对相关文献进行了回顾,发现参数优化设计方法得到了广泛的应用。然而,这种方法实质上是对设计参数的妥协,并不能消除设计冲突。因此,提出了TRIZ与参数优化设计方法相结合的方法来解决这一问题。我们的工作包括以下三个步骤。首先,提出了结合TRIZ的参数优化设计框架。其次,建立了TRIZ与参数优化设计相结合的流程图。最后,将该方法应用于滑动枕的再设计。采用ANSYS Workbench软件进行优化设计,以轻量化和减小变形为设计目标。仿真结果表明,与原设计相比,滑动枕变形减小了17.049%,扩展了简单参数优化设计方法的概念解空间。
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引用次数: 0
Match analysis of green manufacturing based on cloud platform 基于云平台的绿色制造匹配分析
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021338
Wentao Gao, Jianfeng Lu, Hao Zhang, Tiaojuan Han
As the scale of the manufacturing industry continues to expand and environmental problems are gradually exposed, green manufacturing is an inevitable choice for the current manufacturing industry. This paper considers a secondary supply chain composed of manufacturers and suppliers, with the purpose of encouraging both parties to adopt green and low-carbon behaviors, for the two cases of cloud platform or not, a game model is established, establishes a game model, conducts matching analysis, and obtains the optimal pricing strategy for government subsidies and platform certification fees. Meanwhile, the environmental impact (EI) is introduced to evaluate the matching results of the matching
随着制造业规模的不断扩大和环境问题的逐渐暴露,绿色制造是当前制造业的必然选择。本文考虑由制造商和供应商组成的二级供应链,以鼓励双方采取绿色低碳行为为目的,针对是否有云平台两种情况,建立博弈模型,建立博弈模型,进行匹配分析,得出政府补贴和平台认证费用的最优定价策略。同时,引入环境影响(EI)对匹配结果进行评价
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引用次数: 0
Optical encryption of gray image based on CS and CGH with double chaotic system 双混沌系统下基于CS和CGH的灰度图像光学加密
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021558
Xueyan Zhao, Zhao Zhang, Shuqi Niu, Xintong Tian
In this paper, a novel image encryption algorithm is proposed by combining Logistic chaotic map, 4D NHS hyperchaotic system, compressed sensing (CS), computer generated hologram (CGH) and two-dimensional discrete cosine transform (DCT). Firstly, the gray image is sparse represented by two-dimensional discrete cosine transform (DCT). The sparse matrix obtained by index sort scrambling is scrambled. For further encryption, the pixel scrambling uses the Logistic chaotic system to generate the scrambling vector. Subsequently, CGH encryption was performed and the Logistic chaotic map and 4D NHS hyperchaotic system were used as double keys to obtain the final encrypted picture.
本文将Logistic混沌映射、4D NHS超混沌系统、压缩感知(CS)、计算机生成全息图(CGH)和二维离散余弦变换(DCT)相结合,提出了一种新的图像加密算法。首先,利用二维离散余弦变换(DCT)对灰度图像进行稀疏表示;对索引排序置乱得到的稀疏矩阵进行置乱。为了进一步加密,像素置乱使用Logistic混沌系统生成置乱向量。随后进行CGH加密,使用Logistic混沌映射和4D NHS超混沌系统作为双密钥,得到最终的加密图像。
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引用次数: 0
Study on the Smart Logistics Supply Chain Path for Smart Manufacturing Enterprises in the Post-Epidemic Era–––––Taking Dongguan BG Technology Co. as an Example 后疫情时代智能制造企业智能物流供应链路径研究–––––以东莞BG科技有限公司为例
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021410
Fei Lei, Xiaoshuang Yi, Yifang Zhan, Xuehua Lv, Qi Xiao, Ziming Tong, Shixing Lei
The new crown epidemic sweeping the world has brought great challenges and uncertainties to the logistics supply chain of intelligent manufacturing enterprises. In the post-epidemic era where epidemic prevention is normalized, the traditional supply chain management of intelligent manufacturing enterprises relying on traditional labor, low informationization and low efficiency has revealed long material procurement cycle, serious information silos, difficulty in meeting customer delivery time, difficulty in improving efficiency and effectiveness, and high operation costs. The rise and development of smart supply chain provides an effective method and path for smart manufacturing to highly effect the rapidly uncertain changing logistics situation and the increasingly fierce international market competition. If smart manufacturing enterprises want to give full play to the potential and advantages of smart supply chain, they need to build a scientific, systematic and collaborative smart supply chain management system as a support. Based on this, the article proposes to build a networked, automated, digital and intelligent technology and management integrated system of smart supply chain for smart manufacturing enterprises to continuously improve the core competitiveness of the supply chain, and expects to provide some reference for smart manufacturing enterprises to quickly build a smart logistics system.
席卷全球的新冠疫情给智能制造企业的物流供应链带来了巨大的挑战和不确定性。在疫情防控常态化的后疫情时代,依靠传统劳动力、信息化程度低、效率低下的智能制造企业传统供应链管理,暴露出物资采购周期长、信息孤岛严重、难以满足客户交货期、难以提高效率和效益、运营成本高等问题。智能供应链的兴起和发展,为智能制造高效应对瞬息万变的物流形势和日益激烈的国际市场竞争提供了有效的方法和路径。智能制造企业要想充分发挥智能供应链的潜力和优势,需要构建科学、系统、协同的智能供应链管理体系作为支撑。基于此,本文提出为智能制造企业构建网络化、自动化、数字化、智能化的智能供应链技术与管理集成系统,不断提升供应链核心竞争力,期望为智能制造企业快速构建智能物流体系提供一些参考。
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引用次数: 0
On-line comprehensive measurement method and system for taper thread of pipe in non - contact 非接触式管道锥度螺纹在线综合测量方法及系统
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021541
Yanyu Chen, Dongzhuang Tian, Mengmeng Dong, C. Zhou, Hongjie Tian
Traditional measurement method is difficult to implement automatic and parametric online measurement of threads, which restricts the automatic and intelligent production of threaded workpieces. In order to realize automatic and parametric on-line testing of drill pipe taper thread, a non-contact taper thread comprehensive system for the pipe was developed. The measurement method of taper thread and the data processing method in the system was studied. Based on spectral confocal principle, the measuring method of taper thread profile scanning was proposed. It was analyzed that the error of measurement principle is negligible due to the difference between the central axis of thread and the workpiece axis. The thread central axis was determined by scanning the thread stop. To gain the thread contour curve, two generatrices that pass through the central axis of a thread were scanned by the sensor. Due to the abnormal data collected by the sensor, the capability gage of the system was low, a data processing algorithm based on mathematical model matching of curves was developed, and the curves was piecewise fitted by least square method. The experimental results showed that the short range sensor and large pitch taper thread contour scanning measurement method can achieve high precision, high efficiency and comprehensive measurement of box thread. The capability gage (Cg) of the system is less than 0.006mm, capability gage index (Cgk) is less than 0.03mm, gauge repeatability & reproducibility (GR&R) is less than 5% of the workpiece tolerance. It can meet production demand and solve industry technical problem that the optical measurement method is difficult to realize the thread contour scanning measurement, especially the sweep measurement of internal thread contour.
传统的测量方法难以实现螺纹的自动、参数化在线测量,制约了螺纹工件的自动化、智能化生产。为了实现钻杆锥度螺纹的自动、参数在线检测,研制了一种非接触式钻杆锥度螺纹综合检测系统。研究了该系统中锥度螺纹的测量方法和数据处理方法。基于光谱共聚焦原理,提出了锥度螺纹轮廓扫描测量方法。分析了由于螺纹中心轴线与工件轴线的差异,测量原理的误差可以忽略不计。通过扫描螺纹止点确定螺纹中心轴。为了获得螺纹轮廓曲线,传感器对穿过螺纹中心轴线的两个母线进行扫描。针对传感器采集到的数据异常,导致系统性能指标较低的问题,提出了一种基于曲线数学模型匹配的数据处理算法,并采用最小二乘法对曲线进行分段拟合。实验结果表明,采用近距离传感器和大螺距锥度螺纹轮廓扫描测量方法可以实现高精度、高效率、全方位的箱体螺纹测量。该系统的能力量规(Cg)小于0.006mm,能力量规指数(Cgk)小于0.03mm,量规可重复性和再现性(GR&R)小于工件公差的5%。满足生产需求,解决了光学测量方法难以实现螺纹轮廓扫描测量,特别是内螺纹轮廓扫描测量的行业技术难题。
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引用次数: 0
Design of Referee System for Competition Based on Wireless Sensors Networks 基于无线传感器网络的比赛裁判系统设计
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021351
Zhaoxiang Dong, Yulan Wei, Siqi Li, Zhong Shao, Haifeng Xu, Qingzhu Zhang
In the current scoring process of robot competition in primary and secondary schools, most of them use manual referees, resulting in insufficient fairness in the competition, waste of human and material resources and other problems. In this paper, sensor technology is used to detect the running position information and related parameters of the competition robot, LoRa wireless communication technology is used to realize the signal transmission between the signal acquisition equipment and the gateway, and the upper computer software is designed to display the score and complete the record, which makes up for the shortcomings of manual scoring in the competition. The experimental results show that the system has high stability, fast scoring speed, and can complete the automatic timing and scoring of robot competitions, automatically feedback the completion of robot tasks and judge the scores according to the completion of tasks.
在目前中小学机器人比赛的评分过程中,大多采用人工裁判,造成比赛公平性不足,浪费人力物力等问题。本文采用传感器技术检测比赛机器人的跑位信息及相关参数,采用LoRa无线通信技术实现信号采集设备与网关之间的信号传输,并设计上位机软件显示成绩并完成记录,弥补了比赛中人工计分的不足。实验结果表明,该系统稳定性高,评分速度快,能够完成机器人比赛的自动计时和评分,自动反馈机器人任务的完成情况,并根据任务的完成情况判断得分。
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引用次数: 0
Research on Manufacturing Quality Control Method Based on the Probabilistic Intuitionistic Fuzzy Set Prediction Model and the Triple Exponentially Weighted Moving Average Control Chart 基于概率直觉模糊集预测模型和三指数加权移动平均控制图的制造质量控制方法研究
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021385
Xianlin Ren, Chengrui Han, Yiduo Tian, Laixian Chen, B. Liu
To address the problem of late warning time of control charts, this paper proposes a method for manufacturing quality control by combining the PIFS-PSNN prediction model with the TEWMA control chart. The method can do pre-alert and is capable of dealing with various uncertainties and ambiguities in the data during the manufacturing process as well as detecting minor shifts in quality characteristics. The fuzzy time series prediction model is employed to predict the manufacturing quality characteristics data and build the control chart based on the predicted data, to detect the shift in the quality characteristics data earlier and feedback to the manufacturing process. Finally, the effectiveness of the proposed method is demonstrated by a case study.
针对控制图的时滞问题,提出了一种将PIFS-PSNN预测模型与TEWMA控制图相结合的制造质量控制方法。该方法能够进行预警,能够处理制造过程中数据的各种不确定性和模糊性,以及检测质量特性的微小变化。采用模糊时间序列预测模型对制造质量特征数据进行预测,并根据预测数据建立控制图,以便更早地发现质量特征数据的变化并反馈给制造过程。最后,通过实例验证了该方法的有效性。
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引用次数: 1
Calibration Method for Simulation Model Parameters Based on Physical and Simulation Test Data 基于物理与仿真试验数据的仿真模型参数标定方法
Pub Date : 2022-11-18 DOI: 10.1109/WCMEIM56910.2022.10021405
Haiyang Ma, Xiaobo Zhou, Yu Hong, Ning Yang
In the process of product manufacturing, the application of simulation technology enables designers to evaluate the design scheme of products more accurately at the early stage of design, thereby improving the efficiency of product development and reducing the development cost. Simulation technology as an important means in the process of product development, the credibility of simulation model will directly affect the speed of product development. The calibration technology of simulation model is an important means to improve the credibility of simulation model. This paper proposes a method for calibrating simulation model based on physical and simulation tests. Firstly, the parameters to be calibrated are classified into stable parameters and floating parameters. Then the stable parameters are calibrated and corrected directly by physical test data. Finally, a mathematical model is constructed based on physical test data and simulation test data to complete the calibration of the floating parameters.
在产品制造过程中,仿真技术的应用使设计人员能够在设计初期更准确地评估产品的设计方案,从而提高产品开发的效率,降低开发成本。仿真技术作为产品开发过程中的重要手段,仿真模型的可信度将直接影响到产品开发的速度。仿真模型标定技术是提高仿真模型可信度的重要手段。提出了一种基于物理试验和仿真试验的仿真模型标定方法。首先,将待标定参数分为稳定参数和浮动参数。然后直接利用物理试验数据对稳定参数进行标定和校正。最后,根据物理试验数据和仿真试验数据建立数学模型,完成浮动参数的标定。
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引用次数: 0
期刊
2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM)
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