印制电子喷墨打印机力学性能分析与结构优化
发布时间：2019-03-19 16:23
【摘要】：“印制电子”是指利用各种印制技术形成电子元器件和电路的电子产品。喷墨打印作为印制电子技术的一种,是利用喷墨打印机将导电性墨水喷射到各种基材上形成导电线路。相比于传统“减成法”制造PCB板,喷墨打印具有高效、低耗、节能、环保等一系列优点,已经逐渐成为人们关注的焦点。 论文以昆山海斯电子有限公司研发的IJDAS300a型印制电子喷墨打印机为研究对象,对其框架结构进行静、动态力学性能分析与优化。首先,利用有限元法,选用梁单元和集中质量单元,建立合理、准确的简化分析模型。然后通过ANSYS应用软件分析打印机静态力学性能,分析其框架在不同工况下,结构关键点处应力、应变、位移和转角。结果表明框架最大应力仅1.43Mpa,远小于铝合金的屈服应力,上部横梁相对位移变化仅为12μm,最大转角Tx、Ty分别为7.23*10-6(rad)和4.64*10-5(rad)。其次,对框架结构进行振动分析,得到框架结构的前六阶固有频率和模态,其一阶固有频率为122Hz,远大于电机的工作频率,不会发生共振。同时分析了框架在慢速和常速两种移动载荷作用下上部横梁的瞬态响应,得到在慢速下,位移响应的最大值仍为12μm,与静载作用下位移值一致,而在常速作用下,位移值约12.5μm。最后,依据静态和动态分析的数据,提出了结构改进方案并与改进前的框架进行了分析对比,得出在静载作用下,位移值整体略有减小,一阶固有频率提升至133.5Hz,框架重量减少8%,整机刚度得到提高。
[Abstract]:"printed electronics" refers to the use of a variety of printed technology to form electronic components and circuits of electronic products. Inkjet printing, as a kind of printing electronic technology, uses inkjet printer to jet conductive ink onto various substrates to form conductive circuit. Compared with the traditional "reduction method" to make PCB board, inkjet printing has a series of advantages, such as high efficiency, low consumption, energy saving, environmental protection and so on, which has gradually become the focus of people's attention. In this paper, IJDAS 300a printed electronic inkjet printer developed by Kunshan Hayes Electronics Co., Ltd is taken as the research object, and the static and dynamic mechanical properties of its frame structure are analyzed and optimized. Firstly, using the finite element method, the beam element and the concentrated mass element are selected to establish a reasonable and accurate simplified analytical model. Then the static mechanical properties of the printer are analyzed by ANSYS application software, and the stress, strain, displacement and rotation angle of the frame at the key points of the structure under different working conditions are analyzed. The results show that the maximum stress of the frame is only 1.43 MPA, which is much less than the yield stress of aluminum alloy. The relative displacement of the upper beam is only 12 渭 m, and the maximum rotation angle Tx,Ty is 7.23 脳 10 ~ 6 (rad) and 4.64 脳 10 ~ 5 (rad)., respectively. Secondly, the first six natural frequencies and modes of the frame structure are obtained by vibration analysis. The first order natural frequency of the frame structure is 122Hz, which is much larger than the working frequency of the motor, and the resonance will not occur. At the same time, the transient response of the upper beam under slow and constant moving loads is analyzed. The maximum displacement response is still 12 渭 m at slow speed, which is consistent with the displacement value under static load, but under the constant velocity, the maximum value of displacement response is 12 渭 m under slow speed, and is consistent with the displacement value under static load, while under the constant velocity, the maximum displacement response is still 12 渭 m. The displacement value is about 12.5 mm. Finally, according to the data of static and dynamic analysis, the scheme of structural improvement is put forward and compared with the frame before improvement. It is concluded that under static load, the overall displacement value decreases slightly, and the first order natural frequency is raised to 133.5Hz. The weight of the frame is reduced by 8% and the stiffness of the whole machine is improved.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP334.83
[Abstract]:"printed electronics" refers to the use of a variety of printed technology to form electronic components and circuits of electronic products. Inkjet printing, as a kind of printing electronic technology, uses inkjet printer to jet conductive ink onto various substrates to form conductive circuit. Compared with the traditional "reduction method" to make PCB board, inkjet printing has a series of advantages, such as high efficiency, low consumption, energy saving, environmental protection and so on, which has gradually become the focus of people's attention. In this paper, IJDAS 300a printed electronic inkjet printer developed by Kunshan Hayes Electronics Co., Ltd is taken as the research object, and the static and dynamic mechanical properties of its frame structure are analyzed and optimized. Firstly, using the finite element method, the beam element and the concentrated mass element are selected to establish a reasonable and accurate simplified analytical model. Then the static mechanical properties of the printer are analyzed by ANSYS application software, and the stress, strain, displacement and rotation angle of the frame at the key points of the structure under different working conditions are analyzed. The results show that the maximum stress of the frame is only 1.43 MPA, which is much less than the yield stress of aluminum alloy. The relative displacement of the upper beam is only 12 渭 m, and the maximum rotation angle Tx,Ty is 7.23 脳 10 ~ 6 (rad) and 4.64 脳 10 ~ 5 (rad)., respectively. Secondly, the first six natural frequencies and modes of the frame structure are obtained by vibration analysis. The first order natural frequency of the frame structure is 122Hz, which is much larger than the working frequency of the motor, and the resonance will not occur. At the same time, the transient response of the upper beam under slow and constant moving loads is analyzed. The maximum displacement response is still 12 渭 m at slow speed, which is consistent with the displacement value under static load, but under the constant velocity, the maximum value of displacement response is 12 渭 m under slow speed, and is consistent with the displacement value under static load, while under the constant velocity, the maximum displacement response is still 12 渭 m. The displacement value is about 12.5 mm. Finally, according to the data of static and dynamic analysis, the scheme of structural improvement is put forward and compared with the frame before improvement. It is concluded that under static load, the overall displacement value decreases slightly, and the first order natural frequency is raised to 133.5Hz. The weight of the frame is reduced by 8% and the stiffness of the whole machine is improved.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP334.83
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