Volume 89
Published on August 2024Volume title: Proceedings of the 2nd International Conference on Functional Materials and Civil Engineering
Pure electric vehicle technology faces numerous technical challenges during the process of independent research and development, with the safety and endurance of power batteries being particularly critical. The Battery Management System (BMS) is a core factor affecting the performance and safety of electric vehicles. The normal operation of the BMS is essential for ensuring the reliability of electric vehicles. However, in practical applications, the BMS may encounter faults that can lead to a decline in battery performance, a reduction in lifespan, and even trigger safety incidents. Therefore, the development of an efficient and accurate fault analysis and diagnostic system is particularly important. This paper systematically explores the fault issues of electric vehicle BMS, including the composition, working principles, and main functions of the BMS, as well as the classification, level definition, case analysis, and resolution measures of faults. The article also provides a detailed introduction to fault analysis methods, including qualitative and quantitative analyses. Finally, based on recent hot topics and the latest research progress, it is concluded that model-based fault diagnosis will become increasingly important. This paper aims to provide a reference for the development of the field of electric vehicle battery management fault diagnosis technology.
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This paper investigates the impact of the position of piezoelectric actuators on the vibration control effect of the membrane plane composed of solar sail materials with a given unit area. Firstly, the nonlinear vibration equation of the membrane structure is perfected based on the system equation established by Yifan Lu et al. Then, the modal coupling effect pointed out by Liu Xiang is considered, and the fourth-order modal displacement generated by the piezoelectric actuator in vibration control is derived. Subsequently, the sliding mode controller used in vibration control is designed based on Lyapunov stability theory, and its effectiveness is verified through Simulink simulation. The sliding mode controller is used to calculate the required excitation signal and apply it to the piezoelectric patches. The reverse force is generated through the inverse piezoelectric effect of the patches to actively suppress the vibration of the solar sail. By changing the position and size of each piezoelectric actuator on the solar sail plane, this paper compares the impact of different layout positions on vibration control, and proposes an optimal layout scheme for the position of the piezoelectric patches in terms of control effectiveness.
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The burgeoning demand for more efficient energy storage systems necessitates advancements in electrode material technologies. Bicontinuous structures, synthesized using tri-block copolymers, present a promising avenue due to their unique properties that can enhance battery performance. This study aims to explore the potential of tri-block copolymer-directed self-assembly in synthesizing bicontinuous structures and to assess their application as innovative electrode materials in electrical energy storage systems. It was found that the synthesized bicontinuous structures demonstrate superior ionic pathways, resulting in enhanced ion transport and improved electrochemical performance compared to traditional electrode materials. The copolymers contribute to the formation of a highly ordered mesoporous architecture, leading to increased surface area and more active sites for electrochemical reactions. Furthermore, these structures exhibit significant stability during cycling, attributed to their ability to accommodate volume expansions and distribute mechanical stress effectively. Future research should focus on the extension of the synthesis process and the further optimization of the electrochemical properties in order to make the transition from laboratory studies to practical applications.
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Permeable concrete, characterized by continuous porosity, offers excellent properties such as breathability, water permeability, sound absorption, water purification, and environmental enhancement. This paper comprehensively reviews previous research on permeable concrete, encompassing studies on mix design, workability, mechanical properties, drainage performance, sound absorption, and durability. It also discusses improvement measures and application prospects. Research indicates that the performance of permeable concrete is influenced by factors such as mix design, material composition, and construction techniques. Optimizing mix design, modifying material composition, and enhancing workability and mechanical properties can further improve the performance of permeable concrete. Permeable concrete shows broad application prospects in road engineering, landscaping, and environmental engineering, but further research and standardization are needed to support its widespread adoption.
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Taking the integration of modern information technology and green building as the research background, we study the current status of BIM technology and green building development and application in the existing green building evaluation standard system, analyze the obstacles existing in the practical application of BIM technology in the whole life cycle of green building under the new global evaluation standard, and point out the direction of further research. The results of the study show that at this stage, BIM technology and green building-related regulations and systems are not yet sound, the evaluation standard system is not yet perfect, and there is a lack of organic synergy between each other,"Siloing" at certain points throughout the life cycle of a building. Green buildings are far away from the development and application of BIM technology and green buildings. The phenomenon of "isolated" in some stages of the whole life cycle of the building, some links appear as an "island" phenomenon, there is still a gap between green building and comprehensive coverage, and the widespread application of BIM technology needs to be promoted. In the future, the application research on sustainable development of green buildings based on BIM should be committed to further improve the relevant regulations, systems, and evaluation standards, create a core database of all relevant information in each stage of the whole life cycle of the building, realize the interactive sharing of information, implement the BIM integrated application mode, give full play to the advantages of the whole life cycle and integrated management of BIM, and integrate BIM technology with green building in a deeper way.
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Under the new situation, the development process of urbanization is accelerating, the construction industry is developing well, the number and scale of civil engineering projects are gradually expanding, and the construction technology, as the core of the project construction, has always been the focus of people's attention. Because the construction quality will directly affect the safety of personnel, it is necessary to clarify the characteristics of construction technology and improve the existing civil engineering construction technology. Realize the technical innovation of foundation pit construction, prestressed construction, reinforced concrete construction and other links, improve the technical content of engineering construction under the premise of ensuring the construction quality, and extend the service life of the building as far as possible.
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Three-dimensional integrated circuits have higher integration than two-dimensional integrated circuits, and can obtain higher performance and lower power consumption in a certain space. In order to fulfill higher efficiency, thermal management becomes particularly important in 3D integration technology. However, the traditional heat dissipation method cannot satisfy the heat dissipation needs of three-dimensional integrated circuits, which require better heat dissipation methods to be developed. This paper introduces the realization of three-dimensional integrated circuit using silicon via (TSV) technology, which allows the chip to be vertically stacked to transmit information. This paper summarizes the research methods and findings of three-dimensional integrated circuit heat dissipation in recent years, including thermal through silicon via (TTSV) and microchannel cooling. It also emphasizes the advantages and disadvantages of both mehods, and the challenges faced in current research via an overview. The future research trend for both heat dissipation methods mainly consists of combining special algorithms to achieve thermal-electrical codesign and thermal management of three-dimensional integrated circuits.
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Thermal power plants, which produce energy from the burning of fossil fuels that in turn generate turbine-turning steam, contribute a large proportion of energy in the world. Research on how we could apply fluid dynamic and thermodynamic principles in the design of turbines is crucial to improving their efficiency and fuel consumption. This paper mainly aims to explore and summarize how the power efficiency of turbines is maximized in thermal power plants and analyze the designs of turbines that increase proficiency. Literature and past paper review will be the primary method of this research. The main findings of this research are that efficiency in thermal turbines can be increased in three principal ways: a multi-stage expansion mechanism, the application of alternating blades, and in implementation of a reheating system. Using these methods, efficiency has been increased almost a million-fold in steam turbines. The purpose of this paper is to gain insights into how energy output in thermal power plant turbines is maximized and the specific designs of turbines that improve its efficiency.
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Many studies have examined the properties and possible uses of carbon dots (CDs), a novel class of zero-dimensional carbon nanomaterials. Many notable features are present in them, such as robust colloidal stability, easy surface functionalization and bioconjugation, robust biocompatibility in vivo and in vitro settings, resistance to photobleaching, an environmentally benign synthesis process, and a comparatively low production cost. These characteristics make carbon dots an attractive option for a variety of possible biomedical uses. This work provides a thorough review of the most recent developments in the biomedical sciences, covering the physicochemical characteristics, synthesis techniques, and uses of carbon dots in biosensing, bioimaging, and disease treatment. It is based on a thorough examination of the relevant literature and experimental results. According to the study findings that are now accessible, carbon dots have a lot of potential applications in the biomedical industry. These properties make carbon dots suitable for use in bioimaging, biosensing, and disease treatment. Nevertheless, there are still some challenging issues that require further investigation and analysis. It is anticipated that further research and exploration will result in carbon dots making a significant contribution to human health in the future, and that the ongoing innovation and development of carbon dot technology will result in a significant transformation of the biomedical field.
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The suspension system is an important part of the car, the main function is to alleviate the road surface does not level brought about by the shake, to ensure that the vehicle driving smoothness and comfort, so as to improve the vehicle handling performance and safety, improve the vehicle to reduce the vibration performance more and more become a hot topic in the industry. Among them, semi-active suspension is a popular suspension system. This paper explains the significance and classification of the role of the suspension, and gives a relevant introduction to the magnetorheological fluid, on the basis of which it combines the domestic and international research results, looks forward to the development trend of the semi-active suspension of the vehicle, analyzes the advantages and shortcomings of four important semi-active suspension control strategies, and finally introduces the reinforcement learning and combines the reinforcement learning with the existing control strategies of the semi-active suspension, and designs a reliable reward function to enhance the suspension's damping performance by taking into account the multifaceted driving factors. The reward function to enhance the damping ability of the suspension by considering multiple driving factors, which can provide a reference for further research on the control of magnetorheological semi-active suspensions for vehicles.
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