Acta Mechanica Sinica最新文献_第10页

Scheme to increase the ultimate pressure of the China-type cubic press 提高中国型立方体压力机极限压力的方案

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-05 DOI: 10.1007/s10409-024-24225-x

Shengxue Wang (, ), Hantao Hou (, ), Zhenze Yang (, ), Yu Teng (, ), Zhiwen Wang (, ), Hongyu Zhao (, ), Yang Liu (, ), Hongan Ma (, ), Xiaopeng Jia (, )

{"title":"Scheme to increase the ultimate pressure of the China-type cubic press","authors":"Shengxue Wang \u0000 (, ), Hantao Hou \u0000 (, ), Zhenze Yang \u0000 (, ), Yu Teng \u0000 (, ), Zhiwen Wang \u0000 (, ), Hongyu Zhao \u0000 (, ), Yang Liu \u0000 (, ), Hongan Ma \u0000 (, ), Xiaopeng Jia \u0000 (, )","doi":"10.1007/s10409-024-24225-x","DOIUrl":"10.1007/s10409-024-24225-x","url":null,"abstract":"<div><p>The China-type cubic press (CCP) is widely used in the high-pressure field because of its simple operation and low cost. However, the low ultimate pressure inside the cavity of CCP has limited its application. In order to improve the ultimate pressure of the cavity, this paper simulates the pressure transfer efficiency and the Von Mises stress (VMS) of the tungsten carbide (WC) anvil. We find that the effect of the pretightening force of the WC anvil can be changed by changing the angle of the steel supporting ring. When the angle of the steel supporting ring is 1.2°, the pretightening force of the WC anvil is the most uniform, and the support effect of the WC anvil is the best. At the same time, this paper designs a double-beveled WC (D-WC) anvil. The D-WC anvil can not only improve the ultimate pressure of the cavity, but also ensure the stability of the cavity and the durability of the WC anvil. The design in this paper can also be used with the first-stage pressurization assembly to achieve better pressurization effect.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic characteristics of aircraft landing gear retraction mechanism under the coupling effects of extreme conditions 极端条件耦合效应下飞机起落架收放机构的动态特性

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-05 DOI: 10.1007/s10409-024-24105-x

Shun Gao (, ), Shouwen Fan (, ), Shuai Fan (, )

{"title":"Dynamic characteristics of aircraft landing gear retraction mechanism under the coupling effects of extreme conditions","authors":"Shun Gao \u0000 (, ), Shouwen Fan \u0000 (, ), Shuai Fan \u0000 (, )","doi":"10.1007/s10409-024-24105-x","DOIUrl":"10.1007/s10409-024-24105-x","url":null,"abstract":"<div><p>The extreme conditions severely constrain the dynamic characteristics of aircraft landing gear retraction mechanism (ALGRM). This paper proposes a dynamic modeling and analysis method for ALGRM considering the coupling effects of extreme conditions such as clearance joints, flexible rods, and salt spray corrosion. Firstly, the mathematical model for clearance joint and flexible rod is established and the dynamic model of ALGRM considering clearance joints and flexible rods is formulated based on Lagrangian equation. Furthermore, the salt spray corrosion model for clearance joint is developed using COMSOL simulation software. Finally, the effects of different temperatures and relative humidities on the corrosion depth of clearance joint and the dynamic characteristics of ALGRM under the coupling effects of extreme conditions are investigated. The results have found that the impact of extreme conditions on dynamics of system cannot be ignored. This study not only provides a theoretical foundation for predicting the dynamic characteristics of ALGRM under extreme conditions but also offers insights for the optimization design and corrosion protection efforts of landing gear.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of coupled vibration modes of dual-strip pan head on pantograph-catenary interaction 双条盘头的耦合振动模式对受电弓与轨道相互作用的影响

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-05 DOI: 10.1007/s10409-024-24164-x

Haochen Zhang (, ), Xianghong Xu (, ), Mengzhen Wu (, ), Rui Zhou (, )

{"title":"Effect of coupled vibration modes of dual-strip pan head on pantograph-catenary interaction","authors":"Haochen Zhang \u0000 (, ), Xianghong Xu \u0000 (, ), Mengzhen Wu \u0000 (, ), Rui Zhou \u0000 (, )","doi":"10.1007/s10409-024-24164-x","DOIUrl":"10.1007/s10409-024-24164-x","url":null,"abstract":"<div><p>The consistency of the dynamic behavior of the mechanical equivalent model of high-speed pantographs with that of actual high-speed pantographs under service conditions is crucial for the correctness and accuracy of the numerical simulation results of the pantograph-catenary interaction. Firstly, based on experimental data and the finite element method, models of a mass-point frame and reduced pan head were established, which can simulate the rolling and pitching motion characteristics of the dual-strip pan head. The correctness of the finite element numerical simulation of the pantograph-catenary system based on the model was verified through an industry standard and line tests. Then, the variation law of the standard deviation of the contact force (SDCF) in the speed range of 240–450 km/h was studied, and the mechanism of large fluctuation in SDCF was explained from the perspective of pantograph-catenary resonance. Finally, the influence of pan head degree of freedom and low-pass filtering frequency of the contact force time-domain signal on SDCF was studied, and the applicable speed level of the traditional three-mass model and 20 Hz filtering were provided.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The cross-sectional geometry regulated Poynting effect in ribbed silicone rubber tubes 横截面几何形状调节带肋硅橡胶管的波因廷效应

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-04 DOI: 10.1007/s10409-024-24173-x

Yangang Zhang (, ), Yifeng Hu (, ), Haibin Xue (, )

{"title":"The cross-sectional geometry regulated Poynting effect in ribbed silicone rubber tubes","authors":"Yangang Zhang \u0000 (, ), Yifeng Hu \u0000 (, ), Haibin Xue \u0000 (, )","doi":"10.1007/s10409-024-24173-x","DOIUrl":"10.1007/s10409-024-24173-x","url":null,"abstract":"<div><p>With the increasing and refined applications of silicone rubber devices in the biomedical field, it is of great significance to accurately describe and predict the mechanical behavior of them under large deformation. This paper finds that after considering the influence of higher-order shear strain on the normal stress, the Poynting effect in ribbed silicone rubber tubes with certain cross-sectional shapes exhibits a new phenomenon—a non-monotonic trend between axial deformation and twist angle. This paper develops a nonlinear finite element program for simulating large deformations of hyperelastic materials, and studies the Poynting effect in ribbed circular tubes of twisted silicone rubber. The results show that in the ribbed circular tubes with a porosity between 12% and 40% (with the number of ribs ranging from 12 to 26), there appears a normal to reverse conversion of the Poynting effect, that is, the axial extension ratio first decreases and then increases during a monotonic loading process, indicating that the influence of higher-order shear strain on normal stress cannot be ignored when the cross-sectional shape is complex. Especially in ribbed circular tubes with about 20% porosity, a substantial change of axial normal strain from −0.035% to 0.035% can be achieved within a twist angle range of 180°. Based on this, the quantitative influence of higherorder shear strain on normal stress is studied. These research results provide a theoretical basis for accurately controlling the axial expansion and contraction of twisted parts and indicate that a normal to reverse conversion of the Poynting effect can be implemented by designing the cross-sectional shape under certain conditions.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantitative biomechanical analysis of ureteral obstruction and peristalsis 输尿管梗阻和蠕动的定量生物力学分析

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-04 DOI: 10.1007/s10409-024-24136-x

Lin Zhu (, ), Qiao Li (, ), Yuanming Gao (, ), Lizhen Wang (, ), Yubo Fan (, )

{"title":"Quantitative biomechanical analysis of ureteral obstruction and peristalsis","authors":"Lin Zhu \u0000 (, ), Qiao Li \u0000 (, ), Yuanming Gao \u0000 (, ), Lizhen Wang \u0000 (, ), Yubo Fan \u0000 (, )","doi":"10.1007/s10409-024-24136-x","DOIUrl":"10.1007/s10409-024-24136-x","url":null,"abstract":"<div><p>Malignant ureteral obstruction may lead to renal function damage, renal colic, and infection. The impact of obstructive development on ureteral peristalsis was rarely studied, which requires further investigation. This study used theoretical biomechanical methods to study the motion characteristics of the ureteral wall and obtained the radial motion equation of the ureteral wall. The motion equation was solved by 4–5th order Runge Kutta method. Analyze the motion equation of the ureteral wall, derive the expression for malignant obstructive ureteral pressure, as well as the analytical expressions for radial displacement and circumferential stress of the ureteral wall. By analyzing the radial motion equation of the ureter, it can be found that peristalsis is influenced by the pressure difference between inside and outside. The analytical solutions for radial displacement and stress contained exponential terms. Under the condition of 50% obstruction, the displacement and stress of the ureter were reduced by 90.53% and 81.10%, respectively. This study established the radial motion equation of the ureter and provided analytical solutions for the radial displacement and stress of the obstructed ureter. Based on the radial motion equation of the ureter, the radial motion characteristics of the ureteral wall were explored, including peristalsis and disappearance of peristalsis. This study provided a quantitative relationship between ureteral obstruction and peristalsis. As the degree of obstruction increased, ureteral peristalsis gradually weakened or even disappeared.</p></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An efficient deep learning-based topology optimization method for continuous fiber composite structure 基于深度学习的高效连续纤维复合材料结构拓扑优化方法

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-04 DOI: 10.1007/s10409-024-24207-x

Jicheng Li (, ), Hongling Ye (, ), Yongjia Dong (, ), Zhanli Liu (, ), Tianfeng Sun (, ), Haisheng Wu (, )

{"title":"An efficient deep learning-based topology optimization method for continuous fiber composite structure","authors":"Jicheng Li \u0000 (, ), Hongling Ye \u0000 (, ), Yongjia Dong \u0000 (, ), Zhanli Liu \u0000 (, ), Tianfeng Sun \u0000 (, ), Haisheng Wu \u0000 (, )","doi":"10.1007/s10409-024-24207-x","DOIUrl":"10.1007/s10409-024-24207-x","url":null,"abstract":"<div><p>This paper presents a deep learning-based topology optimization method for the joint design of material layout and fiber orientation in continuous fiber-reinforced composite structure (CFRCS). The proposed method mainly includes three steps: (1) a ResUNet-involved generative and adversarial network (ResUNet-GAN) is developed to establish the end-to-end mapping from structural design parameters to fiber-reinforced composite optimized structure, and a fiber orientation chromatogram is presented to represent continuous fiber angles; (2) to avoid the local optimum problem, the independent continuous mapping method (ICM method) considering the improved principal stress orientation interpolated continuous fiber angle optimization (PSO-CFAO) strategy is utilized to construct CFRCS topology optimization dataset; (3) the well-trained ResUNet-GAN is deployed to design the optimal structural material distribution together with the corresponding continuous fiber orientations. Numerical simulations for benchmark structure verify that the proposed method greatly improves the design efficiency of CFRCS along with high design accuracy. Furthermore, the CFRCS topology configuration designed by ResUNet-GAN is fabricated by additive manufacturing. Compression experiments of the specimens show that both the stiffness structure and peak load of the CFRCS topology configuration designed by the proposed method have significantly enhanced. The proposed deep learning-based topology optimization method will provide great flexibility in CFRCS for engineering applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of neck width on transient flow characteristics in saccular intracranial aneurysm models 囊状颅内动脉瘤模型中颈部宽度对瞬时血流特征的影响

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-04 DOI: 10.1007/s10409-024-24196-x

Feng Shen (, ), Siyuan Cheng (, ), Xin Yang (, ), Xinran Lu (, ), Zhaomiao Liu (, )

{"title":"Influence of neck width on transient flow characteristics in saccular intracranial aneurysm models","authors":"Feng Shen \u0000 (, ), Siyuan Cheng \u0000 (, ), Xin Yang \u0000 (, ), Xinran Lu \u0000 (, ), Zhaomiao Liu \u0000 (, )","doi":"10.1007/s10409-024-24196-x","DOIUrl":"10.1007/s10409-024-24196-x","url":null,"abstract":"<div><p>Intracranial aneurysm (IA) is a prevalent cerebrovascular disease associated with high mortality and disability rates upon rupture. The hemodynamics of IA, which are significantly influenced by geometric parameters, directly impact its rupture. This study focuses on investigating the transient flow characteristics in saccular IA models fabricated using a water droplet-based method, specifically examining the influence of neck widths. Particle image velocimetry technique and numerical simulation were employed to investigate the dynamic evolution of flow structures within three IA models. The results reveal that neck width (<i>W</i>) has a substantial effect on flow characteristics in the neck region, subsequently impacting the deep flow inside the sac. Three distinct patterns were observed during flow evolution inside the sac: for <i>W</i> = 2 mm, two vortices occur and then disappear with relatively low average flow velocity; for <i>W</i> = 4 mm, enhanced effects of a high-speed jet result in periodic pulsatile flow velocity distribution while maintaining stable vortex core position; for <i>W</i> = 6 mm, significant changes in flow velocity occur due to size expansion and intensity increase of vortices. These findings demonstrate that neck widths play a complex role in influencing transient flow characteristics within IAs. Overall, this research contributes to further understanding transient flow behaviors in IAs.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On faults induced stress shielding to account for the formation of deep-buried reservoirs 关于断层诱发应力屏蔽以解释深埋储层的形成

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-04 DOI: 10.1007/s10409-024-24240-x

Xiaguang Zeng (, ), Guangyou Zhu (, ), Bin Zhao (, ), Jici Wen (, )

{"title":"On faults induced stress shielding to account for the formation of deep-buried reservoirs","authors":"Xiaguang Zeng \u0000 (, ), Guangyou Zhu \u0000 (, ), Bin Zhao \u0000 (, ), Jici Wen \u0000 (, )","doi":"10.1007/s10409-024-24240-x","DOIUrl":"10.1007/s10409-024-24240-x","url":null,"abstract":"<div><p>It is commonly accepted that the formation of oil and gas reservoirs in deep-buried strata is almost impossible due to the huge compaction of <i>in-situ</i> crustal stresses. Nevertheless, recent hydrocarbon explorations in the Tarim Basin have discovered reservoirs at depths exceeding 8 km. The reservoirs exhibit a strong correlation to the strata’s faults and large fractures, yet the precise underlying mechanical mechanism remains obscure. To illuminate how the faults may facilitate the existence of such deep-buried reservoirs, we consider three ideal scenarios involving unconventional hole-crack interactions under remote biaxial compression. Our focus is on the stress concentration of the hole, influenced by the long main cracks. Closed-form compressive stress solutions are obtained based on our simple theoretical models, showing that long cracks significantly reduce the stress concentration of nearby holes. We quantify the reducing effect of the cracks’ angle, surface friction, and pressure on the maximum shear and von Mises stresses around a hole, combining with finite element analysis results. The stress shielding effect is qualitatively consistent with the available experimental observations that the deep-buried caves are often located near the faults and large fractures in carbonate strata. Our results will be beneficial for future exploration of superdeep petroleum reservoirs.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 4","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of energetic flow structures on the aeolian transport of sediment and plastic debris 能流结构对沉积物和塑料碎片风化迁移的作用

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-04 DOI: 10.1007/s10409-024-24467-x

Manousos Valyrakis, Xiaohu Zhao (, ), Thomas Pähtz, Zhenshan Li (, )

{"title":"The role of energetic flow structures on the aeolian transport of sediment and plastic debris","authors":"Manousos Valyrakis, Xiaohu Zhao \u0000 (, ), Thomas Pähtz, Zhenshan Li \u0000 (, )","doi":"10.1007/s10409-024-24467-x","DOIUrl":"10.1007/s10409-024-24467-x","url":null,"abstract":"<div><p>Recently, significant progress has been made in conceptually describing the dynamic aspects of coarse particle entrainment, which has been explored experimentally for open channel flows. The aim of this study is to extend the application of energy criterion to the low mobility aeolian transport of solids (including both natural sediment and anthropogenic debris such as plastics), ranging from incomplete (rocking) to full (rolling) entrainments. This is achieved by linking particle movements to energetic flow events, which are defined as flow structures with the ability to work on particles, setting them into motion. It is hypothesized that such events should impart sufficient energy to the particles, above a certain threshold value. The concept’s validity is demonstrated experimentally, using a wind tunnel and laser distance sensor to capture the dynamics of an individual target particle, exposed on a rough bed surface. Measurements are acquired at a high spatiotemporal resolution, and synchronously with the instantaneous air velocity at an appropriate distance upwind of the target particle, using a hot film anemometer. This enables the association of flow events with rocking and rolling entrainments. Furthermore, it is shown that rocking and rolling may have distinct energy thresholds. Estimates of the energy transfer efficiency, normalized by the drag coefficient, range over an order of magnitude (from about 0.001 to 0.0048 for rocking, up to about 0.01, for incipient rolling). The proposed event-based theoretical framework is a novel approach to characterizing the energy imparted from the wind to the soil surface and could have potential implications for modelling intermittent creep transport of coarse particles and related aeolian bedforms.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic modeling and control strategy for tethered satellite systems in orbital debris management 轨道碎片管理中系留卫星系统的动态建模和控制策略

IF 3.8 2区工程技术

Acta Mechanica Sinica Pub Date : 2024-09-04 DOI: 10.1007/s10409-024-24262-x

Feng Gao (, ), Jiayang Li (, ), Fuxiang Dong (, ), Yi Ji (, ), Guanghui Sun (, )

{"title":"Dynamic modeling and control strategy for tethered satellite systems in orbital debris management","authors":"Feng Gao \u0000 (, ), Jiayang Li \u0000 (, ), Fuxiang Dong \u0000 (, ), Yi Ji \u0000 (, ), Guanghui Sun \u0000 (, )","doi":"10.1007/s10409-024-24262-x","DOIUrl":"10.1007/s10409-024-24262-x","url":null,"abstract":"<div><p>The increasing accumulation of space debris threatens the integrity and functionality of satellites and complicates orbital operations. This paper constructs an advanced rigid-flexible coupling dynamic model for tethered satellite systems, tailored to enhance space debris management. Utilizing the nodal position finite element method, the model significantly improves the precision of simulating tether dynamics and captures the complex interactions involving satellite and debris attitude dynamics. This advancement allows for detailed examination of potential tether entanglements and provides crucial data for optimizing deorbiting processes. To overcome the limitations of conventional control techniques, a robust adaptive sliding mode control strategy is developed. This approach is specifically designed to manage the unpredictable conditions of the low-Earth orbit and ensure precise satellite attitude control, critical for successful debris removal. Validated through extensive numerical simulations, our model and control strategy demonstrate substantial improvements in operational reliability and safety, significantly enhancing the success rate of deorbiting missions.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 2","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0