Acta Mechanica Sinica最新文献_第3页

Tactile-FPiH: a tactile-based peg-in-hole strategy for flexible pegs tactical - fpih：一种基于触觉的柔性钉孔策略

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25663-x

Zhantao Xu (, ), Changle Li (, ), Zhe Gao (, ), Yihan Shan (, ), Xuehe Zhang (, ), Chong Yao (, ), Jie Zhao (, )

{"title":"Tactile-FPiH: a tactile-based peg-in-hole strategy for flexible pegs","authors":"Zhantao Xu \u0000 (, ), Changle Li \u0000 (, ), Zhe Gao \u0000 (, ), Yihan Shan \u0000 (, ), Xuehe Zhang \u0000 (, ), Chong Yao \u0000 (, ), Jie Zhao \u0000 (, )","doi":"10.1007/s10409-025-25663-x","DOIUrl":"10.1007/s10409-025-25663-x","url":null,"abstract":"<div><p>Flexible objects exhibit deformability and high flexibility. Traditional strategies for manipulating rigid objects are often inapplicable, presenting a challenge for robot autonomy. This research aims to enable precise manipulation of flexible objects by robots, using a peg-in-hole (PiH) task as a case study. The focus of this paper is on the flexible slender peg made of soft material with high elasticity. Its unpredictable deformation under external forces makes traditional PiH strategies ineffective. Additionally, the deformation of a low-hardness flexible peg is difficult to detect with conventional wrist-mounted F/T sensors. Hence, we propose a tactile-based PiH strategy for flexible pegs (tactile-FPiH) that exhibits robustness to the material mechanical properties of different flexible objects. We employ a low-cost taxel-based tactile sensor capable of detecting the distribution of normal force. The deformation can cause a deflection of the peg in the gripper, leading to variations in the tactile signals. Leveraging this property, we design a specialized search strategy and develop a controller trained through reinforcement learning for alignment and insertion, while also implementing preventive measures to address potential peg-hole jamming issues. The results show that our approach can achieve a high task success rate with flexible pegs of three hardness levels.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829554","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

Effects of surface strengthening and temperature on fatigue behaviors of a CSS-42L gear steel: crack initiation and fatigue strength model 表面强化和温度对CSS-42L齿轮钢疲劳行为的影响：裂纹萌生和疲劳强度模型

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25456-x

Jiajun Liu (, ), Fuping Yuan (, ), Shao-Shi Rui (, ), Wenquan Cao (, ), Chengqi Sun (, )

{"title":"Effects of surface strengthening and temperature on fatigue behaviors of a CSS-42L gear steel: crack initiation and fatigue strength model","authors":"Jiajun Liu \u0000 (, ), Fuping Yuan \u0000 (, ), Shao-Shi Rui \u0000 (, ), Wenquan Cao \u0000 (, ), Chengqi Sun \u0000 (, )","doi":"10.1007/s10409-025-25456-x","DOIUrl":"10.1007/s10409-025-25456-x","url":null,"abstract":"<div><p>In this paper, the effects of surface strengthening on high cycle and very high cycle fatigue behaviors of a CSS-42L gear steel are investigated by four-point bending and rotating bending fatigue tests. The results show that the S-N curve of the base material shows a plateau zone, while the S-N curves of surface carburizing and surface carbonitriding materials exhibit a continuous downward trend. The surface strengthening significantly increases the fatigue performance of a CSS-42L gear steel, and the high temperature reduces the fatigue performance for both the base and surface-strengthened materials. Scanning electron microscope observation indicates that, unlike the base material, there is a circular optical dark area around the crack origin for surface strengthening material. The carbide is found in the fatigue fracture surface of the surface-carburizing material, which is beneficial to suppress the crack extension. Finally, a fatigue life model is proposed based on the correlation between hardness and fatigue strength, which takes into account the influence of the surface carburization layer. The predicted fatigue life is in good agreement with experimental data.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829717","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

Morphology and size of Janus droplet controlled by flow conditions 流动条件对Janus液滴形貌和大小的影响

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25808-x

Yan Pang (, ), Yumian Liu (, ), Jiahe Ru (, ), Zhaomiao Liu (, ), Xiang Wang (, ), Jie Feng (, )

{"title":"Morphology and size of Janus droplet controlled by flow conditions","authors":"Yan Pang \u0000 (, ), Yumian Liu \u0000 (, ), Jiahe Ru \u0000 (, ), Zhaomiao Liu \u0000 (, ), Xiang Wang \u0000 (, ), Jie Feng \u0000 (, )","doi":"10.1007/s10409-025-25808-x","DOIUrl":"10.1007/s10409-025-25808-x","url":null,"abstract":"<div><p>This study experimentally investigates the generation of Janus droplets under varying physical properties and flow conditions using three layers of nested glass capillary microchannels. Based on the interfacial morphology of the droplets, the flow modes of two distinct Janus droplets (partial engulfing and snowman) are analyzed. It is found that when the two dispersed phases flow in parallel at the front of the collection tube, the flow modes of each phase are governed by dimensionless numbers of the dispersed phase Weber number and the local capillary number of the continuous phase. The dimensionless numbers corresponding to these flow modes are similar to single emulsion. Additionally, for these two distinct Janus droplet morphologies, the morphological regulation laws governed by the flow conditions are obtained. By extending the volume prediction model for single emulsion, a volume prediction model for partial engulfing Janus droplets under dripping mode is established, yielding favorable agreement with experimental results.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829556","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

High-temperature dynamic tensile properties of CrMnFeCoNi high-entropy alloy measured with the synchronous assembly ESHTB technique 采用同步装配ESHTB技术测量了CrMnFeCoNi高熵合金的高温动态拉伸性能

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25595-x

Haoyang Li (, ), Liqiang Gao (, ), Yuan Gao (, ), Yan Liu (, ), Xiang Guo (, ), Yulong Li (, ), Qifeng Yu (, )

{"title":"High-temperature dynamic tensile properties of CrMnFeCoNi high-entropy alloy measured with the synchronous assembly ESHTB technique","authors":"Haoyang Li \u0000 (, ), Liqiang Gao \u0000 (, ), Yuan Gao \u0000 (, ), Yan Liu \u0000 (, ), Xiang Guo \u0000 (, ), Yulong Li \u0000 (, ), Qifeng Yu \u0000 (, )","doi":"10.1007/s10409-025-25595-x","DOIUrl":"10.1007/s10409-025-25595-x","url":null,"abstract":"<div><p>This study investigated the dynamic tensile mechanical behavior of he CrMnFeCoNi high-entropy alloy (HEA) at elevated temperatures. An assembly system was constructed based on the electromagnetic split Hopkinson tensile bar (ESHTB) to achieve synchronous high-temperature dynamic tensile loading, ensuring the accuracy and reliability of the test data. High-temperature quasi-static tensile tests were also conducted for comparison. Additionally, an optimized specimen suitable for high-temperature dynamic tensile loading was designed, and finite element methods confirmed that the specimen met the loading requirements. The test results show that the synchronous assembly system can ensure that the cold contact time of the specimen is within 114 ms, significantly reducing the temperature rise at the rod end. In addition, the CrMnFeCoNi HEA exhibits significant strain hardening, strain rate strengthening, and thermal softening effects under dynamic high-temperature tensile loading. Whether under quasi-static or dynamic loading, as the temperature rises, the alloy shows a tendency to shift from ductile to brittle fracture. In the temperature range of 20 to 400 °C, the cooperative deformation of dislocations and twins is the primary deformation mechanism. As the temperature increases, the dynamic recovery (DRV) mechanism is enhanced, leading to a decrease in flow stress. At 800 °C, due to limitations of the critical recrystallization temperature and high strain rate, dynamic recrystallization is suppressed, and DRV remains the predominant deformation mechanism.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829565","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

Mechanical modeling and analysis of millimeter-scale rigid-flexible coupled folding-mechanisms 毫米尺度刚柔耦合折叠机构的力学建模与分析

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25345-x

Junji Pu (, ), Yulie Wu (, ), Canhui Yin (, ), Chunyan Qu (, ), Dingbang Xiao (, ), Xuezhong Wu (, )

{"title":"Mechanical modeling and analysis of millimeter-scale rigid-flexible coupled folding-mechanisms","authors":"Junji Pu \u0000 (, ), Yulie Wu \u0000 (, ), Canhui Yin \u0000 (, ), Chunyan Qu \u0000 (, ), Dingbang Xiao \u0000 (, ), Xuezhong Wu \u0000 (, )","doi":"10.1007/s10409-025-25345-x","DOIUrl":"10.1007/s10409-025-25345-x","url":null,"abstract":"<div><p>The folding mechanisms fabricated from rigid-flexible composite materials demonstrate remarkable advantages in terms of lightweight design, miniaturized dimensions, and simplified assembly procedures, making them highly promising for micro robots. Nevertheless, the distinctive thin-film composite architecture of these mechanisms presents considerable modeling difficulties when employing conventional analytical approaches for either rigid-body or compliant mechanisms. To overcome these challenges, a segmented equivalent rigid-flexible coupled model is developed, incorporating the unique material and joint characteristics of folding structures. This model facilitates kinematic and dynamic analyses, ultimately providing an accurate theoretical framework for mechanism optimization and motion control. A five-link micro-rotational stage fabricated via a folding process serves as a representative case to validate the correctness of the model through combining theoretical modeling, numerical simulations, and experimental characterization. The results demonstrate that the model effectively quantifies critical performance metrics, including motion range, actuation force, and operating modals. This theoretical paradigm presents a dual contribution to the analysis of millimeter-scale rigid-flexible coupled folding (mRFCF) mechanisms: it not only addresses the computational challenges intrinsic to nonlinear mechanics, but also establishes a comparative reference through the simulation environment and testing experiments, providing reliable validation for the model in evaluating the mechanical and motion characteristics of these mRFCF mechanisms.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829636","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

Thermo-strength criterion of graphene via bond energy analysis 基于键能分析的石墨烯热强度判据

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25602-x

Miduo Yu (, ), Guoqiang Zhang (, ), Huasong Qin (, ), Yilun Liu (, )

{"title":"Thermo-strength criterion of graphene via bond energy analysis","authors":"Miduo Yu \u0000 (, ), Guoqiang Zhang \u0000 (, ), Huasong Qin \u0000 (, ), Yilun Liu \u0000 (, )","doi":"10.1007/s10409-025-25602-x","DOIUrl":"10.1007/s10409-025-25602-x","url":null,"abstract":"<div><p>Thermo-strength, the load capability of materials under elevated temperatures, is a critical metric for evaluating structural integrity in harsh environments. Temperature has a broad effect on the strength of two-dimensional (2D) materials, and the potential mechanisms can be attributed to the thermally activated bond fracture, thermal fluctuations, and thermal-driven defect evolution. Up to now, a general thermo-strength criterion of graphene with vast types of defects and loading states still remains challenging. In this work, we find that the critical bond energy, defined as the potential energy of the fracture bond at the fracture point, is invariant despite the diverse fracture modes for different types of defects under different temperatures and loading states. While initial bond energy without external loading is dependent on the local environment (residual stress caused by defects) and temperature. Then, the energy difference between the critical bond energy and the initial bond energy exhibits a linear decay with temperature. By quantifying the energy balance between the work exerted by the external load on the fracture bond and bond energy difference, a unified thermo-strength criterion is developed that can accurately capture the temperature-related strength of graphene with different types of defects and loading states. This work offers a new insight into the thermo-strength criterion of 2D materials through a fundamental chemical bond energy-based framework.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829720","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

Adaptive Kriging-assisted single loop approach for reliability-based design optimization via inverse dimension reduction method 基于逆降维法的自适应kriging辅助单环可靠性设计优化方法

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25614-x

Nan Ye (, ), Shaoqiang Bai (, ), Dequan Zhang (, ), Meide Yang (, ), Fang Wang (, )

{"title":"Adaptive Kriging-assisted single loop approach for reliability-based design optimization via inverse dimension reduction method","authors":"Nan Ye \u0000 (, ), Shaoqiang Bai \u0000 (, ), Dequan Zhang \u0000 (, ), Meide Yang \u0000 (, ), Fang Wang \u0000 (, )","doi":"10.1007/s10409-025-25614-x","DOIUrl":"10.1007/s10409-025-25614-x","url":null,"abstract":"<div><p>The low computational efficiency of Kriging-assisted reliability-based design optimization (RBDO) has long been a challenging problem hindering its general application to engineering design problems. To address this gap, this study develops an adaptive Kriging-assisted single-loop approach (AK-SLA) to improve the efficiency of computation. To begin with, the Kriging model is updated by using the approximate minimum performance target point (MPTP) from the last iteration of Kriging-assisted SLA. Since the approximate MPTP directly obtained from the Kriging-assisted SLA tends to be inaccurate due to poor fitting of highly nonlinear constraints, a dimension reduction-based inverse reliability analysis method is employed to yield a more accurate MPTP on the basis of the established Kriging model in the previous iteration. To automatically select approximate MPTPs or more accurate MPTPs to update the Kriging models during the iteration process, an adaptive strategy in terms of the error of the Kriging model and combining the Kriging model with the Karush-Kuhn-Tucker optimality condition is constructed. Finally, the viability of the proposed AK-SLA is verified through two numerical examples and an engineering problem. The results demonstrate that the proposed AK-SLA exhibits satisfactorily high computational efficiency to solve complex RBDO problems with implicit constraints.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829555","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

A quantum lattice Boltzmann method for solving the Navier-Stokes systems with a linearized non-equilibrium collision operator and modular circuit 求解具有线性化非平衡碰撞算子和模块电路的Navier-Stokes系统的量子点阵Boltzmann方法

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25741-x

Kang-Yang Zeng (, ), Zhao-Dong Wei (, ), Xiao-Dong Niu (, ), Adnan Khan, De-Cai Li (, ), Hiroshi Yamaguchi

{"title":"A quantum lattice Boltzmann method for solving the Navier-Stokes systems with a linearized non-equilibrium collision operator and modular circuit","authors":"Kang-Yang Zeng \u0000 (, ), Zhao-Dong Wei \u0000 (, ), Xiao-Dong Niu \u0000 (, ), Adnan Khan, De-Cai Li \u0000 (, ), Hiroshi Yamaguchi","doi":"10.1007/s10409-025-25741-x","DOIUrl":"10.1007/s10409-025-25741-x","url":null,"abstract":"<div><p>This paper introduces a quantum lattice Boltzmann method for simulating complex flows. The proposed quantum scheme effectively overcomes the mismatch between the nonlinear collision in the standard lattice Boltzmann method (LBM) and the linear quantum computing (QC) through a linearized non-equilibrium collision operator, and is successfully extended to the Navier-Stokes systems by designing a modular circuit for density and velocity calculations. Most importantly, the present approach ensures the unitary of quantum algorithms while keeping the collision relaxation parameter adjustable for simulating flows with different Reynolds numbers. The accuracy and practicality of the proposed method are demonstrated by simulating two typical flows, including lid-driven and natural convection flows in a square cavity at different Reynolds and Rayleigh numbers, respectively. This work offers a practical application of QC-based LBM for complex fluid dynamics problems.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 6","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829364","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

Effects of different rheological models on the incompressible flow of complex fluid through a circular pipe with sudden expansion 不同流变模型对复杂流体在突然膨胀圆管内不可压缩流动的影响

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25473-x

Yongcang Ren (, ), Shaobo Feng (, ), Junhui Wei (, ), Bao Zhang (, ), Jun’an Lu (, ), Zhixiong Tu (, ), Nu Zeng (, ), Hongtao Jing (, ), Yantao Yang (, )

{"title":"Effects of different rheological models on the incompressible flow of complex fluid through a circular pipe with sudden expansion","authors":"Yongcang Ren \u0000 (, ), Shaobo Feng \u0000 (, ), Junhui Wei \u0000 (, ), Bao Zhang \u0000 (, ), Jun’an Lu \u0000 (, ), Zhixiong Tu \u0000 (, ), Nu Zeng \u0000 (, ), Hongtao Jing \u0000 (, ), Yantao Yang \u0000 (, )","doi":"10.1007/s10409-025-25473-x","DOIUrl":"10.1007/s10409-025-25473-x","url":null,"abstract":"<div><p>The incompressible flows in a circular pipe with sudden expansion are numerically investigated in the laminar regime for both the Newtonian fluid and the non-Newtonian Herschel-Bulkley (HB) fluid, with the emphases on the difference caused by different rheological models. The Reynolds number, which is defined by the mean inlet velocity, inlet diameter, and viscosity of Newtonian model, ranges from 50 to 500. For uniform axial flow, steady and axisymmetric annular recirculation region develops after the expansion with the length increasing linearly with Reynolds number. The HB flow generates shorter recirculation region than the Newtonian flow. When a swirling flow is introduced at inlet, the axisymmetric flow breaks into helical flow with multiple vortices when the strength of swirling is large enough. The transition happens at weaker swirling for the Newtonian fluid than the HB fluid. The helical flow experiences the subcritical transition to a bubble shape structure when a azimuthally asymmetric mode with large enough amplitude is added to the inlet swirling flow for both fluid models. For all cases, the total pressure drop between the inlet and outlet is larger for the HB flow than the Newtonian flow under the same conditions.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829135","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

A hybrid framework integrating classical computers and quantum annealers for optimisation of truss structures 集成经典计算机和量子退火的桁架结构优化混合框架

IF 4.6 2区工程技术

Acta Mechanica Sinica Pub Date : 2026-05-05 DOI: 10.1007/s10409-025-25157-x

Van-Dung Nguyen, Erin Kuci, Michel Rasquin, Ludovic Noels

{"title":"A hybrid framework integrating classical computers and quantum annealers for optimisation of truss structures","authors":"Van-Dung Nguyen, Erin Kuci, Michel Rasquin, Ludovic Noels","doi":"10.1007/s10409-025-25157-x","DOIUrl":"10.1007/s10409-025-25157-x","url":null,"abstract":"<div><p>This work proposes a hybrid framework combining classical computers with quantum annealers for structural optimisation. At each optimisation iteration of an iterative process, two minimisation problems are formulated, one for the underlying mechanical boundary value problem through the minimisation of the potential energy principle and one to update the design variables. Our hybrid approach leverages the strength of quantum computing to solve these two minimisation problems at each step, thanks to the developed quantum annealing-assisted sequential programming strategy introduced in our previous research. The applicability of the proposed framework is demonstrated through several case studies of truss optimisation, highlighting its capability to perform optimisation with quantum computers. This framework offers a promising direction for future structural optimisation applications, particularly in scenarios where the quantum computer could resolve the size limitations of classical computers due to problem complexities.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 6","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829365","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