International Journal of Mechanical Sciences最新文献_第3页

Optimizing beveled diamond anvils via finite element analysis 基于有限元分析的斜钻砧优化

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-12 DOI: 10.1016/j.ijmecsci.2025.110602

Yusong Tian, Zhengping Su, Liangliang Chen, Yeqiang Bu, Hongtao Wang

{"title":"Optimizing beveled diamond anvils via finite element analysis","authors":"Yusong Tian, Zhengping Su, Liangliang Chen, Yeqiang Bu, Hongtao Wang","doi":"10.1016/j.ijmecsci.2025.110602","DOIUrl":"10.1016/j.ijmecsci.2025.110602","url":null,"abstract":"<div><div>Diamond anvil cell (DAC) is a pivotal tool in high-pressure research, enabling the exploration of material behaviors under extreme conditions. However, achieving pressures beyond the current limits necessitates optimizing the geometric configuration of diamond anvil. To address this challenge, we developed a fourth-order strain energy function to capture the anisotropic, nonlinear, and large elastic deformations of diamond during DAC operation. In addition, an elastic instability criterion at finite strain was incorporated to identify the critical configuration of diamond anvils at the onset of defect nucleation. Based on this novel computational framework, finite element analysis (FEA) was conducted to evaluate how culet diameter, friction coefficient, bevel angle, and bevel diameter influence the performance of diamond anvils. An empirical equation was subsequently derived to quantitatively link the mechanical performance to the geometric configuration of beveled diamond anvils. The developed framework enables reliable simulation and prediction of diamond anvil performance, particularly for anvils with culet sizes around 20 μm, a critical yet experimentally challenging regime often regarded as key to surpassing current pressure limits. This work not only advances the fundamental understanding of diamond anvil mechanics but also provides a robust tool to guide the design of next-generation DAC configurations for ultra-high-pressure experiments.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110602"},"PeriodicalIF":7.1,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Uncertainty analysis of acceleration and velocity fields measured via DIC DIC测量的加速度和速度场的不确定性分析

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-12 DOI: 10.1016/j.ijmecsci.2025.110599

Dennis Miller , Karan Shah , Subramani Sockalingam , Michael A. Sutton , Frank D. Thomas , Karan Kodagali

{"title":"Uncertainty analysis of acceleration and velocity fields measured via DIC","authors":"Dennis Miller , Karan Shah , Subramani Sockalingam , Michael A. Sutton , Frank D. Thomas , Karan Kodagali","doi":"10.1016/j.ijmecsci.2025.110599","DOIUrl":"10.1016/j.ijmecsci.2025.110599","url":null,"abstract":"<div><div>Digital image correlation is used to obtain full-field displacement measurements in a variety of applications. Since DIC measurements are obtained by comparing digital reconstructions of images captured during an experiment, noise in digital image data will introduce error in the displacement measurements which then propagate into derived field quantities such as displacement gradients, strains, velocity, and acceleration. The propagation of displacement error into velocities and accelerations is of significance in high-rate loading experiments such as direct impact or split Hopkinson pressure bar tests where accurate pointwise velocity and acceleration measurements are important, especially during the early transient stages of loading. While numerous studies have focused on quantifying displacement uncertainty in DIC, displacement uncertainty propagation into the derived velocity and acceleration fields has not been well explored. Employing well-known first and second order differentiation formulae with DIC-measured displacements to determine pointwise velocity and acceleration metrics, the enclosed study presents an error analysis and uncertainty quantification for these field quantities as a function of displacement noise and camera frame rate. When using central difference algorithms, theoretical analysis indicates that (a) uncertainty in acceleration is directly proportional to the product of frame rate squared and standard deviation in displacement and (b) uncertainty in velocity is directly proportional to the product of frame rate and standard deviation in displacement. The uncertainty analysis noted above is supported by results obtained for (a) numerical rigid body translation experiments and (b) a series of both static and wave-induced quasi-rigid motion dynamic experiments where images are obtained using a high-speed camera at frame rates from 100,000 to 5 million frames per second.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110599"},"PeriodicalIF":7.1,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Machine Learning Accelerates Programmable Mechanics in Isotropic Diamond Plate Lattices 机器学习加速各向同性金刚石板晶格的可编程力学

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-11 DOI: 10.1016/j.ijmecsci.2025.110595

Dongquan Wu, Zhenyi Xu, Dizhi Guo

{"title":"Machine Learning Accelerates Programmable Mechanics in Isotropic Diamond Plate Lattices","authors":"Dongquan Wu, Zhenyi Xu, Dizhi Guo","doi":"10.1016/j.ijmecsci.2025.110595","DOIUrl":"10.1016/j.ijmecsci.2025.110595","url":null,"abstract":"<div><div>This study presents a cascaded, integrated machine-learning framework for the rapid design and optimization of fully isotropic, diamond-inspired composite plate-lattice metamaterials (DMSCs), extendable to any composite architecture. An artificial neural network (ANN) trained on finite-element simulation data quickly screens large design spaces for isotropy, achieving a roughly 10<sup>5</sup>-fold speed-up in candidate identification compared to conventional methods. The ANN-driven screening identifies 483 perfectly isotropic configurations, which are then used to train a Bayesian-optimized XGBoost regression surrogate to accurately predict three static mechanical metrics. Coupling these surrogates with the Non-Dominated Sorting Genetic Algorithm II (NSGA-II) yields 209 Pareto-optimal plate-lattice designs that balance stiffness, plateau stress, and energy absorption. The top design (unit-cell width: 11.3 mm; wall thickness: 1.19 mm; scaling factor α = 0.77) was validated by high-fidelity finite-element simulations, with all predicted metrics deviating by less than 4%. Our analysis reveals that the composition scaling factor α influences mechanical performance over three times more than relative density, overturning the traditional density-centric design paradigm. Additionally, our method extends the viable fully isotropic relative density range by approximately 17%, providing a robust foundation for developing ultralight, high-strength metamaterials for demanding aerospace and defense applications.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110595"},"PeriodicalIF":7.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

X-Stewart mechanism for vibration isolation with nonlinear translational-to-rotational motion properties 具有非线性平移-旋转运动特性的X-Stewart隔振机构

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-11 DOI: 10.1016/j.ijmecsci.2025.110596

Xuefeng Li, Pengyuan Zhao, Xingjian Jing

{"title":"X-Stewart mechanism for vibration isolation with nonlinear translational-to-rotational motion properties","authors":"Xuefeng Li, Pengyuan Zhao, Xingjian Jing","doi":"10.1016/j.ijmecsci.2025.110596","DOIUrl":"10.1016/j.ijmecsci.2025.110596","url":null,"abstract":"<div><div>A novel X-Stewart mechanism is proposed and studied as an advanced passive vibration isolation system, featured by a compact semi-X-unit (SXU), which can be regarded as a half variant of the one unit of the X-shaped structure but retains the main nonlinear stiffness properties of a full X-shaped counterpart, together with an ample loading capacity, adjustable mechanic properties in a large range, and a special nonlinear rotational inertia mechanism, thus completely different from a traditional Stewart platform. The SXU is a specially designed compact component in this structure for taking advantage of the adjustable and controllable nonlinear properties of the X-mechanism method, and 3 SXUs form an X-Stewart platform. Theoretical analysis, comparisons and experimental validation indicate that the SXU can demonstrate diverse nonlinear properties for nonlinear manipulation, and the resulting X-Stewart has several unique nonlinear static and dynamic properties demonstrated in its enlarged quasi-zero stiffness (QZS) areas with high loading capacity and its capability for achieving different nonlinear stiffness, damping, and inertia in vibration isolation resulting lower resonant frequency, higher nonlinear damping effect, and sharp decay ratio. The nonlinear translational-to-rotational transform shows another unique feature of the X-Stewart which can have great application potentials. Therefore, the X-Stewart is completely different from other Stewart-type platforms and it can be applied as a basic unit to construct more complex structures of diverse functions for nonlinear manipulation in various engineering systems.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"303 ","pages":"Article 110596"},"PeriodicalIF":7.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Prediction of milling tool edge honing in abrasive jet machining 磨料射流加工中铣刀刃口珩磨的预测

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-11 DOI: 10.1016/j.ijmecsci.2025.110597

Jian Weng , Yan Yang , Kejia Zhuang , Suet To , Wai Sze Yip

{"title":"Prediction of milling tool edge honing in abrasive jet machining","authors":"Jian Weng , Yan Yang , Kejia Zhuang , Suet To , Wai Sze Yip","doi":"10.1016/j.ijmecsci.2025.110597","DOIUrl":"10.1016/j.ijmecsci.2025.110597","url":null,"abstract":"<div><div>Edge honing is crucial in cutting tool production to enhance performance by removing micro defects and creating a honed edge profile. Wet abrasive jet machining (WAJM) is a popular method for edge honing, though challenging to observe due to the high abrasive impact speeds and small deformation areas. This study proposes a novel hybrid model to predict the WAJM-based edge honing process, revealing the relationship between WAJM parameters and the honed edge geometry of milling tools. The model begins from the non-uniform-distribution modeling of particle velocity and density using computational fluid dynamics (CFD). The material removal process for a single abrasive impacting a flat surface is calculated based on Hertz contact and kinetic energy theorem, and further refined to determine the material removal volume on a topographic surface by considering particle-surface contact points. By integrating CFD simulation results with an analytical model, the dynamic edge honing process is predicted using the Monte Carlo method. The model successfully simulates the transition from a sharp tool tip to a relatively rounded edge without predefined edge geometry. WAJM experiments on milling tools indicate excellent model performance, with a maximum Euclidean distance between predicted and measured curves of <1 µm. Additionally, the average prediction errors for edge segments on the rake face and flank face are 8% and 12.3%, respectively. The study thoroughly discusses the effects of nozzle pressure and traverse speed on edge geometry, providing valuable guidance for the cutting tool production.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110597"},"PeriodicalIF":7.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

SFEM-4DP: A strain-based finite element model for 4D printing smem - 4dp：一种基于应变的4D打印有限元模型

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-11 DOI: 10.1016/j.ijmecsci.2025.110497

Zaiyang Liu , Zhe Qiu , Yang Tian , Shugen Ma , Hidemitsu Furukawa , Shinichi Hirai , Zhongkui Wang

{"title":"SFEM-4DP: A strain-based finite element model for 4D printing","authors":"Zaiyang Liu , Zhe Qiu , Yang Tian , Shugen Ma , Hidemitsu Furukawa , Shinichi Hirai , Zhongkui Wang","doi":"10.1016/j.ijmecsci.2025.110497","DOIUrl":"10.1016/j.ijmecsci.2025.110497","url":null,"abstract":"<div><div>Four-dimensional (4D) printing extends three-dimensional (3D) printing by adding a time-based dimension, allowing printed structures to change and adapt over time. This smart behavior is built into smart materials during printing and activated by external stimuli. Unlike 3D-printed static structures, 4D-printed structures evolve, offering dynamic functionality for various applications. This study opens up new avenues for efficient modeling of 4D-printed structures by introducing a Strain-based Finite Element Model for 4D Printing (SFEM-4DP) that predicts time-dependent deformation behavior. By incorporating viscoelastic effects and nonlinear Green strain formulation, the proposed model captures large deformations while simplifying the modeling process and reducing the need for extensive parameter identification. A simulation tool is developed to implement the model and facilitate practical 4D printing predictions. Several numerical simulation cases are used to demonstrate the model’s flexibility and efficiency. The experimental verification include hydrogel doughnuts and bilayer composites of thermoplastic polyurethane (TPU) and hydrogel, demonstrating the model’s capability of dynamic deformation prediction. Finally, two application cases of soft robotics-a transformable wheel and a soft gripper-are demonstrated based on the bilayer composites.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110497"},"PeriodicalIF":7.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Machining residual stress model with shear zones defined as Eulerian boundaries 以欧拉边界定义剪切区的加工残余应力模型

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-11 DOI: 10.1016/j.ijmecsci.2025.110592

Zheng-Yan Yang, Dong Zhang, Xiao-Ming Zhang, Xiao-Chen Liu, Han Ding

{"title":"Machining residual stress model with shear zones defined as Eulerian boundaries","authors":"Zheng-Yan Yang, Dong Zhang, Xiao-Ming Zhang, Xiao-Chen Liu, Han Ding","doi":"10.1016/j.ijmecsci.2025.110592","DOIUrl":"10.1016/j.ijmecsci.2025.110592","url":null,"abstract":"<div><div>The increasing demand for the optimisation and control of machining-induced residual stress necessitates an efficient and accurate method for predicting the cutting residual stress. To address this, we propose a novel hybrid model based on the Arbitrary Lagrangian-Eulerian technique. The model simulates cutting-induced residual stress in both two-dimensional and three-dimensional conditions. It treats the primary and tertiary shear zones as Eulerian boundaries, allowing the application of thermos-mechanical loads in these regions and enabling the simulation of material removal without modelling chip formation. This reduces simulation time by over 90 %. The final residual stress is computed from the subsurface plastic strain using eigenstrain theory, thereby eliminating the need to simulate the release or cooling process. Experimental measurements are also incorporated to determine the equivalent thermo-mechanical loadings, further improving model accuracy. By comparing this novel hybrid method with traditional numerical models and experimental data, we demonstrate its superiority in terms of efficiency and accuracy. Notably, uncut chip thickness has little effect on cutting-edge squeezing. Instead, it primarily influences residual stress through changes in primary shear zone loading.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110592"},"PeriodicalIF":7.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Modeling, analytical solutions and experiment of a mechanical-transmission type energy harvester 一种机械传动式能量采集器的建模、解析解和实验

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-11 DOI: 10.1016/j.ijmecsci.2025.110594

Shuzhe Zhou , Huirong Zhang , Jiaqin Zhang , Bin Zhang , Shengxi Zhou

{"title":"Modeling, analytical solutions and experiment of a mechanical-transmission type energy harvester","authors":"Shuzhe Zhou , Huirong Zhang , Jiaqin Zhang , Bin Zhang , Shengxi Zhou","doi":"10.1016/j.ijmecsci.2025.110594","DOIUrl":"10.1016/j.ijmecsci.2025.110594","url":null,"abstract":"<div><div>In metro rail transit, wireless sensor networks play a vital role in monitoring. With the increasing application of the steel-spring floating slab track (SFST), harvesting track vibration energy to power underground wireless sensors has emerged as an innovative and eco-friendly solution. In this paper, a practical mechanical-transmission type energy harvester employing a helical multi-stage structure (MEHHM) is designed for the SFST. A comprehensive theoretical model with mechanical parameters considered is established under harmonic excitation as well as within the vehicle-SFST-MEHHM coupled system. A reconstructed harmonic balance (RHB) method assisted by the two-point tracking method is employed to solve the semi-analytical periodic responses of the transmission, enabling an efficient tracing of solution curves. Results show that the mechanical parameters have obvious influence on the dynamic responses, output performance and transmission stability of the MEHHM. Experimental results show a good agreement with the simulation. Under the harmonic displacement excitation of 4 mm and 2 Hz, the average output power can reach a high level of 33.73 W. Under the floating slab displacement excitation at 60 km/h train speed, application tests are conducted to verify the MEHHM’s output capacity. Overall, our work advances the theoretical modeling and analysis of energy harvesting for SFSTs, offering new insights into the research framework for rail transit energy harvesting.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110594"},"PeriodicalIF":7.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Broadband wide-width acoustic topological waveguides with intermittent coupling 间歇耦合的宽带宽频宽声学拓扑波导

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-10 DOI: 10.1016/j.ijmecsci.2025.110591

Shiqi Tong , Jiawen Xu , Dawei Xia , Hui Wang , Geng Chen , Ruqiang Yan , Aiguo Song

{"title":"Broadband wide-width acoustic topological waveguides with intermittent coupling","authors":"Shiqi Tong , Jiawen Xu , Dawei Xia , Hui Wang , Geng Chen , Ruqiang Yan , Aiguo Song","doi":"10.1016/j.ijmecsci.2025.110591","DOIUrl":"10.1016/j.ijmecsci.2025.110591","url":null,"abstract":"<div><div>Acoustic topological insulators (ATIs) are of great use in the reliable information transmission and processing owing to their exceptional wave modulation characteristics, such as effective backscatter suppression and defect immunity. However, energy in a topological waveguide is typically confined to a narrow region, restricting its potential for efficient energy transmission and integration with bulk devices. Moreover, the existing ATI-based waveguides with adjustable widths have narrow operating bands. Here, an acoustic topological heterostructure is proposed, supporting topological waveguides with broad bandwidths and adjustable mode widths. This heterostructure realizes intermittent coupling waveguides by alternately arranging phononic crystals with different topological properties. It not only possesses the inherent excellent robustness of topological states, but also resolves the previous trade-off between mode width and operational bandwidth. The developed heterostructure offers a pathway for designing broadband topology devices for large-scale acoustic transmission, and its mode width freedom is conducive to integration into the acoustic system. This work provides new insights into various practical applications of ATIs in multifunctional information processing, computing, and communications.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110591"},"PeriodicalIF":7.1,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Semi-analytical modeling and dynamic characteristic analysis of rotational drum-blade-disk system 旋转鼓-叶片-盘系统半解析建模及动态特性分析

IF 7.1 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-07-10 DOI: 10.1016/j.ijmecsci.2025.110588

Hui Ma , Hong Guan , Shiyu Liu , Sainan Zhou , Xumin Guo , Qinqin Mu , Yao Zeng , Yanyan Chen

{"title":"Semi-analytical modeling and dynamic characteristic analysis of rotational drum-blade-disk system","authors":"Hui Ma , Hong Guan , Shiyu Liu , Sainan Zhou , Xumin Guo , Qinqin Mu , Yao Zeng , Yanyan Chen","doi":"10.1016/j.ijmecsci.2025.110588","DOIUrl":"10.1016/j.ijmecsci.2025.110588","url":null,"abstract":"<div><div>The coupled drum-blade-disk system (DBDS) is a representative structural component in aero-engines. The system can be characterized by complicated dynamic behavior due to interactions among flexible components. This study proposes a novel semi-analytical model that simultaneously considers the flexibility of the drum, disk, and blades, as well as key rotational effects including centrifugal stiffening, spin softening, and Coriolis forces. Unlike existing models that rely heavily on finite element analysis or simplify component interactions, the proposed model provides a compact yet accurate formulation by combining Hamilton’s principle with the Galerkin method. The proposed model is validated through comparison with results of the natural frequencies and mode shapes from the literature, modal test experiments, and ANSYS simulations. The results indicate that the proposed semi-analytical model of DBDS has high numerical calculation accuracy on natural characteristics and dynamic responses. Numerical analyses further reveal the influence of drum length and radius on the natural frequencies of the system. This work offers an efficient and physically insightful tool for vibration prediction and parameter design in complex rotating structures, with potential benefits for improving aero-engine reliability and design optimization.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"302 ","pages":"Article 110588"},"PeriodicalIF":7.1,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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