Journal of Sound and Vibration最新文献

英文中文

Multirotor noise control using synchrophasing under nonstationary conditions 非平稳条件下多转子同步噪声控制

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-05-12 Epub Date: 2026-01-23 DOI: 10.1016/j.jsv.2026.119673

Vítor T. Valente, Eric Greenwood, Eric N. Johnson

The growing presence of unmanned aerial vehicles (UAVs) in urban areas has raised increasing concern about their noise emissions. Although UAVs hold promise for improving urban mobility, the noise generated by their propellers can be disruptive and remains a significant barrier to public acceptance. Previous studies showed that radiated noise in one or more directions of these vehicles can be reduced by synchronizing the phase relationships between multiple rotors on the aircraft. This paper expands the experimental analysis of this concept by focusing on nonstationary acoustic conditions while analyzing attenuation and amplification cases. These conditions include changing the target region location, changing the angular velocity set point, changing the target region location and velocity set point at the same time, and also generating torques. A small hexacopter mounted in an anechoic chamber is used for the experimental evaluation. Results suggest a difference of 12 dB can be achieved when comparing attenuation and amplification cases for the varying target location. Predictions show larger differences when analyzing only tonal components. When generating torques, experimental measurements suggest that even in a worst-case scenario, where motors are grouped into four distinct categories based on similar angular velocity set points, a noise reduction of approximately 3 dB to 4 dB can be achieved.

越来越多的无人驾驶飞行器（uav）出现在城市地区，引起了人们对其噪音排放的越来越多的关注。尽管无人机有望改善城市交通，但其螺旋桨产生的噪音可能具有破坏性，并且仍然是公众接受的重大障碍。先前的研究表明，这些飞行器的一个或多个方向的辐射噪声可以通过同步飞机上多个旋翼之间的相位关系来降低。本文在分析衰减和放大情况的同时，重点分析了非平稳声学条件，扩展了这一概念的实验分析。这些条件包括改变目标区域位置，改变角速度设定点，同时改变目标区域位置和速度设定点，并产生转矩。在消声室中使用小型六旋翼机进行实验评估。结果表明，在不同目标位置的衰减和放大情况下，可以实现12 dB的差异。当只分析音调成分时，预测显示出更大的差异。当产生扭矩时，实验测量表明，即使在最坏的情况下，电机根据相似的角速度设定值分为四个不同的类别，也可以实现大约3 dB到4 dB的降噪。

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引用次数: 0

Vibration analysis of planetary roller screw mechanism with time-varying mesh stiffness in non-circular gear engagement 非圆齿轮啮合时变啮合刚度行星滚子螺杆机构振动分析

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-05-12 Epub Date: 2026-01-16 DOI: 10.1016/j.jsv.2026.119665

Qianjin Xu , Shangjun Ma , Yao Zhang , Linping Wu , Maodong Niu , Kan Liu

The Planetary Roller Screw Mechanism (PRSM) enables high-precision power transmission via synchronized meshing of thread pairs and modified non-circular gear pairs. While the thread pairs maintain continuous contact, the non-circular gears exhibit periodic engagement-disengagement due to their helix-cut profiles. This inherent disparity in meshing mechanisms establishes the gear pair as the primary vibration excitation source. This study analytically resolves the time-varying mesh stiffness (TVMS) of non-circular gears and thread-pair contact stiffness to construct a multi-degree-of-freedom coupled dynamic model using lumped-parameter theory. The simulated vibration modes—classified as torsional, transverse, and roller modes—yield dynamic responses including displacement, velocity, and acceleration spectra for all components. Experimental validation confirms the model’s accuracy. The study found that the average TVMS of non-circular gears is 28 % lower than that of standard gears, and the internal ring gear is the vibration source of the PRSM system. The findings provide a quantifiable design basis for vibration control and condition monitoring in high-performance PRSM systems.

行星滚子螺杆机构（PRSM）通过同步啮合螺纹副和修改的非圆齿轮副实现高精度动力传输。当螺纹对保持连续接触时，非圆齿轮由于其螺旋形切削轮廓而表现出周期性的啮合-分离。啮合机构的这种固有差异使齿轮副成为主要的激振源。本文采用集总参数理论解析求解非圆齿轮时变啮合刚度和线副接触刚度，建立了多自由度耦合动力学模型。模拟的振动模式——分为扭转、横向和滚轴模式——产生了包括所有部件的位移、速度和加速度谱在内的动态响应。实验验证了模型的准确性。研究发现，非圆齿轮的平均TVMS比标准齿轮低28%，内环齿轮是PRSM系统的振动源。研究结果为高性能永磁同步电机系统的振动控制和状态监测提供了可量化的设计依据。

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引用次数: 0

Broadband high-amplitude pressure wave generation via tunable stepped acoustic resonator 通过可调谐阶跃声谐振器产生宽带高振幅压力波

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-05-12 Epub Date: 2026-02-04 DOI: 10.1016/j.jsv.2026.119693

Yanan Yu , Wen He , Jie Zhou , Suan Xu

An inverse design method of tunable stepped acoustic resonator is proposed for broadband high-amplitude pressure wave generation. The tunable stepped acoustic resonator incorporates the mechanically adjustable narrow tube and piston tube within the chambers of wide and narrow tubes to achieve tunable size parameters for getting appropriate resonance. A frequency equation for computing resonant frequency and an analytical model for computing resonance acoustic pressure are used as the objective functions. The constraints are determined according to the microphone calibration requirements and the correlation between resonant frequencies and size parameters of the stepped acoustic resonator. And then, the inverse design method is proposed to determine the different size parameters of tunable stepped acoustic resonator with optimal resonance acoustic field characteristics at various target calibration frequencies. According to the design results, a broadband high sound pressure generation device based on the tunable stepped acoustic resonator is established and a tuning scheme is presented. The performance tests of the broadband high sound pressure generation device are conducted. The experiment results suggest that the developed device can produce the pressure waveforms with high amplitude and low distortion over the frequency range of 250 Hz∼1000 Hz.

提出了一种用于宽带高振幅压力波产生的可调谐阶跃声谐振器的反设计方法。该可调阶式声谐振器在宽管腔和窄管腔内采用机械可调的窄管和活塞管，以实现可调的尺寸参数以获得适当的共振。用计算共振频率的频率方程和计算共振声压的解析模型作为目标函数。根据传声器标定要求和阶跃式谐振器谐振频率与尺寸参数的相关性确定约束条件。然后，提出了反设计方法，确定了在不同目标标定频率下具有最佳共振声场特性的可调谐阶跃式谐振器的不同尺寸参数。根据设计结果，建立了一种基于可调谐阶跃谐振器的宽带高声压产生装置，并给出了调谐方案。对宽带高声压产生装置进行了性能测试。实验结果表明，该装置可以在250 Hz ~ 1000 Hz的频率范围内产生高幅度、低失真的压力波形。

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引用次数: 0

FAME–SSA: A fast adaptive multivariate decomposition method for unsupervised damage detection in built infrastructures FAME-SSA：一种快速自适应多元分解方法，用于建筑基础设施的无监督损伤检测

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-05-12 Epub Date: 2026-02-05 DOI: 10.1016/j.jsv.2026.119676

Lakhadive Mehulkumar R , Anshu Sharma , Basuraj Bhowmik

Structural Health Monitoring (SHM) techniques are continuously challenged by the complexities and noise inherent in large-scale multidimensional data. Empirical Mode Decomposition (EMD) is effective for non-stationary signals but struggles with multichannel data. Multivariate EMD (MEMD) addresses this but still suffers from noise sensitivity, mode mixing, and incomplete frequency extraction. Fast and Adaptive Multivariate EMD (FA-MVEMD) improves on MEMD by using intelligent strategies to enhance accuracy and performance. This study introduces a novel methodology for modal identification and damage detection: Fast and Adaptive Multivariate Empirical Singular Spectrum Analysis (FAME-SSA). By combining the adaptive decomposition capability of FA-MVEMD with the trend extraction and noise separation strengths of Singular Spectrum Analysis (SSA), the proposed approach improves the accuracy and robustness of feature extraction from structural responses. A key innovation of FAME-SSA is the application of Hotelling’s T² and Squared Prediction Error (SPE) statistics for damage detection. The method is validated through extensive numerical simulations, experimental data from a wind turbine structure, and real-world SHM data from the Lysefjord Bridge. The results demonstrate that FAME-SSA outperforms conventional methods, making it a promising tool for real-time SHM in complex and noisy environments under challenging conditions.

结构健康监测（SHM）技术不断受到大规模多维数据的复杂性和噪声的挑战。经验模态分解（EMD）对非平稳信号是有效的，但对多通道数据却很困难。多元EMD （MEMD）解决了这个问题，但仍然存在噪声敏感性、模式混合和不完全频率提取的问题。快速和自适应多变量EMD （FA-MVEMD）通过采用智能策略来提高MEMD的精度和性能。本文介绍了一种新的模态识别和损伤检测方法：快速自适应多元经验奇异谱分析（FAME-SSA）。该方法将FA-MVEMD的自适应分解能力与奇异谱分析（SSA）的趋势提取和噪声分离能力相结合，提高了结构响应特征提取的准确性和鲁棒性。FAME-SSA的一个关键创新是将Hotelling的T²和平方预测误差（SPE）统计用于损伤检测。该方法通过大量的数值模拟、风力涡轮机结构的实验数据以及Lysefjord大桥的实际SHM数据进行了验证。结果表明，FAME-SSA优于传统方法，使其成为在复杂和嘈杂环境下具有挑战性的实时SHM工具。

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引用次数: 0

Panel flutter suppression via combined-nonlinear acoustic black hole 组合非线性声黑洞抑制面板颤振

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-05-12 Epub Date: 2026-02-04 DOI: 10.1016/j.jsv.2026.119694

Zhuogeng Zhang , Hongli Ji , Hongya Qian , Kuikui Zhong , Jinhao Qiu , Li Cheng

This study introduces an innovative combined-nonlinear acoustic black hole (CNABH) structure, integrating a nonlinear part and an acoustic black hole (ABH) part, for panel flutter suppression. To investigate its aeroelastic behavior, the coupled aeroelastic equations of panel with CNABH are derived by coupling the respective governing equations of the panel, ABH, and nonlinear part. The flutter suppression effect is numerically assessed via an iterative solution method, thus verifying CNABH’s feasibility. Results show that the CNABH can increase the panel's flutter critical boundary by 27.8%, outperforming a single nonlinear energy sink (NES) or an ABH, highlighting its advantages. Frequency analysis under varying boundary conditions clarifies that the panel flutter suppression performance of the CNABH critically depends on the frequency adaptability between the ABH part and the nonlinear part. Meanwhile, energy flow analysis reveals that the CNABH effectively integrates the energy sink characteristics of the nonlinear part and the ABH part, enabling the two parts to work synergistically to achieve rational energy distribution and efficient dissipation, thereby suppressing panel flutter more effectively. In summary, this work provides a new approach for panel flutter suppression and deepens the understanding of the nonlinear-ABH synergistic effect in aeroelastic control.

介绍了一种新颖的组合非线性声黑洞结构，将非线性部分和声黑洞部分集成在一起，用于板板颤振抑制。为了研究其气动弹性性能，通过将面板、ABH和非线性部分各自的控制方程耦合，推导了面板与CNABH的气动弹性耦合方程。通过迭代求解方法对颤振抑制效果进行了数值评估，验证了CNABH的可行性。结果表明，CNABH可将面板的颤振临界边界提高27.8%，优于单一非线性能量汇（NES）或ABH，突出了其优势。变边界条件下的频率分析表明，CNABH的面板颤振抑制性能在很大程度上取决于ABH部分与非线性部分之间的频率适应性。同时，能量流分析表明，CNABH有效地整合了非线性部分和ABH部分的能量汇特性，使两者协同工作，实现了合理的能量分配和高效的耗散，从而更有效地抑制了面板颤振。综上所述，该工作为抑制板颤振提供了一种新的方法，加深了对气动弹性控制中非线性- abh协同效应的理解。

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引用次数: 0

Efficient explicit method of acquiring frequency-response curves for nonlinear vibrating systems 获取非线性振动系统频率响应曲线的有效显式方法

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-05-12 Epub Date: 2026-02-05 DOI: 10.1016/j.jsv.2026.119689

Ping Zhou , Jiahui Chang , Songhan Zhang , Lei Hou , Wei Fan , Hui Ren

The characteristics of nonlinear vibrating systems are universally investigated by accurately describing the amplitude of the response across a range of frequencies, which is referred to as the frequency-response curve. These curves are conventionally obtained by the arc-length continuation method, where a set of nonlinear algebraic equations is implicitly solved using Newton’s method at each point on the curve. This process poses a great challenge in terms of efficiency and robustness, because rough predictive values for Newton’s iterations (especially at turning points) lead to poor convergence when large step sizes are adopted to reduce computational cost. Therefore, efficient explicit methods tailored for accurately acquiring frequency-response curves are highly attractive. This work develops a new and robust method that allows for efficient explicit calculation of frequency-response curves. The key is to transform the previous process, where nonlinear algebraic equations are implicitly solved at each point on the response curve, into solving ordinary differential equations (ODEs) that are well-suited for explicit integrators. The explicit Runge-Kutta-Chebyshev integrator with an adaptive-step-size strategy is adopted to solve the ODEs. Its stability domain can be adaptively extended during the simulation, reaching a good tradeoff between stability and efficiency while simultaneously keeping local errors bounded. This capability ensures efficient explicit calculation of response curves with accessible large step sizes. Several numerical examples demonstrate the advantages and feasibility of the proposed method. The proposed method contributes to the efficient analysis of the frequency response of nonlinear systems, which is crucial in potential applications such as the agile design of structure parameters.

非线性振动系统的特性是通过精确地描述在一个频率范围内的响应幅度来研究的，这被称为频率响应曲线。这些曲线通常由弧长延拓法获得，其中一组非线性代数方程在曲线上的每一点使用牛顿法隐式求解。这个过程在效率和鲁棒性方面提出了很大的挑战，因为当采用较大的步长来降低计算成本时，牛顿迭代的粗糙预测值（特别是在转折点处）导致收敛性差。因此，精确获取频率响应曲线的有效显式方法具有很高的吸引力。这项工作开发了一种新的和鲁棒的方法，允许有效的显式计算频率响应曲线。关键是将前面的过程（非线性代数方程在响应曲线上的每个点隐式求解）转换为求解非常适合显式积分器的常微分方程（ode）。采用具有自适应步长策略的显式Runge-Kutta-Chebyshev积分器来求解ode。在仿真过程中，可以自适应地扩展其稳定域，在保持局部误差有界的同时，很好地平衡了稳定性和效率。这种能力确保了有效的显式计算响应曲线与可访问的大步长。算例验证了该方法的优越性和可行性。该方法有助于有效分析非线性系统的频率响应，这对结构参数的敏捷设计等潜在应用至关重要。

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引用次数: 0

Exploring physics-enhanced neural operators for predicting vehicle-bridge dynamics: From 1-DOF to 13- DOF vehicle models 探索物理增强神经算子预测车辆-桥梁动力学：从1-DOF到13- DOF车辆模型

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-05-12 Epub Date: 2026-02-05 DOI: 10.1016/j.jsv.2026.119686

Jin Zhu , Yijun Zhu , Mengxue Wu , Xingyu Lan

Accurate and efficient prediction of coupled vehicle-bridge dynamics (CVBD) is essential for structural safety assessment, ride comfort evaluation, and intelligent maintenance. While traditional numerical solvers offer high fidelity, they are often computationally expensive, especially in large-scale simulations or real-time evaluations involving parameter uncertainty and stochastic excitations. This study explores the applicability of Fourier neural operators (FNOs) as surrogate models for CVBD prediction across systems of varying complexity, from simplified 1 degree of freedom (1-DOF) to full-scale 13 degrees of freedom (13-DOF) vehicle models. Rather than emphasizing physics-informed constraints alone, the investigation systematically compares different input feature designs, output strategies, and loss function formulations. Results show that incorporating road roughness derivatives and using wider normalization scales greatly enhance prediction accuracy, particularly for acceleration responses. For high-dimensional systems, the best performance is achieved when displacement, velocity, and acceleration are predicted jointly using a weighted data loss function, without the need for additional physics-based terms. These findings provide valuable insights for constructing FNO-based surrogate models for CVBD applications and emphasize the importance of input-output design and loss selection in achieving both accuracy and efficiency.

准确、高效的车桥耦合动力学预测是桥梁结构安全评估、平顺性评估和智能维修的基础。虽然传统的数值求解方法提供了高保真度，但它们通常计算成本很高，特别是在涉及参数不确定性和随机激励的大规模模拟或实时评估中。本研究探讨了傅立叶神经算子（FNOs）作为替代模型在不同复杂性系统中的适用性，从简化的1自由度（1- dof）到全尺寸的13自由度（13- dof）车辆模型。该研究没有单独强调物理约束，而是系统地比较了不同的输入特征设计、输出策略和损失函数公式。结果表明，结合道路粗糙度导数和使用更宽的归一化尺度大大提高了预测精度，特别是对加速度响应。对于高维系统，当使用加权数据损失函数联合预测位移、速度和加速度时，无需额外的基于物理的术语，即可实现最佳性能。这些发现为CVBD应用构建基于fno的替代模型提供了有价值的见解，并强调了输入输出设计和损失选择在实现准确性和效率方面的重要性。

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引用次数: 0

On reflection of cylindrical waves in a solid half-space due to a line P source 线P源对圆柱形波在固体半空间中的反射

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-05-12 Epub Date: 2026-02-04 DOI: 10.1016/j.jsv.2026.119695

Ya-Zhou Liu , Yeong-Bin Yang , Hsiao-Hui Hung , Jie Li , Ze-Yang Zhou

This paper presents an intuitive method for deriving the asymptotic solution of all detectable waves reflected at the free surface due to the incidence of a line P source, i.e., P- and S-disturbances that propagate horizontally at their respective velocities with a decrease rate of

x^{- 3 / 2}

(where

x

denotes the horizontal distance). At first, the line P source is regarded as a combination of plane-wave components incident with real angles and those incident with imaginary angles. Based on the theory of plane-wave reflection with an extension to the range of imaginary incidences, the two transmissible plane-wave incidences of small real angle and of finite imaginary angle which directly lead to the actual P- and S-disturbances at large distances, respectively, are identified. Consequently, the geometric ray representation for near-field reflection associated with the S-disturbance is clarified after a modification upon the conventional theory. In analogy with the classical plane-wave reflection theory, the reflected waves are obtained by multiplying the fully reflected waves due to the incident cylindrical wave by the corresponding reflection coefficients, which are determined by the stress-free condition at the surface. Hence, the present solution can capture all the reflected waves with a decrease rate of

x^{- 3 / 2}

, unlike the conventional asymptotic solution. This intuitive method not only simplifies the calculation of asymptotic solutions using the method of steepest descent or stationary phase, but is physically more meaningful via establishment of a direct link between the reflection of plane waves and that of cylindrical waves. Results show that the S-disturbance due to a shallow or slowly oscillating line P source becomes significant especially for the responses beneath the surface. In contrast, the S-disturbance was recognized as a minor response and ignored in many existing studies.

本文提出了一种直观的方法，用于推导所有可探测波在自由表面反射的渐近解，这是由于线P源的入射，即以各自的速度水平传播的P-和s -扰动，其衰减率为x−3/2（其中x表示水平距离）。首先将线P源看作实角入射平面波分量和虚角入射平面波分量的组合。根据扩展到虚入射范围的平面波反射理论，找出了直接导致大距离实际P-扰动和s -扰动的两种小实角和有限虚角的透射平面波入射。因此，在对传统理论进行修正后，澄清了与s扰动相关的近场反射的几何射线表示。与经典平面波反射理论类似，反射波是由入射圆柱波引起的全反射波乘以相应的反射系数得到的，反射系数由表面无应力条件决定。因此，与传统的渐近解不同，该解可以捕获所有反射波，衰减率为x−3/2。这种直观的方法不仅简化了用最陡下降法或定相法求渐近解的计算，而且在平面波反射和柱面波反射之间建立了直接联系，在物理上更有意义。结果表明，由于浅振荡或慢振荡线P源引起的s扰动对地表以下的响应尤为明显。相比之下，s干扰被认为是一种轻微的反应，在许多现有的研究中被忽略。

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引用次数: 0

Elastic wave scattering in metamaterials with localized defects 具有局部缺陷的超材料中的弹性波散射

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-04-28 Epub Date: 2026-01-15 DOI: 10.1016/j.jsv.2026.119663

Charles Dorn

This work presents a semi-analytical multiple scattering formulation for elastic waves in periodic media with defects. We model the scattering of Bloch waves interacting with defects of arbitrary strength that are on a length scale much smaller than relevant wavelengths. The basis for the proposed framework is the far-field asymptotic approximation of the lattice Green’s function represented in terms of Bloch eigenfunctions. Thus, it is applicable to any periodic material whose dispersion relations and corresponding mode shapes are available either analytically or numerically. The local perturbation method is used to resolve the singularity in the far-field lattice Green’s function, enabling the derivation of a tractable multiple scattering system. Examples are presented showing agreement between the scattering model and high-fidelity transient simulations in the context of a mass-spring network and a beam-based metamaterial. The proposed modeling framework is computationally efficient, opening the door to inverse problems such as the design of defects for wave manipulation. We present the inverse design of a set of defects embedded in a periodic metamaterial for wave guiding, demonstrating that our scattering model is an effective tool for exploring the vast design space of defect engineering in metamaterials.

本文提出了含缺陷周期性介质中弹性波的半解析多重散射公式。我们模拟了布洛赫波与任意强度缺陷相互作用的散射，这些缺陷的长度尺度远小于相关波长。所提出的框架的基础是晶格格林函数的远场渐近逼近，用Bloch特征函数表示。因此，它适用于任何周期性材料，其色散关系和相应的模态振型无论是解析的还是数值的。采用局部摄动法解决了远场晶格格林函数中的奇异性，从而推导出一个可处理的多重散射系统。举例表明，在质量弹簧网络和基于光束的超材料的背景下，散射模型与高保真瞬态模拟之间的一致性。所提出的建模框架计算效率高，为波浪操纵缺陷设计等反问题打开了大门。我们提出了一组嵌入在周期性超材料中的缺陷的逆设计用于导波，表明我们的散射模型是探索超材料缺陷工程设计空间的有效工具。

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引用次数: 0

Corrigendum to “Nonlinear vibration analysis of compressible constrained layer damping using a frequency- and load-dependent virtual material” [J. Sound Vib. 626 (2026) 119626] “基于频率和载荷相关虚拟材料的可压缩约束层阻尼非线性振动分析”[J]。[au:][音626 (2026)]

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration

Pub Date : 2026-04-28 Epub Date: 2026-01-22 DOI: 10.1016/j.jsv.2026.119662

Yongbu Jin, Dong Wang, Di Yuan, Yihan Du, Qiang Wan

引用次数: 0

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