Haisheng Li

East China Normal University

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Co-Authors

Donghuan Liu

Beijing Botanical Garden

Yonghao Ma

East China Normal University

Hujun Bao

Zhejiang University

Youdong Liang

China Datang Corporation (China)

Mingkun Li

East China University of Science and Technology

Ya Ma

Nanjing Agricultural University

J.G. Teng

Guangdong University of Technology

Zeyi Tu

Chinese Academy of Sciences

Dongshuai Hou

Qingdao University of Technology

Xinpeng Wang

Qingdao University of Technology

Cooperative Institutions

Zhejiang University

East China Normal University

Chinese Academy of Sciences

Beijing National Laboratory for Molecular Sciences

Qingdao University of Technology

University of Chinese Academy of Sciences

Institute of Chemistry

Qingdao University of Science and Technology

University of Science and Technology Beijing

Beihang University

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A multi-frequency piezoelectric vibration energy harvester with liquid filled container as the proof mass

Applied Physics Letters (2019)

Donghuan Liu Haisheng Li Hang Feng Torhonjan Yalkun Muhammad R. Hajj

The performance of a vibration energy harvester consisting of a beam with a water-filled container as the tip mass is investigated. Particular attention is paid to the capability of this system to harvest energy over a broader range of frequencies compared to the traditional beam with a solid tip mass system. The broadening is due to geometric, inertial, damping, flow nonlinearities, or a combination of them. These nonlinearities cause energy exchange between the system's modes through internal resonances leading to nonlinear periodic, or periodically or chaotically modulated responses over a relatively broad range of excitation frequencies. The results show an output voltage response that has two or more resonance peaks in comparison to the traditional harvester, which has only one peak near the resonance frequency. The system's parameters including the excitation frequency and amplitude and the water depth to container diameter ratio can be used to control the frequency bandwidth over which energy is harvested.

Proof mass

Added mass

Mechanical Resonance

Natural frequency

10.1063/1.5089289

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Citations (29)

An extension of clariaut equation and its application

Applied mathematics/Applied Mathematics. A Journal of Chinese Universities/Gao-xiao yingyong shuxue xuebao (1997)

Haisheng Li Zou Zhenqiang Guozhao Wang

Slippage

10.1007/s11766-997-0001-3

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Citations (10)

Algorithm for finding geodesic path based on rotation tree

Hui Sun Haisheng Li

Visibility graph method is a main method for finding a geodesic path within a polygonal domain. Rotation tree method is a simple and efficient approach to construct visible edges. However, this approach is unable to distinguish whether a visible edge is inside a polygonal domain or not. This paper presents an inside / outside determination algorithm within O(1) time. Based on this algorithm and rotation tree method, we introduce a new approach to find a geodesic path. Our approach isn't optimal in time, but it is easy to implement and do run efficiently.

Tree (set theory)

Visibility

Visibility graph

10.1109/icacte.2010.5579834

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Citations (0)

Computer Aided Filament Winding for Elbows

Journal of Software (2002)

Haisheng Li

Filament winding pattern plays a key role in computer-aided filament winding, unfortunately there is no reliable method for non-axisymmetric filament winding pattern design. In addition, a substantial amount of data storage is an obstacle to non-axisymmetric filament winding. A filament winding pattern for elbows and a new data processing method are presented in this paper.

Filament winding

Source

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Citations (10)

Study on Determination Method of Resilience Modulus of Asphalt Pavement Structure Subgrade

Advances in transdisciplinary engineering (2024)

Haisheng Li J.G. Teng Wenjuan Wu Ya Ma Shijie Ma

Subgrade is an important component of pavement structure system, and subgrade resilience modulus is an important mechanical parameter to characterize the deformation resistance of subgrade and pavement structure design. Through FWD bending detection of different pavement structures of solid engineering, this paper studies the state distribution of compressive stress on the top surface of subgrade soil under the action of FWD load (Subgrade top and improve soil bottom) was studied in this paper. Reverse calculation of subgrade modulus under different working conditions was conducted. The relationship between subgrade top compressive stress and reverse calculation modulus and the reasonable range of calculation correction coefficient of test data of different structural test roads were analyzed. The results show that the soil subgrade model exhibits nonlinear characteristics, and the modulus of the subgrade increases with the distance of the sensor from the load center. With the increase of structural layer on subgrade, the inverse modulus of subgrade increases. The basic modulus of soil with different structures has the same change trend with the seasons, the basic modulus of soil increases in autumn and winter and decreases in spring and summer. The compressive stress generated by FWD at the top of subgrade decreases. The modulus correction coefficient of subgrade decreases with the increase of structural layer thickness, and C = 0.5493λ + 0.4556 is constructed, which proves that the model is suitable for any pavement structure.

Resilience

Asphalt pavement

10.3233/atde241121

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Numerical Simulation of Creep Damage and Life Prediction of Superalloy Turbine Blade

Mathematical Problems in Engineering (2015)

Donghuan Liu Haisheng Li Yinghua Liu

Creep caused failure is an important failure mode of the turbine blade. A numerical approach of life assessment of the superalloy turbine blade is proposed in the present paper based on the Lemaitre-Chaboche creep damage model. Material damage is introduced into each element based on the ANSYS APDL function, and the creep damage effect is considered through the modification of Young’s modulus. At last, the strength life and stiffness life of the blade can be obtained through the maximum damage and maximum creep strain criterion, respectively. The present method can not only consider the effect of creep damage, but also give the time histories of the element stresses, damage, and creep strain. The above life prediction results based on the proposed method are compared with theθprojection method, and the results suggest that the present life prediction method of turbine blade is feasible and turbine blade’s life in the present study is determined by creep fracture rather than creep deformation.

10.1155/2015/732502

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Citations (24)

Blob Detection Based on Soft Morphological Filter

IEICE Transactions on Information and Systems (2019)

Weiqing Tong Haisheng Li Guoyue Chen

Blob detection is an important part of computer vision and a special case of region detection with important applications in the image analysis. In this paper, the dilation operator in standard mathematical morphology is firstly extended to the order dilation operator of soft morphology, three soft morphological filters are designed by using the operator, and a novel blob detection algorithm called SMBD is proposed on that basis. SMBD had been proven to have better performance of anti-noise and blob shape detection than similar blob filters based on mathematical morphology like Quoit and N-Quoit in terms of theoretical and experimental aspects. Additionally, SMBD was also compared to LoG and DoH in different classes, which are the most commonly used blob detector, and SMBD also achieved significantly great results.

Dilation (metric space)

Blob detection

Corner detection

Operator (biology)

10.1587/transinf.2018edp7385

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Citations (5)

Filament winding pattern design for diameter-varying tube

Journal of Reinforced Plastics and Composites (2022)

Haisheng Li Yonghao Ma

The traditionally diameter-varying tube is a combination part of cylinder and cone with unsmooth transition region, which is usually a weak link. Using spline technique, we present a smooth diameter-varying tube consisting of cylinder and revolution surface with interpolation spline as meridian, and study the stability of three categories of typical curves used for filament winding, geodesics, semi-geodesics, and constant winding angle curve. A sufficient condition that makes fiber path non-bridging is introduced by analyzing normal curvature, and furthermore there is a sufficient and necessary condition of non-bridging geodesics. For constant angle winding, an efficient algorithm for determining whether constant winding angle curve is stable or not is presented by investigating its slippage coefficient , and a novel winding pattern design metthod is proposed for filament winding diameter-varying tube. These methods have been applied to our computer aided filament winding software. The experimental and simulation results show that our method can design winding pattern of uniformly covering the mandrel, and efficiently shortens the design time.

Mandrel

Filament winding

Slippage

Arc length

Spline (mechanical)

10.1177/07316844221135174

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Citations (2)

Molecular structure and dynamics of water on the surface of cement hydration products: Wetting behavior at nanoscale

Applied Surface Science (2022)

Pan Wang Yuying Duan Heping Zheng Zheng Chen Muhan Wang

Dynamics