Jun Teng

Harbin Institute of Technology

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Shuang Wang

University of Science and Technology of China

Guan‐Jie Fan‐Yuan

University of Science and Technology of China

Zheng‐Fu Han

University of Science and Technology of China

Guang‐Can Guo

University of Science and Technology of China

Wei Chen

University of Science and Technology of China

Zhen−Qiang Yin

University of Science and Technology of China

Feng-Yu Lu

University of Science and Technology of China

Wei Lu

Harbin Institute of Technology

Kai Huang

Shanghai Institute of Technology

Wei‐Hua Hu

Harbin Institute of Technology

Cooperative Institutions

Harbin Institute of Technology

Chinese Academy of Sciences

University of Science and Technology of China

State Key Laboratory of Cryptology

CAS Key Laboratory of Urban Pollutant Conversion

University of Chinese Academy of Sciences

Beijing Academy of Quantum Information Sciences

Zhejiang University

Shenzhen Institute of Information Technology

East China University of Science and Technology

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A new moveable calibration method for phased array radar

Dongli Liu Jun Teng Xiaofang Shao

Phased array radar calls for calibration at fixed period to guarantee high target indication precision. In order to make up the shortage of traditional static and dynamic method, the paper proposed a new active moveable calibration method for phased array radar, its basic principles and implementation scheme of engineering are introduced, experimental data is analyzed at the same time. This method gets good application in operational calibration for phased array radar.

Economic shortage

Radar Systems

10.1109/mic.2012.6273424

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Stress variation analysis based on temperature measurements at Zhuhai Opera House

Structural Monitoring and Maintenance (2018)

Wei Lu Jun Teng Lihang Qiu Kai Huang

The Zhuhai Opera House has an external structure consisting of a type of spatial steel, where the stress of steel elements varies with the ambient temperature. A structural health monitoring system was implemented at Zhuhai Opera House, and the temperatures and stresses of the structures were monitored in real time. The relationship between the stress distribution and temperature variations was analysed by measuring the temperature and stresses of the steel elements. In addition to measurements of the structure stresses and temperatures, further simulation analysis was carried out to provide the detailed relationship between the stress distributions and temperature variations. The limited temperature measurements were used to simulate the structure temperature distribution, and the stress distributions of all steel elements of the structure were analysed by building a finite element model of the Zhuhai Opera House spatial steel structure. This study aims to reveal the stress distributions of steel elements in a real-world project based on temperature variations, and to supply a basic database for the optimal construction time of a spatial steel structure. This will not only provide convenient, rapid and safe early warnings and decision-making for the spatial steel structure construction and operation processes, but also improve the structural safety and construction accuracy of steel space structures.

Opera house

10.12989/smm.2018.5.1.001

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Citations (1)

Experimental investigation of prefabricated buckling-restrained steel coupling beam with modified buckling-restrained RC panel

Structures (2025)

Zuohua Li Lei Ge Yihe Qi J. Miao Jun Teng

10.1016/j.istruc.2025.108252

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Twin-field protocols: Towards intercity quantum key distribution without quantum repeaters

Fundamental Research (2021)

Zhen−Qiang Yin Feng-Yu Lu Jun Teng Shuang Wang Wei Chen

Quantum key distribution

10.1016/j.fmre.2020.11.001

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Citations (31)

Study on mechanical model and shaking table test of spherical tank rolling isolation

Earthquake Engineering & Structural Dynamics (2022)

Yuan Lyu Jiangang Sun Zhuohua Li Jun Teng Lifu Cui

Abstract This paper proposed a spherical tank rolling isolation structural system assembled by the spherical tank, I‐steel ring beam and rolling isolation devices, and carried out the corresponding mechanical model research and shaking table test. First, a restoring force model for rolling isolation device with symmetrical concave surface was introduced. Based on the restoring force model and potential fluid theory, a mechanical model considering the interaction of fluid, support and rolling isolation layer was established. Numerical analysis results show that the rolling isolation reduction ratio always remains high at different liquid level heights. Shaking table tests were carried out to study the damping performance of the spherical tank rolling isolation structural system, and to provide verification for the established mechanical model. Test results showed that the seismic response of the spherical tank rolling isolation structural system was much lower than that of the nonisolated spherical tank. The reduction ratio of acceleration and support deformation can reach 56% to 82%, which greatly reduced the risk of structural failure. In addition, the calculated results of the mechanical model were in good agreement with the test results.

Earthquake shaking table

Isolation

Seismic isolation

10.1002/eqe.3644

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Citations (3)

Twin-field quantum key distribution with passive-decoy state

New Journal of Physics (2020)

Jun Teng Feng-Yu Lu Zhen−Qiang Yin Guan‐Jie Fan‐Yuan Rong Wang

Abstract Twin-Field quantum key distribution (TF-QKD) and its variants, e.g. phase-maching QKD, sending-or-not-sending QKD, and no phase post-selection TFQKD promise high key rates at long distance to beat the rate distance limit without a repeater. The security proof of these protocols are based on decoy-state method, which is usually performed by actively modulating a variable optical attenuator together with a random number generator in practical experiments, however, active-decoy schemes like this may lead to side channel and could open a security loophole. To enhance the source security of TF-QKD, in this paper, we propose passive-decoy based TF-QKD, in which we combine TF-QKD with the passive-decoy method. And we present a simulation comparing the key generation rate with that in active-decoy, the result shows our scheme performs as good as active decoy TF-QKD, and our scheme could reach satisfactory secret key rates with just a few photon detectors. This shows our work is meaningful in practice.

Quantum key distribution

Decoy

Repeater (horology)

Key generation

10.1088/1367-2630/abbab7

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Citations (2)

Associated Data Analysis and Application Based on the Stress Measurements

Structural Health Monitoring (2017)

Wei Lu Jun Teng Runfa Wen Qiexin Peng

Stress is the essential measurand for the structural health monitoring system of the spatial steel structures, which can be usually used to evaluate the strength of the structural member directly and the safety of the whole structure indirectly. The strain sensors are placed to collect the measurements, while the effectiveness of such headend sensors is the key point to ensure the whole structural health monitoring evaluation based on the stress measurements be in normal working condition. This paper focuses on the inherent correlation relationship of structural stress measurements, the associated data analysis is given and the sensor diagnosis is given as the application of the associated data analysis. The stress measurements collected from the structural health monitoring system of Shenzhen Bay Stadium are used as an example to illustrate proposed associated data analysis and its application, which can be the references for the association analysis and its application of the similar large span spatial structures.

Structural Health Monitoring

Stadium

10.12783/shm2017/14030

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Instrumentation on structural health monitoring systems to real world structures

Smart Structures and Systems (2015)

Jun Teng Wei Lu Runfa Wen Ting Zhang

Instrumentation on structural health monitoring system imposes critical issues for applying the structural monitoring system to real world structures, for which not only on the configuration and geometry, but also aesthetics on the system to be monitored should be considered. To illustrate this point, two real world structural health monitoring systems, the structural health monitoring system of Shenzhen Vanke Center and the structural health monitoring system of Shenzhen Bay Stadium in China, are presented in the paper. The instrumentation on structural health monitoring systems of real world structures is addressed by providing the description of the structure, the purpose of the structural health monitoring system implementation, as well as details of the system integration including the installations on the sensors and acquisition equipment and so on. In addition, an intelligent algorithm on stress identification using measurements from multi-region is presented in the paper. The stress identification method is deployed using the fuzzy pattern recognition and Dempster-Shafer evidence theory, where the measurements of limited strain sensors arranged on structure are the input data of the method. As results, at the critical parts of the structure, the stress distribution evaluated from the measurements has shown close correlation to the numerical simulation results on the steel roof of the Beijing National Aquatics Center in China. The research work in this paper can provide a reference for the design and implementation of both real world structural health monitoring systems and intelligent algorithm to identify stress distribution effectively.

Structural Health Monitoring

Instrumentation

Identification

10.12989/sss.2015.15.1.151

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Citations (18)

Stress Prediction for Distributed Structural Health Monitoring Using Existing Measurements and Pattern Recognition

Sensors (2018)

Wei Lu Jun Teng Qiushi Zhou Qiexin Peng

The stress in structural steel members is the most useful and directly measurable physical quantity to evaluate the structural safety in structural health monitoring, which is also an important index to evaluate the stress distribution and force condition of structures during structural construction and service phases. Thus, it is common to set stress as a measure in steel structural monitoring. Considering the economy and the importance of the structural members, there are only a limited number of sensors that can be placed, which means that it is impossible to obtain the stresses of all members directly using sensors. This study aims to develop a stress response prediction method for locations where there are insufficent sensors, using measurements from a limited number of sensors and pattern recognition. The detailed improved aspects are: (1) a distributed computing process is proposed, where the same pattern is recognized by several subsets of measurements; and (2) the pattern recognition using the subset of measurements is carried out by considering the optimal number of sensors and number of fusion patterns. The validity and feasibility of the proposed method are verified using two examples: the finite-element simulation of a single-layer shell-like steel structure, and the structural health monitoring of the space steel roof of Shenzhen Bay Stadium; for the latter, the anti-noise performance of this method is verified by the stress measurements from a real-world project.

Structural Health Monitoring

10.3390/s18020419

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Citations (14)

Force Feedback Method for Statically Indeterminate Steel Structure Construction Based on Staged Temperature Measurement

Sensors (2024)

Wei Lu Xiao‐Yong Fang Liming Liu Chen Yang Ao Wei‐Hua Hu

Structural design usually adopts uniform temperature action. However, during the actual construction of the structure, the temperature field acting on the structure is inhomogeneous. Therefore, the simulation of the construction of statically indeterminate steel structures considering only the uniform temperature field cannot truly reflect the temperature action after structural molding and the evolution of the stress performance of the temporary stress system of structural construction. This paper proposes a force feedback method for the construction of statically indeterminate steel structures based on staged temperature measurements. In this method, the construction sequence and the measured temperature are taken into account, and the structural response under the action of temperature is obtained by using the first processing method in the matrix displacement method and the deformation coordination formula to obtain the deformation and stress values of the structure. The application results show that the structural forces calculated by the method proposed in this paper are closer to the measured data in the field, and the error is reduced by 10~40%. This paper provides a reference for the calculation of construction forces in statically indeterminate steel structures considering the effect of temperature inhomogeneity and provides a basis for construction safety assessment and schedule management.

Statically indeterminate

Indeterminate

10.3390/s24248073

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