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Pang S.-H.,China Academy of Building Research | Pang S.-H.,China Building Material Test and Certification Group Co. | Ma J.-R.,China Academy of Building Research | Ma Z.-Z.,China Building Material Test and Certification Group Co. | And 2 more authors.
Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology | Year: 2010

The bending behavior of laminated glass was analyzed using negative uniform pressure test. The laminated glass consists of two monolithic 5 mm float glass and joints with 0.38 mm PVB interlayer. The dimension of laminated glass is 1000 mm × 1000 mm. It indicated that the center deflection of the laminated glass increased from 4.15 mm to 5.16 mm and the center maximum stress increased from 8.94 MPa to 10.50 MPa with the environmental temperature raised form 18°C to 35°C. The fit curves of the center deflection and maximum principal stress of laminated glass with temperature was given.

Bai B.,Beihang University | Bai G.-C.,Beihang University | Lin X.-Z.,Qinhuangdao Glass Industry Research and Design Institute
Zhendong yu Chongji/Journal of Vibration and Shock | Year: 2013

In order to diagnose and identify effectively faults for an aeroengine's whole-body vibration, the improved fuzzy support vector machine (FSVM) and multi-class fuzzy membership method combined with the information entropy technique was proposed here. It was compared with the traditional FSVM membership analysis method. The calculation model of multi-class fuzzy membership was established based on improving the traditional FSVM fuzzy membership function. Tests and examples for aircraft engines' overall vibration performance, and fault diagnosis and identification verified that the technology of multi-class fuzzy membership combined with information entropy is very effective. The weighted values between fault modes and fault causes were determined and the multi-parameter vibration performance analysis model was developed, the effects of various vibration causes on the overall state of an aeroengine were analyzed quantitatively, and a quantitative reference index was provided for aeroengine vibration suppressing.

Liu X.-Q.,Wuhan University of Technology | He F.,Wuhan University of Technology | Fang Y.,Wuhan University of Technology | Qiao Y.,Qinhuangdao Glass Industry Research and Design Institute
Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology | Year: 2013

The effects of melting temperature, holding time, batch pretreatment method on volatilization of B2O3 in borosilicate glass were studied. The results show that temperature effects the volatilization of B2O3 mainly in the lower temperature section of belowing 1000°C, the B2O3 volatilization is very small before the formation of glass melt; the B2O3 volatilization increases with the increasing of holding time, and will arrive at a stable level when the holding time is up to 4 h. The press of preforming on batch also has effect on B2O3 volatilization, and the most suitable press size is 30 MPa; Dry-press method can decrease B2O3 volatilization effectively, and in this way the B2O3 volatilization can reduce to 8.36%, compared with the 13.34% B2O3 volatilization when batch is in powder status.

Mi H.-K.,Wuhan University of Technology | Wang Y.-J.,Henan University of Urban Construction | Xu T.-S.,Qinhuangdao Glass Industry Research and Design Institute | Jia L.,Wuhan University of Technology | And 2 more authors.
Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology | Year: 2011

A novel model of high-loading complex structure FGB sensor are presented, through the analysis of the structure design principle of the cantilever beam optical fiber grating weighed sensor, using the ANSYS to simulate and calculate the structure of the sensor's elastomer. Under the constant-load, comparing and analysing the different changes of the stress state and the radial displacement, caused by different thickness of elastomer and diameter of hard center, finds that, when the elastic thickness is 10 mm and the hard center diameter is 75 mm, the designed elastomer meets the application of weighed sensor for large crane, the experimental results of loading/unloading experiment verificates the conclusion of ANSYS. This sensor has been used in the 2600 t large marine floating crane for the dynamic measurement of high-loading almost a year, this shows the effectiveness and practicality of this research.

Wu L.-H.,Hebei Vocational and Technical Institute of Building Material | Chen F.,Qinhuangdao Glass Industry Research and Design Institute | Li H.-Q.,Baoji University of Arts And Sciences
Gongneng Cailiao yu Qijian Xuebao/Journal of Functional Materials and Devices | Year: 2010

The crystallization process and kinetics of ultralow-expansion lithium aluminosilcate glass ceramics were investigated using differential scanning calorimetric (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM) and other measuring technologies, and the effects of phosphate on the crystallization mechanism and structure of glass ceramics were analyzed. The results show that the introduction of phosphorous can influence the glass phase separation and phase transition process. On the one hand, phosphorus pentoxide can be as effective nucleation induction agent to result in phase separate, which is beneficial to the nucleation and crystal growth; on the other hand, it can increase the crystallization active energy (E), make glass network structure rearrange difficultly, and restrain the grain growth.

Li H.-Y.,Northwestern Polytechnical University | Pang S.-H.,China Academy of Building Research | Ma J.,Northwestern Polytechnical University | Ren S.-P.,Qinhuangdao Glass Industry Research and Design Institute
Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology | Year: 2010

The AZO thin film with different Al-doped deposited at 400°C on the glass slide by ultrasonic spray pyrolysis. The optics and electricity character of the film were studied. It was shown that the doping of Al effect the optics and electricity character of AZO film. The AZO film has few surface defects, transparent of coated glass achieved 84% and sheet resistance is 60 Ω/□ when Al doping is 4at%.

Wang X.,University Of Science And Technology Liaoning | Wang Z.,Qinhuangdao glass industry research and design institute | Wang X.,Anshan Municipal Gas General Company
Advanced Materials Research | Year: 2013

This project aims to study the optimal control model of the ice-storage system which is theoretically close to the optimal control and also applicable to actual engineering. Using Energy Plus, the energy consumption simulation software, and the simple solution method of optimal control, researchers can analyze and compare the annual operation costs of the ice-storage air-conditioning system of a project in Beijing under different control strategies. Researchers obtained the power rates of the air-conditioning system in the office building under the conditions of chiller-priority and optimal contro1 throughout the cooling season. Through analysis and comparison, they find that after the implementation of optimal control, the annually saved power bills mainly result from non-design conditions, especially in the transitional seasons. © (2013) Trans Tech Publications, Switzerland.

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