Harbin Institute of Technology

Harbin Engineering University

Northeast Forestry University

Jian Li

Lijuan Wang

Peng Zhou

Na Wei

Jiayi Ma

Zijing Pan

Jianjin Li

Zhitao Wang

Kun-Mean Hou

Heping Xie

Jiafan Luo

Shuying Li

Yuping Ning

Lianya Hu

Tianhao Guan

Haiying Zhou

Decheng Zuo

Yuanyuan Wang

Liang Ming

The present disclosure provides a semi-physical simulation test bench and test method for a multi-machine parallel operation device of gas turbines. The gas turbines are all connected with gearbox shafts through SSS clutches, torque meters and couplers, and then a hydraulic dynamometer, an electric turbine dynamometer and a generator are independently or jointly driven through couplers and torque meters so as to charge a storage battery. Multi-shaft gearboxes comprise parallel operation gearboxes, and are connected with a bridging gearbox through couplers, electromagnetic clutches, supports, torque meters and couplers. The gas turbines can drive an electric dynamometer and the electric turbine dynamometer independently or cooperatively, so that the system has good operation characteristics under different working conditions. Meanwhile, the storage battery is additionally arranged, the flexibility of the test bench is improved, and the energy utilization rate is increased.

Semi-physical simulation test bench and test method for multi-machine parallel operation device of gas turbines

A preparation method of a high-barrier antibacterial flame-retardant food packaging film solves problems that an existing food packaging film is non-degradable, poor in preservation effect, and inflammable. The preparation method includes: performing blending reaction on chitosan quaternary ammonium salt and phytic acid to generate a polyelectrolyte complex; and adding the polyelectrolyte complex into a polyvinyl alcohol solution, heating the polyvinyl alcohol solution added with the polyelectrolyte complex to obtain a film-forming solution, pouring the film-forming solution into a mold, leveling and drying the film-forming solution to obtain the high-barrier antibacterial flame-retardant food packaging film. The food packaging film has water vapor permeability in 1.82-2.58×10g·s·m·Pa, oxygen permeability in 1.63-12.31 cm·mm·Pa·day, and a value of limiting oxygen index (LOI) in 28.10%-33.33%. The food packaging film performs an instant self-extinguishing behavior after ignition; and can inhibitandwhen used in packaging.

Preparation method of high-barrier antibacterial flame-retardant food packaging film

An energy consumption simulation and evaluation system for embedded device in energy consumption evaluation technology for electronic devices, which solves the problem that the energy consumption cannot be simulated under tasks operation condition with the existing systems. The present invention includes a graphical configuration management module for inputting graphical configuration parameters, a device energy consumption model building block for obtaining the AADL description model for software and hardware components through AADL abstract description of software and hardware at system-level, a model transformation module for AADL to GSPN model transformation; and a GSPN simulation module which utilizes QPME tool to simulate GSPN model; selectively loads an external energy-consuming event from the energy-consuming events sequence; and perform energy consumption simulation for the GSPN model in response to the external energy-consuming event by QPME tool to obtain a simulation result of the residual energy and lifetime of the system.

Energy consumption simulation and evaluation system for embedded device

Growing community of inventors

Harbin, China

Jian Li