For dealing with large static error due to poor immunity of the traditional fuzzy control, a novel interval type-2 fuzzy control system is proposed. By extending the typical membership functions to interval type-2 mem...For dealing with large static error due to poor immunity of the traditional fuzzy control, a novel interval type-2 fuzzy control system is proposed. By extending the typical membership functions to interval type-2 membership functions, the proposed control system can efficiently reduce the uncertain disturbance from real environment without increasing the design complexity. The simulation results on the water tank level control system showed that the proposed method succeeded in better static and dynamic control with stronger robust performance than the traditional fuzzy control method.展开更多
The capillary flow in asymmetric interior corner consisting of straight vane and curved wall is studied with analytical solution.The concept of equivalent interior corner angle is proposed to convert the asymmetric in...The capillary flow in asymmetric interior corner consisting of straight vane and curved wall is studied with analytical solution.The concept of equivalent interior corner angle is proposed to convert the asymmetric interior corner model into symmetric interior corner model.Then the governing equations of interior corner flow are established,and based on which the interior corner flow is calculated.This method is used to analyze the capillary flow in cylindrical vane-type surface tension tank with outer vanes.The research can provide beneficial reference to the design of vane-type surface tension tank.展开更多
Umbrella-type mud-water diversion labyrinth sedimentation device,which is characterized by the combination of two swash plate and wing plate into an umbrella type with a set angle,the angle range of the two swash plat...Umbrella-type mud-water diversion labyrinth sedimentation device,which is characterized by the combination of two swash plate and wing plate into an umbrella type with a set angle,the angle range of the two swash plate is 15º--100º,the vertical height of the swash plate is 60-70 mm,the parallel axis of the wing plate is the vertical direction,the height is 10-20 mm.the whole adopts the modular combination mode,and can be freely combined and disassembled according to different pond design,swash plate The interval(sedimentation distance)can be freely adjusted,mud take the mud road and water take the water road,to avoid the mutual interference of the water and mud road,to achieve the stability of the water quality.The turbidity of the sedimentation pond is low,stable in 0.3-2.0 NTU.展开更多
As a key supporting equipment for the construction of LNG carriers,the installation platform undertakes the support and guarantee of LNG carrier tank internal construction.This paper takes the secondary shielding inst...As a key supporting equipment for the construction of LNG carriers,the installation platform undertakes the support and guarantee of LNG carrier tank internal construction.This paper takes the secondary shielding installation platform of A-type tank as the object of study,the study firstly considers the semi-rigidity of the nodes and the material nonlinearity based on finite element software,and then the residual structure is calculated using static nonlinear method after single truss,two trusses and three trusses are invalid simultaneously.The research results show that the truss with higher components importance coefficient has greater impact on the residual structure when the truss is invalid;After the 2 trusses of installation platform become invalid completely,the further progressive collapse will not occur;When A1-HJ,A2-HJ and A2-HJ are dismantled at the same time,it will lead to the local progressive damage,which can cause the collapse of large-scale structures.The research findings can support the design and use of the installation platform.展开更多
基金Supported by Program for Liaoning Excellent Talents in University (LJQ2011032)the National Natural Science Foundation of China (61203021)the National Science and Technology Support Program (2012BAF05B00)
文摘For dealing with large static error due to poor immunity of the traditional fuzzy control, a novel interval type-2 fuzzy control system is proposed. By extending the typical membership functions to interval type-2 membership functions, the proposed control system can efficiently reduce the uncertain disturbance from real environment without increasing the design complexity. The simulation results on the water tank level control system showed that the proposed method succeeded in better static and dynamic control with stronger robust performance than the traditional fuzzy control method.
基金supported by the National Natural Science Foundation of China (Grant No. 50975280)
文摘The capillary flow in asymmetric interior corner consisting of straight vane and curved wall is studied with analytical solution.The concept of equivalent interior corner angle is proposed to convert the asymmetric interior corner model into symmetric interior corner model.Then the governing equations of interior corner flow are established,and based on which the interior corner flow is calculated.This method is used to analyze the capillary flow in cylindrical vane-type surface tension tank with outer vanes.The research can provide beneficial reference to the design of vane-type surface tension tank.
文摘Umbrella-type mud-water diversion labyrinth sedimentation device,which is characterized by the combination of two swash plate and wing plate into an umbrella type with a set angle,the angle range of the two swash plate is 15º--100º,the vertical height of the swash plate is 60-70 mm,the parallel axis of the wing plate is the vertical direction,the height is 10-20 mm.the whole adopts the modular combination mode,and can be freely combined and disassembled according to different pond design,swash plate The interval(sedimentation distance)can be freely adjusted,mud take the mud road and water take the water road,to avoid the mutual interference of the water and mud road,to achieve the stability of the water quality.The turbidity of the sedimentation pond is low,stable in 0.3-2.0 NTU.
文摘As a key supporting equipment for the construction of LNG carriers,the installation platform undertakes the support and guarantee of LNG carrier tank internal construction.This paper takes the secondary shielding installation platform of A-type tank as the object of study,the study firstly considers the semi-rigidity of the nodes and the material nonlinearity based on finite element software,and then the residual structure is calculated using static nonlinear method after single truss,two trusses and three trusses are invalid simultaneously.The research results show that the truss with higher components importance coefficient has greater impact on the residual structure when the truss is invalid;After the 2 trusses of installation platform become invalid completely,the further progressive collapse will not occur;When A1-HJ,A2-HJ and A2-HJ are dismantled at the same time,it will lead to the local progressive damage,which can cause the collapse of large-scale structures.The research findings can support the design and use of the installation platform.
