Systems and methods for providing doctor blade holders with vibration mitigation

Abstract

A self-compensating tube assembly is disclosed for use in a doctor blade holder. The self-compensating tube assembly includes a tube including a membrane that encloses a liquid with a substantially invariable bulk modulus of elasticity, density and viscosity; and chatter responsive for providing any of monitoring means of blade chatter through pressure, damping of blade chatter, and minimizing blade chatter.

What is claimed is: 
     
         1 . A self-compensating tube assembly for use in a doctor blade holder, said self-compensating tube assembly comprising:
 a tube including a membrane that encloses a liquid with a substantially invariable bulk modulus of elasticity, density and viscosity; and   chatter responsive means for providing any of monitoring of blade chatter through pressure, damping of blade chatter, and minimizing blade chatter.   
     
     
         2 . The self-compensating tube assembly as claimed in  claim 1 , wherein said tube includes directional fiber reinforcement. 
     
     
         3 . The self-compensating tube assembly as claimed in  claim 1 , wherein said self-compensating tube assembly includes dynamic means for enhancing dynamic stiffness and damping. 
     
     
         4 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping functions by inertial restriction. 
     
     
         5 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping functions by viscous restriction. 
     
     
         6 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping includes at least one inner tubular component. 
     
     
         7 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping includes at least one restrictor that limits liquid flow. 
     
     
         8 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping functions by squeeze film damping. 
     
     
         9 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping functions by viscous shear. 
     
     
         10 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping includes open cell material. 
     
     
         11 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping includes at least two inner tubular components, separated by restrictors. 
     
     
         12 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and provides damping via at least one of inertial or viscous restriction. 
     
     
         13 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping includes parallel compartments in the cross-machine direction. 
     
     
         14 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping includes discrete compartments along the cross-machine direction. 
     
     
         15 . The self-compensating tube assembly as claimed in  claim 3 , wherein said means for enhancing dynamic stiffness and damping includes a magnetic field means inserted in adjacent blade holder components, and wherein the liquid is a magnetorheological fluid. 
     
     
         16 . The self-compensating tube assembly as claimed in  claim 1 , wherein said chatter responsive means includes dynamic pressure sensors that are attached to either or both ends for dynamic pressure sensing. 
     
     
         17 . The self-compensating tube assembly as claimed in  claim 1 , wherein ends of said tube are sealed by clamped means for clamping the ends of the tube. 
     
     
         18 . The self-compensating tube assembly as claimed in  claim 1 , wherein ends of said tube are sealed by using o-rings. 
     
     
         19 . A self-compensating tube assembly for use in a doctor blade holder, said self-compensating tube assembly comprising:
 a tube including a membrane that encloses a liquid with a substantially invariable bulk modulus of elasticity, density and viscosity; and   dynamic means for enhancing dynamic stiffness and damping.   
     
     
         20 . A method of providing a self-compensating tube assembly for use in a doctor blade holder, said method comprising the steps of:
 providing a tube including a membrane that encloses a liquid with substantially invariable bulk modulus of elasticity, density and viscosity; and   providing any of monitoring of blade chatter through pressure, damping of blade chatter and minimizing of blade chatter.