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The Research and Design on a Torque-Loading Device with Flexure Hinges

Author: CuiHongWei
Tutor: DaiHengZhen
School: Dalian University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Torque sensor Torque loader Pure Torque Flexible hinge Finite Element
CLC: TH823
Type: Master's thesis
Year: 2011
Downloads: 80
Quote: 0
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Abstract


Torque measurement is widely used in the current research and production , a torque loader proper design and research is very important . The main subject of calibration requirements for the loading of Dalian University of sensing hard and brittle piezoelectric torque sensor developed developed a flexible hinged torque loading , it is simply loading a force that will produce a balanced symmetric pure torque , and can achieve the the floating functions , has the advantages of simple structure, smooth and accurate load , easy to use . In this paper, by comparing a variety of design options to determine an optimal torque loader structure . Structure , performance and floating capacity requirements for torque loader were selected arc flexible hinge fillet type flexure hinge and reed flexure hinges as the connecting elements , and in accordance with the mechanical cassette second theorem deduced fillet type flexure hinge stiffness formula . A mechanical model of the establishment of the design torque loader , and consider a flexible hinge stretch compression deformation , the the precise torque loader input and output displacement model . The structural features of the basic theory combined with the design torque loader based on finite element analysis , finite element analysis method applies to torque loader . Reasonable set of boundary conditions were simulated on a state of no-load state and load torque torque loader work , analysis of static characteristics , torque loader state displacement contours and stress cloud , its detailed analysis of simulation data . Torque loader floating ability to assess , analyze the reasons for its floating abilities . Torque loader and static analysis based on a simple modal analysis . Finally, the torque loader structure optimization design , draw its optimized structure parameters . In order to verify the performance of the torque loading , design the torque loading on the experimental apparatus , and the experimental analysis of the three areas . Draw the load force and the actual output torque of the torque loading the value of the relationship formula . The experimentally measured data with the theoretical analysis and finite element simulation results match , thus proving the rationality torque loader design .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Mechanical quantity measuring instruments > Force measuring instruments
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