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Sprag clutch wedge high work -surface and dynamics of

Author: WuKai
Tutor: YanHongZhi
School: Central South University
Course: Mechanical Design and Theory
Keywords: Sprag clutch Logarithmic spiral Archimedes spiral Work -surface design Dynamics simulation
CLC: V233.12
Type: Master's thesis
Year: 2011
Downloads: 42
Quote: 1
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Abstract


Bracing air overrunning clutch transmission system as a key component required in high-speed , heavy-duty operating conditions stable jobs. How to design and manufacture to meet the actual working conditions of a high-performance clutch is a meaningful research. For the design of a reliable , durable, good dynamic performance bracing overrunning clutch , clutch key components of this wedge from the work surface and the clutch -type kinetics studies two aspects , as follows . On the eccentric arc, logarithmic spiral , spiral of Archimedes three working -surface contact with the wedge angle were analyzed. According to the state of the clutch wedge geometry , using the analytical method to establish the wedge angle function . Studied the wedge angle changes and the wedge angle of contact deformation on impact . According to the eccentric arc wedge surface geometry parameters , analysis of its value and the effective wedge angle cam lift . Geometries obtained by the logarithmic spiral and linear Archimedes screw surface design equation , according to the eccentric arc surface wedge design different characteristic parameters were the same wedge angle cam lift cam with the same wedge angle different lift wedge . Design work for different type faces bracing clutch virtual prototype modeling , dynamic simulation using ADAMS them . Obtained wedge clutch time , contact force and slippery angle parameters . Analysis of the logarithmic spiral linear surface and linear Archimedes screw face these two work -surface wedge wedge angle change and lift changes on the dynamic performance of the clutch , and the wedge of three working -surface conducted a comparative analysis of horizontal clutch . Dynamic performance test designed clutch platform for clutch performance and slippery wedge angle were tested. Comparative analysis of experimental results and simulation results show that basically consistent kinetic analysis demonstrated the correctness of the clutch .

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CLC: > Aviation, aerospace > Aviation > Aero-engine ( propulsion system ) > Engine attachment system > Transmission > Member
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