Dynamic Analysis for Planar Multibody Mechanical Systems with Lubricated Joints
نویسندگان
چکیده
منابع مشابه
Dynamic Analysis for Planar Multibody Mechanical Systems with Lubricated Joints
The dynamic analysis of planar multibody systems with revolute clearance joints, including dry contact and lubrication effects is presented here. The clearances are always present in the kinematic joints. They are known to be the sources for impact forces, which ultimately result in wear and tear of the joints. A joint with clearance is included in the multibody system much like a revolute join...
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This work deals with the modelling of lubricated revolute joints in multibody mechanical systems. In most machines and mechanisms, the joints are designed to operate with some lubricant fluid. The high pressures generated in the lubricant fluid act to keep the journal and the bearing apart. Moreover, the thin film formed by lubricant reduces friction and wear, provides load capacity and adds da...
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In this study, the method of multiple scales is used to perform a nonlinear vibration analysis of a mechanical system in two cases; with dry and lubricated clearance joints. In the dry contact case, the Lankarani-Nikravesh model is used to represent the contact force between the joined bodies. The surface elasticity is modeled as a nonlinear spring-damper element. Primary resonance is discussed...
متن کاملRevolute joints with clearance in multibody systems
A computational methodology for dynamic analysis of multibody mechanical systems with joint clearance is presented in this work. Clearances always exist in real joints in order to ensure the correct relative motion between the connected bodies being the gap associated to them a result of machining tolerance, wear, and local deformations. Clearance at different joints is the source for impact fo...
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The multibody system approach provides enhanced models of vehicles , robots, and air-and spacecrafts. Mixed systems consisting of both rigid and deformable bodies are aimed at growing demands for reened simulation. A basic modeling framework for this class of mechanical systems is presented which covers also inelastic material behavior. Moreover, the Diierential-Algebraic Equations (DAEs) obtai...
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ژورنال
عنوان ژورنال: Multibody System Dynamics
سال: 2004
ISSN: 1384-5640
DOI: 10.1023/b:mubo.0000042901.74498.3a