1、Motion Simulation,CAE Application: Motion Simulation,Motion Simulation is a software application used for predictive engineering. You use it to predict the behavior of a mechanism before the mechanism is produced in the real world. Motion Simulation is a Computer Aided Engineering (CAE) software who
2、se application is used to model and analyze the motion of moving parts within a mechanism.,Example1,Motion Simulation is directed at solving problems within the realm of mechanics of rigid bodies (for example, statics and dynamics). Motion Simulation duplicates a master assembly model and brings it
3、to life in what can be a number of different motion simulations, without altering the master assembly. Once the optimum motion simulation has been established, the master assembly model can be updated to reflect the new optimum design.,Example2,Motion Simulation can analyze a mechanism for interfere
4、nces, travel, velocities, accelerations, reactive forces and motion, torques, and so on. The results of a Motion Simulation analysis will often indicate a need for design changes in part geometry (lengthen/shorten arm elements, alter cam shape, adjust gear ratios, and so on), or part material (light
5、er, heavier, harder, and so on).,Model Preparation - Master Model Dimensions,Motion Simulation can analyze a mechanism for interferences, travel, velocities, accelerations, reactive forces and motion, torques, and so on. Indicated design changes can then be applied to the simulation duplicate of the
6、 master assembly model and reanalyzed. Once the optimum motion simulation is determined, the design changes can then be incorporated into the master assembly.,Motion Preference,Create Motion Simulation,Step 1: Create links You create links to represent moving parts within the mechanism.A link is a m
7、echanical feature that represents a rigid body. When you create a link, you specify the geometry that defines that link. You must include in a link any part of your model that you want to move. In some cases, you will define geometry as a link even if that geometry is not intended to move.,The steps
8、 of Motion Simulation,Step 2: Create joints You create a joint to constrain a links movement. In some cases, you may also create other constraining features, such as springs, dampers, bushings and/or contacts. Step 3: Define a motion driver Motion drivers set the mechanism into motion. Each joint de
9、finition will,The steps of Motion Simulation,Start - All Applications - Motion Simulation,Motion Navigator,Change the Work Layer to a new and unique unused layer,Motion Simulation architecture,Motion Simulation toolbars,Link,Modeling - Preferences - Modeling,If the modelings preference isnt defined
10、and the designer dont know it , the system offers the designer a series of values.,Dynamic analysis and static analysis of reaction forces cannot be performed on mechanisms containing links without mass. Links without mass include links containing wireframe objects and/or sheet bodies in which no ma
11、ss properties were explicitly defined.Mass properties are optional factors for consideration during motion analysis. Although mass properties can be ignored when reaction forces are of no interest, mass properties must be considered when reaction forces are of interest, or when you are performing a
12、dynamic analysis.,Tool - Material properties,The designer can define the material properties of the modeling.,Analysis - Units lb-in - Units Converter,Joint,Articulation: A displacement-based form of motion in which a step size is specified along with the number of steps the mechanism is to take.Animation: A time-based form of motion in which the mechanism is directed to move for a specific period of time, and analyzed a specific number of times during that period.,Set Into Motion,
