7/30/2019 Compos 113

1/3

You can select advanced integration options in this dialog box.

To access the Advanced Motion Analysis Options dialog box, click Properties(MotionManager toolbar), and under Motion Analysis, click Advanced Options.

Integrator

Type

There are three types of integration methods you can select for interpolation

using the SolidWorks Motion solver:

GSTIFF (default) SI2_GSTIFF WSTIFF

Maximum

Iterations

(Default value is 25.) Specify the maximum number of times the numeric

integrator iterates in the search for a solution for a given time step. If the

program exceeds this limit, a convergence failure is recorded.

Initial

Integrator

Step Size

Enter the first integration step size used by the variable step integrator. The

initial integrator step size controls the speed at which the integration method

starts, and its initial accuracy. You can run the simulation more quickly insubsequent runs by increasing this value.

MinimumIntegrator

Step Size

Enter the lower bound of the integration time step. You can decrease thesimulation time by increasing this value.

MaximumIntegrator

Step Size

Enter the upper bound of the integration time step. This is important if theintegration method does not detect short-lived events such as impacts. Set this

value to be of the same order as the short-lived events. If you set this value toolarge, some events can be ignored by the simulation.

Jacobian Re-

evaluation

Drag the slider to select how frequently the matrix is re-evaluated. More

frequent re-evaluation gives better the simulation accuracy at the cost of

simulation time. If the model does not change significantly over time, you canuse a smaller Jacobian re-evaluation option.

Parent topic:Motion Analysis

Check components for interference as they move. Learn more aboutDetecting Interference.

Parts and Frames tab

Select Parts to test. Select the components to check for interferences. Every selectedcomponent pair is checked unless the components belong to the same mechanism part.

Start Frame. Specify the first frame of the simulation to begin interference checking. End Frame. Specify the last frame of the simulation for interference checking.

7/30/2019 Compos 113

2/3

Increment. Specify the frame increment for interference checking. Find Now. Start the interference check.

Stop. Stop the interference check.

New Search. Clear the selected parts and start over.

Interference Output

Lists each intersection and shows its frame, time, part components, and volume. Selecting anintersection causes its frame to be displayed along with the intersection geometry and bounding

box.

Details. Select an interference from the output list, and click to show volume, area, and boundingbox values for the selected intersection.

Zoom to Selection . Zooms in on the selected interference's geometry.

You can use Motion Studies to check for interference in your design as the parts move. You can

check any of the components in your SolidWorks assembly model, regardless of whether a

component participates in the motion model.

Using the interference detection capability, you can find the following:

Interferences that occur between the selected components as the assemblies movethrough a specified range of motion.

The place where the first interference occurs between the selected components. Theassembly is moved to the position where the interference occurred.

To initiate an interference check between components:

1. Right-click the assembly in theMotionManagerdesign tree and select CheckInterference.

TheFind Interferences Over Timedialog box appears.

2. Click in the graphics screen and select two or more components to appear under In Partsand Frames.

3. Set Start Frame to the motion frame to use as the starting position for the interferencecheck.

4. Set End Frame to the motion frame to use as the final position for the interferencecheck.

7/30/2019 Compos 113

3/3

5. Increment sets the increment between frames checked. For example, setting theincrement to 2 checks every other frame, starting at the frame set in Start Frame.

6. Select Find Now to start the interference check.The list at the bottom displays detected interferences. The frame, simulation time, parts

that cause the interference, and the volume of the interference detected are listed.Selecting the Index number for an interference enables the Details and Zoom to

Selection buttons:

ClickDetails to display more information about the interference. Click to zoom in on the location of the interference.

7. If necessary, clickStop to stop the check.8. To clear all selections and select new components to check, clickNew Search.