2011

Soft Clashing
Project models can include the dynamic representation of temporary items, such as work packages, ships, cranes,
installations, and so on.
You can use the Animator window to create animation scenes with these objects, so that they will be moving
around a project site, or change their size, and so on. It is possible that some moving objects could collide.
Setting up soft clashing enables the automated checking of this. When a soft clash session is run, at each step
of a scene sequence, Clash Detective is used to check if a clash has occurred. If it has, a time of when the clash
took place is logged, along with the event that caused the clash.
You can review the
Clash Results and, for example, reschedule objects' movement to eliminate such clashes.
To prepare for soft-clashing
1 Each object that you want to animate needs to be modelled in the project model covering the area or volume
required; for example, you can use semi-transparent blocks.
2 Animated scenes with the desired objects must be created by using the Animator window in Autodesk
Navisworks.
To link to Object Animation
1 In Autodesk Navisworks open the project model file, which contains the object animation scenes.
2 If the Animator window is not already open, click Home tab ➤ Tools panel ➤ Animator
.
3 Play the animation. Check that the animated objects are shown in the correct location, in the correct size,
and so on.
4 If the Clash Detective window is not already open, click Home tab ➤ Tools panel ➤ Clash Detective
.
5 Click the Select tab.
6 In the Left and Right panes, select the objects you want to test.
7 In the Link drop-down box, select the animation scene you want to link to, for example Scene1.
8 In the Step box, enter the Interval Size to use when looking for clashes in an animation.
9 Click the Start button. Clash Detective will check at each interval in the animation to see if there are any
clashes present. The number of found clashes is displayed in the Found box.
NOTE If the animation scene is large in size, running this type of clash test will invariably take more time to
complete than a normal clash run.
You can now review the found clashes.
Time-Based Soft Clashing
Project models can include the representation of temporary items, such as work packages, ships, cranes,
installations, and so on. If you want to use static objects, they must be added into the TimeLiner project, and
scheduled to appear and disappear at particular locations, over specific period of time.
Additionally, you can create dynamic animation scenes, so that the objects will be moving around a project site,
or change their size, and so on. Once created, such scenes must be linked to tasks in the TimeLiner project
schedule.
It is possible, that appearance or disappearance of static objects can obstruct the movement of animated objects
on site.
Time-Based and Soft Clash Testing | 445