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Tutorials

Antagonistic Muscles

Ground Reaction Force

Hip Replacement

Muscle Recruitment

Muscle Relocation

Rehabilitation Machine

NeckSIM:Whiplash

Tutorials

The tutorials presented in this section together touch on almost every feature of LifeMOD™ to give the user exposure the the modeling methods and procedures used to create model with a wide range of complexity and application.

By selecting the TUTORIAL button on the LifeMOD™ panel, a special tutorial control panel is displayed. Figure 1 displays the function of the control panel. The option menu displays the selection of the specific example problem. The description button displays information of the specific example, application, and features addressed. The arrow buttons allow for stepping through the tutorial. The control panel brings up and fills in the various panels used to create the model.

Each step of the tutorial is documented in this section. The LifeMOD™ self-training method consists of stepping through each example problem while reviewing the background information for the specific example in this technical manual.

Figure 1: The automated tutorial control panel

Model Development

Create a human model from the model library

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Create a human model from anthropometric library

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Modify anthropometric measurement table

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Develop a partial body model

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Build non-base segments

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Manipulate the posture

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Multiple human models

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Joints

Use the Hybrid III crash dummy strength library

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Create passive/recording joints

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Create detailed force-based joints

Create force-based mechanical joint replacements

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Build non-base joints

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Soft Tissues

Create recording muscles

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Create Hill-based muscles

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Build individual non-base tissues

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Create ligament stabilizers

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Create tendons

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Modify the base tissue attachment locations

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Reassign tissue attachment points

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Implement soft tissue contact-based wrapping

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Implement soft tissue slide points

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Model Training

Train the model by applying Motion Capture data via motion agents

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Apply motion agents to a mechanical system (not the body)

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Use motion agents to adjust model starting configuration

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Use motion agents with motion relative to a moving reference frame

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Train model by applying individual motion agents

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Train model using a mechanical system as a driver

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Environment

Import external mechanical system from model library

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Import internal mechanical system from model library

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Build environments/systems w/ADAMS/View commands

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Create body/environment interface forces

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Develop foot/floor ground reaction forces

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Analysis

Apply initial conditions to the model

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Train joints via inverse dynamics

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Train muscles via inverse dynamics

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Use trained joints in a forward dynamics simulation

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Use trained muscles in forward dynamics simulation

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Equilibrate the model

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Run a passive simulation

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Perform a parameter variation study

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Compare human reactions to multiple cases of motion data

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Run a hybrid (passive/active) simulation

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Results

Animate the model with joint/muscle graphics scaling

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Plot joint reactions, muscle forces, interface forces, etc.

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