DELMIA - Activity Analysis

Module 41Preparing the Working Environment2Creating a Manikin and Workspace3Using the Human Measurements Editor Performing Human Activity AnalysisPerforming Human Posture AnalysisTask Simulation Scenarios456Performing Human Activity Analysis

Copyright DASSAULT SYSTEMES 2002

Performing Human Activity AnalysisOverview Human activity analysis focuses specifically on examining how a human will interact with objects in a working environment and analysis the following factors:

Lifting Lowering Pushing Pulling Carrying

Human activity analysis uses the NIOSH 1981/1991 and Snook and Ciriello equations to measure the effects of the above activities to fully optimize task performance. With this knowledge, you can design scenarios using the results of these analyses to set ideal action limits, weight limits, and lifting or lowering requirements. Benefits include accurately predicting human performance, ensuring conformance to health and safety standards, and maximizing human comfort and safety.

NOTE: Ergonomic analyses can be very useful for guidelines. However, they should be used wisely. Where possible, contact an ergonomist or human factors specialist to help in making decision with regard to results.

Objectives You will learn how to perform a Rapid Upper Limb Assessment (RULA) You will learn how to perform a Lift-Lower Postural Analysis You will learn how to perform a Push-Pull Analysis You will learn how to perform a Carry Postural Analysis You will learn about Biomechanics Single Action Analysis4


Workbenches and Toolbars Used in this Module Inst.


Performing Human Activity Analysis

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Performing Human Activity Analysis Performing a Rapid Upper Limb Assessment Performing a Rapid Upper Limb AssessmentRapid Upper Limb Assessment (RULA) is a method for analyzing risk factors to the upper extremities of the manikin, or human in the actual physical environment. The RULA analysis measures the following risks factors:

Number of movementsStatic muscle workForceWorking PostureTime worked without a break

After measuring these risk factors, a final score is provided in the form of a number between 1 and 7 indicating the following:

1 and 2 (Green) this score indicates that the posture is acceptable if it is not maintained or repeated for long periods of time.3 and 4 (Yellow) this score indicates that further investigation is needed and changes may be required.5 and 6 (Orange) this score indicates that investigation and changes are required soon.7 (Red) this score indicates that investigation and changes are required immediately.

In this section you will learn how to perform a RULA analysis and how to make the necessary changes suggested by the analysis score.4


Performing Human Activity Analysis Performing a Rapid Upper Limb AssessmentPerforming a Rapid Upper Limb Assessment Procedure 4


Performing Human Activity Analysis Performing a Rapid Upper Limb AssessmentPerforming a Rapid Upper Limb Assessment Procedure 4Posture set this as appropriate.Repeat Frequency this is the task frequency. Other options select these as appropriate. Setting these options may affect the final score. Load specifies the weight of the manipulated object. The Details section provides specific results for each upper limb segment of the manikin: Upper Arm this measures shoulder elevation, arm abduction and rotation. Forearm this measures arm rotation. Wrist this measures wrist deviation. Wrist Twist this measures wrist twist. Neck this measures neck twist and neck side-bending. Trunk this measures trunk twist and trunk side-bending. Each of the parameters to the right can be edited by clicking the + button: Auto (No or Yes) specifies whether to use parameters defined in the RULA Parameters field. Yes forces RULA to consider that the segment IS at the specified state regardless of the manikin posture. No forces RULA to consider that the segment is NOT at the specified state regardless of the manikin posture.


Performing Human Activity Analysis Performing a Rapid Upper Limb AssessmentPerforming a Rapid Upper Limb Assessment Procedure 4You can display the color assessments on the manikin itself by selecting RULA in the Analysis field.This option allows you to see color analysis of the manikin without opening the RULA analysis dialog box. You can choose which colors to display in the Show Colors field. You can also choose whether to color segments or surfaces of the manikin in the Elements to Color field.You can choose a General coloring scheme, which displays 2 body segment groups, or a Detailed coloring scheme, which displays individual segments.


Performing Human Activity AnalysisPerforming a Lift-Lower Postural AnalysisPerforming a Lift-Lower Postural AnalysisThe Lift-Lower Postural analysis provides a method for assessing risk factors associated with lifting and lowering physical objects. Like the RULA analysis, the Lift-Lower Postural analysis provides a final score serving as a guideline as to whether changes to the simulation are necessary for human safety reasons.

In this section you will learn how to perform a Lift-Lower Postural analysis and how to make the necessary changes suggested by the analysis score.

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Performing Human Activity AnalysisPerforming a Lift-Lower Postural AnalysisPerforming a Lift-Lower Postural Analysis Procedure 4Posture set this as necessary.Guideline set this to NIOSH 1991.1 lift every frequency of lift.Duration hours of work per day.


Performing Human Activity AnalysisPerforming a Push-Pull AnalysisPerforming a Push-Pull AnalysisThe Push-Pull analysis provides a method for assessing risk factors associated with pushing and pulling physical objects. Like the RULA analysis, the Push-Pull analysis provides a final score serving as a gauge as to whether changes to the simulation are necessary for human safety reasons.

In this section you will learn how to perform a Push-Pull analysis and how to make the necessary changes suggested by the analysis score.

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Performing Human Activity AnalysisPerforming a Push-Pull AnalysisPerforming a Push-Pull Analysis Procedure 4Guideline set this to Snook & Ciriello 1991.1 push every frequency of push.Distance of push how far in length.Distance of pull how far in length. Population sample percentage of the population to perform task safely. Select 90th, 75th, or 50th. Score provides initial force and sustained force values.


Performing Human Activity AnalysisPerforming a Carry AnalysisPerforming a Carry AnalysisThe Carry analysis provides a method for assessing risk factors associated with carrying physical objects. Like the RULA analysis, the Carry analysis provides a final score serving as a gauge as to whether changes to the simulation are necessary for human safety reasons.

In this section you will learn how to perform a Carry analysis and how to make the necessary changes suggested by the analysis score.

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Performing Human Activity AnalysisPerforming a Carry AnalysisPerforming a Carry Analysis Procedure 4Guideline set this to Snook & Ciriello 1991.1 carry every frequency of carry.Distance of carry how far in length.Population sample percentage of the population to perform task safely. Select 90th, 75th, or 50th. Score provides maximum acceptable weight values.


Performing Human Activity AnalysisPerforming a Biomechanics Single Action AnalysisPerforming a Biomechanics Single Action AnalysisThe Biomechanics Single Action analysis provides a method for assessing risk factors associated with the following biomechanical data:L4-L5 Spine Limits evaluates posture to determine if it exceeds recommended joint shear and compression limits as recommended by NIOSHJoint Moment Strength evaluates percentage of worker population that cannot perform a taskReaction Forces and Moments evaluates reaction forces and orthopedic moments for proximal and distal segmentsSegment Positions evaluates position, angle, center of gravity, and length of segments

Like the RULA analysis, the Biomechanical Single Action analysis provides a final score serving as a gauge as to whether changes to the simulation are necessary for human safety reasons. In this section you will learn how to perform a Biomechanical Single Action analysis and how to make the necessary changes suggested by the analysis score.

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Performing Human Activity AnalysisPerforming a Biomechanics Single Action AnalysisPerforming a Biomechanics Single Action Analysis Procedure 4This tool calculates and outputs information regarding lumbar spinal loads (abdominal force, abdominal pressure, and body movements). It also measures the forces and moments on the manikin joints.

Forces, or loads, acting on the manikins hands are measured and represent the loads of carrying, pushing, lifting, lowering, and pulling operations, depending on the chosen scenario.

Depending on which tab you display, you will see the following dialog boxes and their representative values.


Performing Human Activity AnalysisPerforming a Biomechanics Single Action AnalysisPerforming a Biomechanics Single Action Analysis Procedure 4Summary TabL4-L5 Spine Limit Tab


Performing Human Activity AnalysisPerforming a Biomechanics Single Action AnalysisPerforming a Biomechanics Single Action Analysis Procedure 4Joint Moment Strength Data Tab List of ValuesJoint Moment Strength Data Tab Chart


Performing Human Activity AnalysisPerforming a Biomechanics Single Action AnalysisPerforming a Biomechanics Single Action Analysis Procedure 4Reaction Forces and Moments TabSegment Positions Tab


Human Activity Analysis Exercise


Exercise Human Activity AnalysisScope: You will use the Human Activity Analysis tools to accomplish various tasks. Conditions: V5 and Human Builder workbench must be open.

In this exercise you will: Perform a RULA analysis Perform a Lift-Lower Postural analysis Perform a Push-Pull analysis Perform a Carry Postural analysis Perform a Biomechanics Single Action analysis


Do It Yourself


Performing Human Activity Analysis SummaryModule SummaryIn this module you learned how to perform human activity analyses to measure the effects of the above activities to fully optimize task performance.

Coming Up You will learn how to perform a human posture analysis. 4


Instructor Notes:Instructor Notes: Instructor Notes:Highlight the key functions that will be used. Speak to some of the other functions especially the basic V5 navigation functions. Instructor Notes: Instructor Notes: Lesson Plan1. Instructor demonstration of how to access and configure Options. 2. Discussion regarding key options and why they are set.3. Practice exercise preparation for project

Instructor Notes: Instructor Notes: Depending on the sophistication of the audience, it is suggested that the instructor demonstrate, and speak to, key options relevant to DPM Assembly.Instructor Notes: Depending on the sophistication of the audience, it is suggested that the instructor demonstrate, and speak to, key options relevant to DPM Assembly.Instructor Notes: Depending on the sophistication of the audience, it is suggested that the instructor demonstrate, and speak to, key options relevant to DPM Assembly.Instructor Notes: Lesson Plan1. Instructor demonstration of how to access and configure Options. 2. Discussion regarding key options and why they are set.3. Practice exercise preparation for project

Instructor Notes: Instructor Notes: Depending on the sophistication of the audience, it is suggested that the instructor demonstrate, and speak to, key options relevant to DPM Assembly.Instructor Notes: Lesson Plan1. Instructor demonstration of how to access and configure Options. 2. Discussion regarding key options and why they are set.3. Practice exercise preparation for project



Instructor Notes: Instructor Notes: Depending on the sophistication of the audience, it is suggested that the instructor demonstrate, and speak to, key options relevant to DPM Assembly.Instructor Notes: Depending on the sophistication of the audience, it is suggested that the instructor demonstrate, and speak to, key options relevant to DPM Assembly.Instructor Notes: Depending on the sophistication of the audience, it is suggested that the instructor demonstrate, and speak to, key options relevant to DPM Assembly.Instructor Notes: Depending on the sophistication of the audience, it is suggested that the instructor demonstrate, and speak to, key options relevant to DPM Assembly.Instructor Notes: Exercise overview Used for any exercise except simple practice of skilletInstructor Notes:

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DELMIA - Activity Analysis