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Mohammad Al-Araidah

Engineering lab / Interactive technical portfolio

Synthetic demonstration

Ergonomic workstation redesign

Change a component-tote transfer at A1 and inspect the design tradeoffs.

Meet the engineer
Factory and quality workspaces

Factory workspace

Data science & AI

All parts, suppliers, measurements and events below are fictional. Built to demonstrate engineering analysis and software design; no employer or customer engagement is implied.

Baseline lifting index

1.61

Displayed lifting index

1.61

Controlling weight limit

7.47 kg

Assumed handling time

18.0 s / bundle

Above the NIOSH LI = 1 design target. No safety approval or measured time is implied.

Synthetic task / editable assumptions

Redesign the transfer

Numeric changes apply on Enter or when leaving a field. Sliders update immediately. Editing either view creates a visitor redesign.

Gross load includes an assumed 2 kg tote. Destination hand height = bench + 15 cm; measure actual grip height for real work.

Access, environment and timing assumptions

SYN-ERGO-001 Rev A

Workstation geometry

Pickup and precise-placement hand positionsEach endpoint has its own ankle reference. Pickup H 45 cm, V 30 cm; placement H 35 cm, V 100 cm. Fixture bench 85 cm. This dimensioned schematic does not represent a worker or a carrying route.PickupH 45 cm · V 30 cmAsymmetry 45°Local ankle datum / floorPlacementH 35 cm · V 100 cmAsymmetry 0°Local ankle datum / floor

H measures horizontal hand distance from the local ankle midpoint. V measures hand height from the floor. These two endpoint views use separate stance references; they do not draw a carrying route or a worker.

Conceptual reach reference / 35 cm

Pickup: 45 cm · beyond design reference

Placement: 35 cm · within design reference

Reference only; no body-size percentile or universal reach limit. Access is clear; toe, knee and fixture clearance need a measured workstation review.

Scope and controlling endpoint

Assessment basis

Pickup controls this lift. Gross load 12 kg ÷ RWL 7.47 kg = LI 1.61.

short duration · required recovery 45.0 min · vertical travel 70.0 cm (effective D 70.0 cm). Both endpoints are assessed because placement requires significant control.

Frequency is a representative 15-minute task-window rate. It is separate from requested skids per week and does not create a production schedule.

NIOSH method and application limits

Hypothetical countermeasures

Compare design decisions

Present hands at 75 cm, shorten both horizontal distances, remove asymmetry and specify suitable handles. Assume 14 s per transfer; verify by work study.

Two 5 kg payloads in 2 kg totes replace one 10 kg payload: 7 kg gross each. Double the lift rate and transfer count; assume 12 s each. Lighter loads can add handling work.

Conceptual assisted transfer, assumed 24 s. RNLE does not rate this task; assess residual manual work and equipment suitability separately.

Baseline versus the displayed workstation
DesignControlling RWL / kgLifting indexPayload / bundleAssumed time / bundle
Baseline7.471.6110.0 kg18.0 s
Displayed baseline7.471.6110.0 kg18.0 s

0.00 lower lifting index than baseline. 0.0 s less assumed handling per equal-payload bundle.

A proposed standard-work revision is included in the export with measurement, timed-trial and review steps. It remains unverified and unapproved.

Download workstation methodDownload task assumptionsInspect A1 factory location
Multipliers, equations and model limits

RWL = 23 kg × HM × VM × DM × AM × FM × CM. LI = gross load / smaller endpoint RWL.

HM = 25/max(25,H); VM = 1 − 0.003|V−75|; DM = 0.82 + 4.5/max(25,D); AM = 1 − 0.0032A. FM comes from Table 5 using origin V and duration; values between supported rows are linearly interpolated. CM comes from Table 7 at each endpoint. Zero-frequency-factor regimes are excluded.

Endpoint factors; no RWL or LI for unsupported scope
EndpointHMVMDMAMFMCM
Pickup0.5560.8650.8840.8560.9400.950
Placement0.7140.9250.8841.0000.9401.000
  • Fictional geometry, loads, schedules and timings; no employee observation, injury prediction or workplace approval.
  • One task only; no Composite Lifting Index or multi-task/day exposure model. Frequency is an assumed representative 15-minute task rate, independent of weekly skid demand.
  • Both lift endpoints are checked because fixture placement needs significant control. FM uses origin hand height for both endpoints.
  • Scope assumes firm footing, suitable temperature/humidity, normal motion, unrestricted standing access and little other strenuous handling. Unsupported conditions receive no RWL or LI.
  • A lifting index at or below 1 does not establish safety for every worker or eliminate other ergonomic hazards.
  • The reach reference is a conceptual design target, not an anthropometric percentile, reach limit or clearance certification.
  • Times are editable work-study assumptions per reference bundle, not measured improvement, capacity, staffing or a simulation.
  • Mechanical assistance is not rated by subtracting support force from the load. Residual manual tasks need a separate assessment.
Factory planning scenario and reset
SYN-OPS-01 / Factory overview

factory-1.0 · Synthetic operation

Plan: 8 skids / 54.8 h assumed work. Baseline: 8 skids / 54.8 h.

This tab retains your scenario and demo reviews. Reset factory restores the original state.

One connected perspective

Physical requirements become data. Data becomes evidence. Evidence informs an operational decision. These demonstrations connect my manufacturing and quality foundation with the systems thinking used in enterprise transformation and product engineering.

Professional context

Explore my documented manufacturing experience, SAP readiness work and data and product development. The synthetic lab is separate from those professional records.

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