Low-Cost Strain-Gauge Force-Sensing Sidestick for 6-DoF Flight Simulation: Design and Human-in-the-Loop Evaluation

Modern fly-by-wire (FBW) aircraft demand high-fidelity simulation systems for research and training, yet existing force-sensing solutions are often prohibitively expensive. This study presents the design, development, and validation of a low-cost, reconfigurable force-sensing sidestick. The system u...

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Main Authors: Patrik Rožić, Milan Vrdoljak, Karolina Krajček Nikolić, Jurica Ivošević
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/25/14/4476
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author Patrik Rožić
Milan Vrdoljak
Karolina Krajček Nikolić
Jurica Ivošević
author_facet Patrik Rožić
Milan Vrdoljak
Karolina Krajček Nikolić
Jurica Ivošević
author_sort Patrik Rožić
collection DOAJ
description Modern fly-by-wire (FBW) aircraft demand high-fidelity simulation systems for research and training, yet existing force-sensing solutions are often prohibitively expensive. This study presents the design, development, and validation of a low-cost, reconfigurable force-sensing sidestick. The system utilizes four strain-gauge load cells to capture pure pilot force inputs, integrated with a 6-DoF non-linear flight model. To evaluate its performance, a pitch-angle tracking task was conducted with 16 participants (pilots and non-pilots). Objective metrics revealed that the control strategy was a primary determinant of performance. Participants employing a proactive feedforward control strategy exhibited roughly an order of magnitude lower tracking-error variance than those relying on reactive corrections. Subjective assessments using the Cooper-Harper scale and NASA-TLX corroborated the objective data, confirming the sidestick’s ability to differentiate control techniques. This work demonstrates an open-source platform that makes high-fidelity FBW simulation accessible for academic research, pilot training, and human factors analysis at a fraction of the cost of commercial systems.
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institution Kabale University
issn 1424-8220
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publisher MDPI AG
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spelling doaj-art-72a20871e7844866a3bea917789c49eb2025-08-20T03:56:47ZengMDPI AGSensors1424-82202025-07-012514447610.3390/s25144476Low-Cost Strain-Gauge Force-Sensing Sidestick for 6-DoF Flight Simulation: Design and Human-in-the-Loop EvaluationPatrik Rožić0Milan Vrdoljak1Karolina Krajček Nikolić2Jurica Ivošević3University of Zagreb, Faculty of Transport and Traffic Sciences, 10000 Zagreb, CroatiaUniversity of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 10000 Zagreb, CroatiaUniversity of Zagreb, Faculty of Transport and Traffic Sciences, 10000 Zagreb, CroatiaUniversity of Zagreb, Faculty of Transport and Traffic Sciences, 10000 Zagreb, CroatiaModern fly-by-wire (FBW) aircraft demand high-fidelity simulation systems for research and training, yet existing force-sensing solutions are often prohibitively expensive. This study presents the design, development, and validation of a low-cost, reconfigurable force-sensing sidestick. The system utilizes four strain-gauge load cells to capture pure pilot force inputs, integrated with a 6-DoF non-linear flight model. To evaluate its performance, a pitch-angle tracking task was conducted with 16 participants (pilots and non-pilots). Objective metrics revealed that the control strategy was a primary determinant of performance. Participants employing a proactive feedforward control strategy exhibited roughly an order of magnitude lower tracking-error variance than those relying on reactive corrections. Subjective assessments using the Cooper-Harper scale and NASA-TLX corroborated the objective data, confirming the sidestick’s ability to differentiate control techniques. This work demonstrates an open-source platform that makes high-fidelity FBW simulation accessible for academic research, pilot training, and human factors analysis at a fraction of the cost of commercial systems.https://www.mdpi.com/1424-8220/25/14/4476force-sensing joystickflight simulatorfly-by-wire (FBW)human-in-the-loop (HITL)pitch-angle trackingstrain gauge
spellingShingle Patrik Rožić
Milan Vrdoljak
Karolina Krajček Nikolić
Jurica Ivošević
Low-Cost Strain-Gauge Force-Sensing Sidestick for 6-DoF Flight Simulation: Design and Human-in-the-Loop Evaluation
Sensors
force-sensing joystick
flight simulator
fly-by-wire (FBW)
human-in-the-loop (HITL)
pitch-angle tracking
strain gauge
title Low-Cost Strain-Gauge Force-Sensing Sidestick for 6-DoF Flight Simulation: Design and Human-in-the-Loop Evaluation
title_full Low-Cost Strain-Gauge Force-Sensing Sidestick for 6-DoF Flight Simulation: Design and Human-in-the-Loop Evaluation
title_fullStr Low-Cost Strain-Gauge Force-Sensing Sidestick for 6-DoF Flight Simulation: Design and Human-in-the-Loop Evaluation
title_full_unstemmed Low-Cost Strain-Gauge Force-Sensing Sidestick for 6-DoF Flight Simulation: Design and Human-in-the-Loop Evaluation
title_short Low-Cost Strain-Gauge Force-Sensing Sidestick for 6-DoF Flight Simulation: Design and Human-in-the-Loop Evaluation
title_sort low cost strain gauge force sensing sidestick for 6 dof flight simulation design and human in the loop evaluation
topic force-sensing joystick
flight simulator
fly-by-wire (FBW)
human-in-the-loop (HITL)
pitch-angle tracking
strain gauge
url https://www.mdpi.com/1424-8220/25/14/4476
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