Design a telescopic hold‑open rod (HOR) with an integrated lock mechanism capable of supporting weight of cowl doors in the open position. Ended

About the job

Cowl‑door operation : Cowl door is raised using a separate actuation system, with one end of the HOR attached directly to the cowl.
Automatic locking : As the HOR extends, its internal locking mechanism shall automatically engage and secure the rod in the extended position.
Load support : Once locked, the HOR must support the full weight of the cowl door under continuous compressive load without deformation or failure.
Lock integrity under load : The lock mechanism must remain secure under compressive load. Unlocking shall not be possible while the HOR bears the cowl’s weight.
Controlled unlocking: Unlocking is permitted only through a deliberate user action: a combined rotation and axial translation along the HOR’s axis.
Visual Locking Indication: The HOR must feature a visual indicator that clearly distinguishes between locked and unlocked states using contrasting colors. For example:
Green to indicate the locked (safe) state.
Red to indicate the unlocked (unsafe) state.
Architectural Requirement: Proposed HOR needs to fit in a cylindrical envelope of Ø 60 mm, 1160 mm long and weigh less than 2.5 kg. See figure for space envelope
Mechanical Fatigue life: HOR needs to survive without deformation or failure a fatigue life of 4000 cycles. One duty cycle defined as following sequence. open – locked - loaded – unloaded - close
Cowl‑door operation : Cowl door is raised using a separate actuation system, with one end of the HOR attached directly to the cowl.
Automatic locking : As the HOR extends, its internal locking mechanism shall automatically engage and secure the rod in the extended position.
Load support : Once locked, the HOR must support the full weight of the cowl door under continuous compressive load without deformation or failure.
Lock integrity under load : The lock mechanism must remain secure under compressive load. Unlocking shall not be possible while the HOR bears the cowl’s weight.
Controlled unlocking: Unlocking is permitted only through a deliberate user action: a combined rotation and axial translation along the HOR’s axis.
Visual Locking Indication: The HOR must feature a visual indicator that clearly distinguishes between locked and unlocked states using contrasting colors. For example:
Green to indicate the locked (safe) state.
Red to indicate the unlocked (unsafe) state.
Architectural Requirement: Proposed HOR needs to fit in a cylindrical envelope of Ø 60 mm, 1160 mm long and weigh less than 2.5 kg. See figure for space envelope
Mechanical Fatigue life: HOR needs to survive without deformation or failure a fatigue life of 4000 cycles. One duty cycle defined as following sequence. open – locked - loaded – unloaded - close
Cowl‑door operation : Cowl door is raised using a separate actuation system, with one end of the HOR attached directly to the cowl.
Automatic locking : As the HOR extends, its internal locking mechanism shall automatically engage and secure the rod in the extended position.
Load support : Once locked, the HOR must support the full weight of the cowl door under continuous compressive load without... read more
Cowl‑door operation : Cowl door is raised using a separate actuation system, with one end of the HOR attached directly to the cowl.
Automatic locking : As the HOR extends, its internal locking mechanism shall automatically engage and secure the rod in the extended position.
Load support : Once locked, the HOR must support the full weight of the cowl door under continuous compressive load without deformation or failure.
Lock integrity under load : The lock mechanism must remain secure under compressive load. Unlocking shall not be possible while the HOR bears the cowl’s weight.
Controlled unlocking: Unlocking is permitted only through a deliberate user action: a combined rotation and axial translation along the HOR’s axis.
Visual Locking Indication: The HOR must feature a visual indicator that clearly distinguishes between locked and unlocked states using contrasting colors. For example:
Green to indicate the locked (safe) state.
Red to indicate the unlocked (unsafe) state.
Architectural Requirement: Proposed HOR needs to fit in a cylindrical envelope of Ø 60 mm, 1160 mm long and weigh less than 2.5 kg. See figure for space envelope
Mechanical Fatigue life: HOR needs to survive without deformation or failure a fatigue life of 4000 cycles. One duty cycle defined as following sequence. open – locked - loaded – unloaded - close read less

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Remote

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Any

Skill Level

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Open budget

Fixed-rate

Job type

Part-time

Job type

Job length

Under 1-month

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Areas of expertise

2D & 3D CAD Design 2D & 3D Engineering Design 2D & 3D Mechanical Design 3D Analysis and Design +1 more

Job categories

2D to 3D Modeling Prototype Design Engineering

About the client

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India (10:13 pm)

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