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

Things to know

Job location

Remote

Work location

Job skill level

Any

Skill Level

Job rate

Open budget

Fixed-rate

Job type

Part-time

Job type

Job length

Under 1-month

Job duration

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

Payment not ready

India (03:25 am)

Posted

Active

Job activity

11 Applicants

0 interviews in progress

Similar jobs

3D CAD Modeling for Cold-Weather Mask V0 Prototype (Shell + Wing Cavities + Caps)

Remote - Posted
I need manufacturable CAD (STEP + STL) of a mask concept. All dimensions and function provided below
3D Modeling 3D CAD Translation Services 3D Product Modeling Prototype Design Engineering 3D Printing Design
View job

Transformacion Digital / Digital Transformation (Spanish required)

Remote - Posted
Note: This job contract requires a Spanish speaker for the project. Estamos buscando profesionales o firmas con experiencia para desarrollar un Estudio de Impacto de Tráfic...
2D to 3D Modeling
View job

CFD Analysis DESIGNER

Remote - Posted
1. The Consultant shall perform a Dynamic Process Simulation and a CFD analysis. 2. The study shall determine the minimum ramp rate required to maintain pressure
2D to 3D Modeling Design Engineering Services Engineering Design
View job

Mechanical Engineer Needed for Custom Pneumatic Industrial Machine Design (Confidential Project)

Remote - Posted
We are seeking an experienced Mechanical Engineer or Mechanical Designer to assist with the engineering design of a custom, pneumatic, industrial floor-treatment machine. This...
Mechanical Design Services Machine Design Mechanical Engineering Prototype Design Engineering
View job

need bumper 3d model optimized for manufacturing

Remote - Posted
need 3d model optimized for manufacturing, also need it nested for cnc plasma table will need welder drawings and a jig designed as well
2D to 3D Modeling
View job

hovercraft skirt design

Remote - Posted
looking for somebody to finish the CAD design and produce 2 d printable version
2D to 3D Modeling
View job
Apply now

How it works

Find hourly jobs

Find hourly jobs

Top rated experts are regularly hired for hourly jobs & ongoing client work.
Fixed-rate jobs

Fixed-rate jobs

Experts can browse & apply to fixed-rate work & quote on a flat-rate basis.
Design contests

Design contests

Experts build a reputation and earn prizes by participating in design challenges.

About Cad Crowd

4.9/5.0

(Our client satisfaction)

G2 2022

Spring high performer

168,417

global members

31,741

projects delivered to clients


Trusted by
US Army Corps of Engineers
Tiffany
BCG
Target
KPMG
Xprize

Find freelance & remote jobs

Your next big opportunity is just a click away. Create a free profile and start finding work tailored to your skills.