ANTENEH'S DESIGN 6- SHOCK LOAD

grabcad

This design aims to utilize the shock load that is created by the sudden contact shock when the rope pulls one segment into another to trigger a latching system stored inside one segment to push it into the other to satisfy permanent protrusion limitation of the challenge. The system follows a similar to airbag system but instead of airbag deployment a locking system comes out with a very smaller scale and simple version.Requirements fulfilment 1. Low mass with ability to generate a large load – The major components of this system are impact sensor which weighs about 20 grams, gas inflator weight maximum of 400 grams and an actuator weight about 450 grams giving total of mass under the 1Kg limit of the mass restriction which fulfils the weight requirement of “Both sides of the latching mechanism combined should weigh less than 1 kg (2.2lbs)” 2. Meets physical constraints – The size of this design perfectly fits in to the dimension constrains placed by the challenge “in an isosceles triangle extending from the plate that is 20.6cm (8.5”) wide by 14.9cm (5.9”) tall and out of plane depth of 5 cm (2”)” requirement. 3. Resistance to unintentional activation – To prevent false triggers like launch vibrations a switch is installed at the impact sensor that is switched on after launch. This will completely avoid possibility of unintentional deployment. 4. Feasibility of manufacturing and fabrication- This mechanism bases on existing technology used almost every mechatronic equipment especially in the automotive industry. 5. Quality and fidelity of the 3D models- All required CAD models are attached with rendering and deployment stages. 6. Validity and soundness of structural analysis- enough initial details of FBD that illustrates the structural analysis diagrams is attached in the data product. When one segment comes in contact with the other it creates a vibration or a shock which will be picked up by an impact sensor and sends the information to a gas inflator which can produce force that can push a piston. To prevent false triggers like launch vibrations a switch is installed at the impact sensor that is switched on after launch. The piston can act as a locking system once it has been pushed to the other segment which can have many options. Details of design soon to be submitted!