1 / 4

Air supply

Air supply. Concerns Instantaneous Flow rate Air muscle filling Stored Energy Size of supply and lines required Tank filling cost/convenience Solenoid orifice restriction Size of Solenoid required. Transient Muscle Filling. Main factor is orifice size in the solenoid and muscle size

abra
Download Presentation

Air supply

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Air supply • Concerns • Instantaneous Flow rate • Air muscle filling • Stored Energy • Size of supply and lines required • Tank filling cost/convenience • Solenoid orifice restriction • Size of Solenoid required

  2. Transient Muscle Filling • Main factor is orifice size in the solenoid and muscle size • Desire .1s fill time • Requires 4.3 in3/sec • Max flow through .1” orifice at 60psi is approximately 8 in3/sec • Quick fill time so that the muscle doesn’t lag behind the wearer

  3. Continuous supply • Low continuous air usage • 48ci 3000psi tank = 5600 steps or 9km • 15 Gal 150psi air compressor = 32km • Assuming 1 muscle event per 2 steps and .8m per step • Not a primary Concern due to being a tethered system

  4. Assisted Plantarflexion • Air muscle powers planterflexion • Elastomer passively causes dorsiflexion • Easier and slimmer packaging

More Related