P15681: Test Chamber Calibration Fluid Exhaust System
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Detailed Design

Table of Contents

Detailed Design Documents

Test Plans

The four subsystems (fluids, chamber, measurement, and controls) have each come up with general test plans to minimize the risks associated with the individual test plans.

In addition to the general test plans, each subsystem has more specific tests plans that include results of each test.


Test Plan Results

Model Drawings

All of the subsystems have drawings of their individual parts, and thanks to the hard work of Robert and Hayden, we have a full system model. All of the CAD drawings are available in the Design Document Folder, but below are a few examples of the work we have done.
This shows a top view of the chamber. Inside you can see where the nozzle will be placed in the new test block. In addition, you can also see the solenoid that is attached to the door on the right that will serve as part of the locking mechanism.

This shows a top view of the chamber. Inside you can see where the nozzle will be placed in the new test block. In addition, you can also see the solenoid that is attached to the door on the right that will serve as part of the locking mechanism.

This shows the probe portion of the measurement system that will interface with the chamber system and the test block to allow measurement of the spray angle to thousandth of an inch.

This shows the probe portion of the measurement system that will interface with the chamber system and the test block to allow measurement of the spray angle to thousandth of an inch.

This shows the fully assembled chamber with the pump that will be used to provide negative pressure and to fully purge the system to the left. If you click on the photo, you can see an animation of the doors being opened and the nozzle being removed.

This shows the fully assembled chamber with the pump that will be used to provide negative pressure and to fully purge the system to the left. If you click on the photo, you can see an animation of the doors being opened and the nozzle being removed.

Through the process of modeling each subsystem and then integrating the models we were able to come up with many issues that we had previously not considered. Fortunately, it also led to just as many solutions to problems.


Design Document Folder

Process Sheets

We have created a process sheet, and sometimes more than one, for each of the subsystems that we have. These process sheets were designed to give someone assembling the system a guide to the easiest way of doing so. An example of them is given below.
Above is an example of a process sheet for part of the test block that will be used for the GE90 nozzle.

Above is an example of a process sheet for part of the test block that will be used for the GE90 nozzle.




Process Sheet

Logic Flow

Our new Test Chamber involves many complex processes that will be automated. We are completing these processes with a variety of mechanisms, ranging from ball valves, to solenoids, to motors. All of these will be controlled through an Arduino that links to two different control panels, one on the work station and one in front of the chamber. The control logic that will be used to for the Arduino is pictured below.
Logic Flow

Logic Flow




Control Logic

Wiring Diagrams

The Arduino that we are using provides us with a way to control all of our individual electronic systems. Below is the wiring diagram that shows how each system will be wired into the Arduino to provide it with the prompts it needs to perform it's function.
Our current wiring schematic for some of our individual components. The rest of our drawings are available through the link below.

Our current wiring schematic for some of our individual components. The rest of our drawings are available through the link below.




Wiring Diagram

Risk Assessment

Below can be seen a graph of our risks compared to where we had planned our risk to be, as based on our current Risk Management document. As you can see, our current risk is not at where we were planning to be. The remaining risks from this semester will carry over to our risk management for next semester
Risk Assessment 12/06/2014

Risk Assessment 12/06/2014




Risk Management

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