Fluid handling equipment: A compilation

Devices and techniques used in fluid-handling and vacuum systems are described. Section 1 presents several articles on fluid lines and tubing. Section 2 describes a number of components such as valves, filters, and regulators. The last section contains descriptions of a number of innovative fluid-handling systems

Nodding feed antenna for communications with satellites in synchronous orbit

The design, fabrication, and performance of a parabolic, ground receiving antenna system with a feed that nods in one axis producing a maximum beam deviation 1.1 deg from boresight is described. The antenna design was: (1)to lower the weight (and the subsequent cost) of the supporting structure and the actuator motors for a tracking antenna by moving just the feed; (2) to use a manual tracking system eliminating the need for expensive electronic controls or computers; (3) to provide for several hours of unattended operation; and (4)to permit operation of the antenna by unskilled personnel. Also described are some physical and orbital phenomenon that effect the operation or design of the antenna. One is the motion of a nearly geostationary satellite due to gravitational forces from the sun, the moon, and other stellar bodies. Others are the rotation of the nodding axis and the feed polarization as a function of the location of the station on the earth. A comparison of per unit cost was made for one unit and a quantity of 100

Duocel Metal Foam Display Cases

This Final Design Review (FDR) report outlines the senior design project that was conducted by a team of four mechanical engineering students at California Polytechnic State University-San Luis Obispo for ERG Materials and Aerospace Corporation. The goal of this project was to design displays that showcase the properties of ERG’s Duocel® foam at tradeshows and client meetings. To better understand the needs of our sponsor, the team researched Duocel®’s capabilities, related technologies, and relevant standards and regulations. With this information, we further defined the problem by creating a problem statement and a set of engineering specifications through a Quality Function Deployment (QFD) process. The first step we took in tackling our design challenge was to determine which properties of the Duocel® foam would be suitable for table-top displays and be most beneficial to our sponsor. It was found that the thermal and fluid flow properties of the foam were most important to our sponsor. Though a series of ideation and idea refinement processes the team designed a Flow Control Display and a Thermal Conductivity Display. The Flow Control Display demonstrates the varying flow resistance of different porosity Duocel® foams using a manual air-pump system. The Thermal Conductivity Display is comprised of heating and cooling elements that demonstrate the heat dissipation ability of Duocel® foam. To verify the feasibility of our designs, we built concept prototypes. With sponsor approval, the team moved forward with the Flow Control Display and redesign the Thermal Conductivity Display. The team created detailed designs for both displays, complete with engineering drawings and wiring diagrams. Additionally, manufacturing plans, testing procedures, and structural prototypes were developed for each design. Confirmation prototypes were manufactured based on the final designs on staggered timelines. First, the Flow Control Display was assembled and tested. The test results revealed that this display did not function as intended. The team proceeded to troubleshoot the display and determined that the functionality issues were a result of insufficient velocity of air flow. Next, the Thermal Conductivity Display was manufactured and calibrated. Once it was satisfactorily assembled, the display was tested and met all the engineering specifications identified at the beginning of the project. This document contains the research, ideation processes, design decisions, design outcomes, manufacturing processes, test results, and project management associated with this senior project

Lunar material transport vehicle

The proposed vehicle, the Lunar Material Transport Vehicle (LMTV), has a mission objective of efficient lunar soil material transport. The LMTV was designed to meet a required set of performance specifications while operating under a given set of constraints. The LMTV is essentially an articulated steering, double-ended dump truck. The vehicle moves on four wheels and has two identical chassis halves. Each half consists of a chassis frame, a material bucket, two wheels with integral curvilinear synchronous motors, a fuel cell and battery arrangement, an electromechanically actuated dumping mechanism, and a powerful microprocessor. The vehicle, as designed, is capable of transporting up to 200 cu ft of material over a one mile round trip per hour. The LMTV is capable of being operated from a variety of sources. The vehicle has been designed as simply as possible with attention also given to secondary usage of components

Integrated Advanced Microwave Sounding Unit-A (AMSU-A): METSAT A2 Signal Processor Engineering Test Report (P/N: 1331120-2, S/N: F02)

This is the METSAT A2 Signal Processor Engineering Test Report (P/N 1331120-2, S/N F02 for the Integrated Advanced Microwave Sounding Unit-A (AMSL)-A)

Integrated Advanced Microwave Sounding Unit-A (AMSU-A): Engineering Test Report: METSAT A2 Signal Processor (P/N 1331120-2, S/N F03) S/N 107

This report presents a description of the tests performed, and the test data, for the A2 METSAT Signal Processor Assembly PN: 1331120-2, S/N F03. The assembly was tested in accordance with AE-26754, "METSAT Signal Processor Scan Drive Test and Integration Procedure.

The 727 approach energy management system avionics specification (preliminary)

Hardware and software requirements for an Approach Energy Management System (AEMS) consisting of an airborne digital computer and cockpit displays are presented. The displays provide the pilot with a visual indication of when to manually operate the gear, flaps, and throttles during a delayed flap approach so as to reduce approach time, fuel consumption, and community noise. The AEMS is an independent system that does not interact with other navigation or control systems, and is compatible with manually flown or autopilot coupled approaches. Operational use of the AEMS requires a DME ground station colocated with the flight path reference

Integrated Advanced Microwave Sounding Unit-A (AMSU-A). Engineering Test Report: METSAT A2 Signal Processor (P/N 1331120-2, S/N F05)

This is the Engineering Test Report, METSAT A2 Signal Processor (P/N 1331120-2, S/N F05), S/N 109, for the Integrated Advanced Microwave Sounding Unit-A (AMSU-A)

Integrated Advanced Microwave Sounding Unit-A (AMSU-A). Engineering Test Report: METSAT A1 Signal Processor (P/N 1331670-2, S/N F03)

This report presents a description of tests performed, and the test data, for the A1 METSAT Signal Processor Assembly PN: 1331679-2, S/N F03. This assembly was tested in accordance with AE-26754, "METSAT Signal Processor Scan Drive Test and Integration Procedure." The objective is to demonstrate functionality of the signal processor prior to instrument integration

Integrated Advanced Microwave Sounding Unit-A (AMSU-A) METSAT A1 Signal Processor Engineering Test Report (P/N: 1331670-2, S/N: F01)

This is the METSAT A1 Signal Processor Engineering Test Report, P/N 1331670-2, S/N F01 for the Integrated Advanced Microwave Sounding Unit-A (AMSU-A)