BS in Mechanical Engineering
Mechanical Engineering Department
Lee McFarland, Frank Owen
This report provides a thorough description of the design of a hydraulic hand-operated press by mechanical engineering students at California Polytechnic State University, San Luis Obispo, California, for the Estrella Warbirds Museum in Paso Robles, California. It begins with research into hydraulic operations, a brief study of fluid power and incompressible fluids, and a look into existing products. Specified customer requirements stipulate the loading and general size constraints. As part of the project, a schedule is laid out following industry techniques. Brainstorming and decision matrices are utilized as well, conveying our design process. A basic structure is developed using strength of materials, beam bending theory, applied/allowable stress analysis, and material deflection. Additional features are developed based on a more specific investigation of customer requirements. This report not only covers the press design, but also documents its construction and testing of the structure. Cost analysis and material choices are relayed along with a complete set of engineering drawings for the manufacture of the press. Testing and failure modes are analyzed with an overall goal of customer safety in mind.