Market analysis shows this is an opportune time to improve current methods for material handling. The objective of this design is to build a lightweight, efficient material mover for loads not exceeding 200 lbs, for large companies and rental customers. The text body will present a thorough market analysis and provide our general concept solutions. This also includes a patent search of various products in the market currently. The basic requirements of the design are to attain a vertical reach of 8-12 ft and a horizontal reach of 4-8 ft with a load of 200 lbs. This unit should be operated by only one person. The design of the lifting arm will be based on two degrees of freedom and be able to place objects over obstacles. It will be powered by a hydraulic piston and hydraulic rotary actuator. Casters and rollers attached at the base will provide necessary maneuvering to move the object. The telescopic arm, vertical column, and base chassis will be made of Aluminum to provide a lightweight design. The choice of Aluminum will be justified using equations and finite element analysis. Connections between each section will be listed with suitable parts with the maximum safety factor. Finite Element Analysis will be performed by ANSYS and COSMOSworks to analyze static stress, buckling tests, deformation analysis, and modal analysis for natural frequencies. Tipping analysis regarding center of gravity will also be discussed to ensure the equipment will not tip-over on its maximum and eccentric load. The hydraulic system to power the telescopic arm and lifting mechanism will be discussed and analyzed thoroughly in the report. The concept of wrist joint design and the selection of the hydraulic rotary actuator will also be discussed. The safety regulations presented by Occupational Safety and Health Administration will be listed to show all of the safety regulations that will be met with the material handler. The control units and safety sensors will be implemented to ensure the worst case scenario will not occur. The budget section will include the list of parts that were purchased. Also it will discuss the budget concerns and solutions to minimize the budget without compromising the design and safety.
material mover device, hydraulic prototype
Northeastern University, Department of Mechanical, Industrial and Manufacturing Engineering
Lam, Simon; McCormick, Dan; Muto, Andy; Nowitz, Dan; and Takach, Steve, "Material Handling Equipment" (2007). Capstone Design Program: Mechanical Engineering. Paper 75. http://hdl.handle.net/2047/d10011535
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