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Solution from Lattice Sizing Optimization to Additive Manufacturing

Lattice structures bear many desirable characteristics from design standpoints, such as stable designs with large network of structural members, desirable weight characteristics, custom mechanical behavior and porous nature that could facilitate bone and tissue growth on medical implants. To efficiently optimize the structure of lattices, we can use Tosca structure to vary the lattices thickness to reach certain design objectives. However, the radii in Tosca are associated with beams which are not optimal to have a smooth stress transition on connected nodes.

Customer Papers

Solution from Lattice Sizing Optimization to Additive Manufacturing
Topology Optimization of Missile and Aviation Components for AM Fabrication

Components within missile systems are vulnerable to performance degradation as a result of heat and vibrations generated by neighboring components. Conventional methods to alleviate this degradation include installing passive vibration-damping materials, adding material to shift resonance frequencies and adding heat sinks to removed unwanted heat. All of these approaches add parasitic weight to the system. Topology optimization methods are well established analysis tools that are used to determine an optimal material distribution of a design space, subject to a performance constraint, for a given set of loads and boundary conditions; making them ideal for tailoring the thermal and frequency response of missile components and associated structures without adding parasitic weight.

Customer Papers

Topology Optimization of Missile and Aviation Components for AM Fabrication
Modeling Dynamic Behavior of a Safety and Arming Mechanism

In the development of any new high explosive ammunition, often, the most intricate and problematic component is the fuzing system. Primary purpose of the fuze is to function with the bursting charge in a munition at a specified time and place. The fuze must include a Safety and Arming Device (SAD or S&A mechanism) to ensure that the ammunition may only switch into the armed state following exposure to firing forces and after reaching a safe distance from the muzzle. S&A mechanisms are often mechanical and operate using clockwork escapement mechanisms, similar to those found in wrist watches but in a less sophisticated manner.

Customer Papers

Modeling Dynamic Behavior of a Safety and Arming Mechanism
Hockey Stick Swing Analysis Using Finite Element Methods

This paper is related to using Finite Element Analysis to analyze the motion of a hockey stick hitting a puck. The end result is a determination of the optimal position to hit the puck during the stick swing on the stationary puck as well as the optimal swing pattern. The puck’s exit velocity and direction is obtained after the impact with the stick. The results will not only show the direction the ball will travel, but how far it will travel as well. The stresses on the hockey stick are also determined for each impact. For simulation purposes the puck was designed to have material properties similar to that of the official puck used in National Hockey League. The stick was also designed to have two rigid grips, to mimic two hands.

Customer Papers

Hockey Stick Swing Analysis Using Finite Element Methods

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