On-Board Total Oil Monitoring Sensor (TOMS) for Helicopter Transmissions and Engines

Period of Performance: 07/10/2000 - 07/09/2003


Phase 2 SBIR

Recipient Firm

Foster-miller, Inc.
350 Second Ave.
Waltham, MA 02451
Principal Investigator


Paratroopers have been among those in the Army at the highest risk of serious injuries. These injuries are due to excessive impact forces and moments, and are a great concern for military operations. The overall goal of this Phase II program is to reduce these injuries. Two avenues will be taken to achieve this goal by using a combined approach involving biomechanical modeling and laboratory testing. One is to provide guidelines of landing techniques for paratrooper training. The other is to reduce landing impact forces and moments through protective devices. In Phase I, a "rigid" finite element model was developed to simulate landings. The model predicted results of standup landings in agreement with test data. To better simulate the parachute landing fall, the model will be enhanced to separately represent the passive and active components of joint properties. A deformable model will also be developed for injury analysis at component/tissue level. Both models will be validated and will be used to predict possible injuries to paratroopers, to investigate the effects of various factors on model responses, to determine the critical landing velocities, to identify the optimal landing techniques under different landing conditions, and evaluate the protective roles of various devices. (p00623) Anticipated Benefits