Dynamic Analysis of Shoulder-Fired Weapons
Abstract
A recoil analysis to assess several recoil mitigating technologies applied to shoulder-fired weapons such as a grenade launcher or shotgun has been conducted. Parameters such as weapon weight, recoil impulse, recoil velocity and recoil energy were identified as critical. A range of values were selected for evaluation. In order to monitor and assess the dynamics occurring during its cyclic motion, a mathematical model for a 12 Gauge weapon has been developed. The model defines each major component and the relative connectivity between them is defined in terms of kinematic joints. A Lagrangian methodology is utilized to formulate the rigid body dynamic equations of motion. Three commercial recoil reducing devices were evaluated in the model to determine their specific effect on recoil motion, both on the weapon and on the soldier firing the weapon. A full test program was conducted at the Armaments Research Laboratory (ARL) on a modified 12 Gauge shotgun to measure recoil control for each of the recoil devices. An additional model was formulated for this fixture. Comparisons between model and experimental test results were made. Further tests and evaluation include combinations of recoil devices. Documentation of sample model output is included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1993
- Accession Number
- ADP009073
Entities
People
- Philip D. Benzkofer
Organizations
- United States Army Armament Research, Development and Engineering Center