Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Estimation of Load on Control Lines of Ram Air Parachute Designed for Precise Delivery Using 9-Dof Model
View through CrossRef
Controlled Aerial Delivery System (CADS) consists of Ram Air Parachute (RAP) Airborne Guidance Unit (AGU) and useful payload. AGU pulls the control lines attached to the control surfaces of RAP and provides required maneuverability to the system. Estimation of load on control lines is essential for design and development of Airborne Guidance Unit (AGU). This paper presents the mathematical methods of the estimation of load on control lines the results of which are validated by experiments. The mathematical estimate of the load on control lines was carried out by developing a model similar to the aircraft control surface hinge moment estimation. The mathematical model was incorporated in 9DOF model to arrive at real time load estimation on control lines during inflation and subsequent steady flight condition. Experimental results are obtained during flight trials by using load cells on control lines and current sensor on power line of actuators. The mathematical results are in good agreement with the experimental results. The load on control lines are within 6 to 8% of the suspended load.
The Aeronautical Society of India
Title: Estimation of Load on Control Lines of Ram Air Parachute Designed for Precise Delivery Using 9-Dof Model
Description:
Controlled Aerial Delivery System (CADS) consists of Ram Air Parachute (RAP) Airborne Guidance Unit (AGU) and useful payload.
AGU pulls the control lines attached to the control surfaces of RAP and provides required maneuverability to the system.
Estimation of load on control lines is essential for design and development of Airborne Guidance Unit (AGU).
This paper presents the mathematical methods of the estimation of load on control lines the results of which are validated by experiments.
The mathematical estimate of the load on control lines was carried out by developing a model similar to the aircraft control surface hinge moment estimation.
The mathematical model was incorporated in 9DOF model to arrive at real time load estimation on control lines during inflation and subsequent steady flight condition.
Experimental results are obtained during flight trials by using load cells on control lines and current sensor on power line of actuators.
The mathematical results are in good agreement with the experimental results.
The load on control lines are within 6 to 8% of the suspended load.
Related Results
Design and Development of Miniature Measuring Instrument for Parachute Cords Dynamic Load for Stepless Parachute Opening
Design and Development of Miniature Measuring Instrument for Parachute Cords Dynamic Load for Stepless Parachute Opening
Spacecraft recovery technology is crucial in the field of aerospace, in which the parachute plays a key role in slowing down the descent speed of the spacecraft and realizing a smo...
Modeling of Aerodynamic Decelerator Inflation Using Fluid-Structure Interaction Strategies
Modeling of Aerodynamic Decelerator Inflation Using Fluid-Structure Interaction Strategies
Abstract
Fabric-based parachutes continue to be used as primary aerodynamic decelerators utilized in slowing aircraft, rockets, and landing vehicles. Parachutes dece...
Design and experiment of multidimensional and subnanometer stage driven by spatially distributed piezoelectric ceramics
Design and experiment of multidimensional and subnanometer stage driven by spatially distributed piezoelectric ceramics
Multidimensional microdriving stage is one of the key components to realize precision driving and high-precision positioning. To meet nanometer displacement and positioning in the ...
GENOME-WIDE IDENTIFICATION AND CHARACTERIZATION OF PLANT-SPECIFIC DOF TRANSCRIPTION FACTOR GENE FAMILY IN CASHEW (ANACARDIUM OCCIDENTALE)
GENOME-WIDE IDENTIFICATION AND CHARACTERIZATION OF PLANT-SPECIFIC DOF TRANSCRIPTION FACTOR GENE FAMILY IN CASHEW (ANACARDIUM OCCIDENTALE)
DNA binding with one-finger (Dof) protein belongs to the plant-specific transcription factors (PSTFs) gene family. These transcription factors have a variety of roles in many biolo...
Crane Load Moment System For Offshore Crane Operations
Crane Load Moment System For Offshore Crane Operations
Abstract
History has shown that dependency upon the crane operator to monitor loads and boom angle or load radius do not allow the margin necessary to perform the...
Analysis of the Spinning Motion and the Orientation Description Methods for 2-DOF RMs
Analysis of the Spinning Motion and the Orientation Description Methods for 2-DOF RMs
In this work, two degree-of-freedom rotational mechanisms (2-DOF RMs) also called 2-DOF pointing mechanisms are discussed systematically about their motion characteristic and orien...
Strategic Decision Making in the Digital Oil Field
Strategic Decision Making in the Digital Oil Field
Abstract
The Digital Oil Field (DOF) has been embraced at the operational level in the exploration and production industry. The DOF has initially been applied to tac...
Vehicle Load Estimation Using Recursive Total Least Squares for Rollover Detection
Vehicle Load Estimation Using Recursive Total Least Squares for Rollover Detection
<div class="section abstract"><div class="htmlview paragraph">This paper will describe the development of a load estimation algorithm that is used to estimate the load ...