A six degree-of-freedom thrust sensor for a labscale hybrid rocket

Wright, Andrew B.; Born, Traig; Strickland, Ryan

doi:10.1088/0957-0233/24/12/125104

Cited by 21 publications

(5 citation statements)

References 7 publications

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“…Where , , (i=1...n) as shown in equation (3,4,5) are the drag, side and lift forces and , and as shown in equation (6,7,8) are rolling, pitching and yawing moments.…”

Section: Measurement Structurementioning

confidence: 99%

“…The demand for accuracy in the measurement of multi-dimensional force is increasing with the time in global competition as it has wide applications in experimental work [3] and in real life such as humanoid robots [4], automotive industry [5]- [6] and aerospace industry [7]. The designed multi-point measurement model is capable of measuring the three coordinates of force/torque [8]- [9]- [10]- [11].…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

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Theoretical Investigation of Multidimensional Force/Moment Measurement Dynamometer

Anon¹,

Zongjin²,

Jun³

et al. 2020

International Journal of Mechanical Engineering and Technology (Ijmet)

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The precision in the measurement of three-dimensional force/moment is very necessary for the manufacturing process, for satellite, and in military equipment. The purpose of this research is to design a multi-dimensional multi-point force/moment (F/M) measurement MP-M dynamometer model based on three-axis piezoelectric sensors installation. The FEM simulation is performed using ANSYS software and mathematical analyses are carried out using derived equations. The measured FEA results are consistent with the applied standard force/moments. The error difference of FEM analysis is under 1%. The FEM simulations results are approximately 99-100% of the exerted axial force, vertical force and pitch moment respectively. The designed MP-M dynamometer model is capable to measure spatial force/moment accurately and simulation experiments are discussed.

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“…Where , , (i=1...n) as shown in equation (3,4,5) are the drag, side and lift forces and , and as shown in equation (6,7,8) are rolling, pitching and yawing moments.…”

Section: Measurement Structurementioning

confidence: 99%

Section: Introduction and Literature Reviewmentioning

confidence: 99%

Theoretical Investigation of Multidimensional Force/Moment Measurement Dynamometer

Anon¹,

Zongjin²,

Jun³

et al. 2020

International Journal of Mechanical Engineering and Technology (Ijmet)

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“…The cold flow tests were continued until the desired mass flow rate was reached and then the actual hot fire occurred. Wright et al [10] developed a laboratory scale, 6-DOF, hybrid-TVC system. The thrust stand proved to be stable during calibration tests.…”

Section: Introductionmentioning

confidence: 99%

“…In the work of Milos et al, the designed hexagon-shaped TVC platform can be used to test very low thrust systems, but considering the high thrust case it does not yield reliable results due to low strength of frame. Nowadays, solid propellant rocket engines have been replaced by hybrid systems [9][10][11]. In the Prince et al's [9] study "L" type ground test system was used to measure the thrust of a hybrid rocket.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a Thrust Vector Control (TVC) Test System

Ünal¹,

Yaman²,

Okur³

et al. 2018

Journal of Polytechnic

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Bu makaleye şu şekilde atıfta bulunabilirsiniz(To cite to this article): Ünal A., Yaman K., Okur E. ve Adlı M.A., "Design and implementation of a Thrust Vector Control (TVC) test system", Politeknik Dergisi, 21(2): 497-505, (2018).Erişim linki (To link to this article): http://dergipark.gov.tr/politeknik/archive DOI: 10.2339/politeknik.404009 Politeknik Dergisi, 2018; 21(1) : 497-505 Journal of Polytechnic, 2018; 21(2) Design and Implementation of a Thrust Vector Control (TVC) Test SystemABSTRACT The rocket engines are tested statically to evaluate the performance of engine based upon thrust produced. One of the most important parameters of the rocket engine static testing evaluation is to measure the thrust produced by the engine. The thrust produced is measured using a Thrust Vector Control (TVC) test system which is a structural element equipped with load cells. In this study, a load sensor system was designed to measure the propulsion performance of a solid propellant rocket motor. The forces and moments of the rocket motor with respect to the six degrees of freedom of the test system were measured during firing. It is seen that the obtained experimental results and the analysis results are compatible with each other. The designed stand is capable of measuring axial thrust and lateral (misaligned) thrust components, and the rolling moment for rocket motors producing axial thrust up to 50 [kN].

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“…Ranganath et al have developed a new non-singular structure version of the Stewart platform six-dimensional force sensor [4]. In addition, Kerr has reported the use of elastic legs as a sixdimensional force sensor [5], while Wright has invented a six degree-of-freedom thrust sensor for a lab-scale hybrid rocket [6]. Gao et al have utilized elastic ball joints instead of spherical joints to create a Stewart parallel structure for micromeasurement applications; this innovation has allowed miniaturisation of the parallel mechanism structure sensor [7,8].…”

Section: Introductionmentioning

confidence: 99%

Measurement model and calibration experiment of over-constrained parallel six-dimensional force sensor based on stiffness characteristics analysis

Zhi

Zhao

et al. 2017

Meas. Sci. Technol.

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An over-constrained, parallel six-dimensional force sensor has various advantages, including its ability to bear heavy loads and provide redundant force measurement information. These advantages render the sensor valuable in important applications in the field of aerospace (space docking tests, etc). The stiffness of each component in the over-constrained structure has a considerable influence on the internal force distribution of the structure. Thus, the measurement model changes when the measurement branches of the sensor are under tensile or compressive force. This study establishes a general measurement model for an over-constrained parallel six-dimensional force sensor considering the different branch tensions and compression stiffness values. Numerical calculations and analyses are performed using practical examples. Based on the parallel mechanism, an over-constrained, orthogonal structure is proposed for a six-dimensional force sensor. Hence, a prototype is designed and developed, and a calibration experiment is conducted. The measurement accuracy of the sensor is improved based on the measurement model under different branch tensions and compression stiffness values. Moreover, the largest class I error is reduced from 5.81 to 2.23% full scale (FS), and the largest class II error is reduced from 3.425 to 1.871% FS.

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A six degree-of-freedom thrust sensor for a labscale hybrid rocket

Cited by 21 publications

References 7 publications

Theoretical Investigation of Multidimensional Force/Moment Measurement Dynamometer

Theoretical Investigation of Multidimensional Force/Moment Measurement Dynamometer

Design and Implementation of a Thrust Vector Control (TVC) Test System

Measurement model and calibration experiment of over-constrained parallel six-dimensional force sensor based on stiffness characteristics analysis

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