Experimental investigation and performance analysis of inertia properties measurement for heavy truck cab

Zhu, Tianjun; Li, Fēi

doi:10.1177/1687814015618629

Cited by 9 publications

(9 citation statements)

References 10 publications

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“…The measurement time of the centroid is less than 15 min, and the measurement time of the moment of inertia is less than 20 min, which is a small amount of time when considering the applicability of the measurement system. In addition, the deviation of the centroid and moment of inertia is less than 2.5 mm, 1.5 mm, 20 kgm 2 , and 0.6 kgm 2 in the literature [9,15], respectively, and their accuracy of measurement is inferior to our measurement system. The cost of the measurement system is approximately $50,000 in the literature [25], and the assembly and test process are complicated and time consuming.…”

Section: Discussionmentioning

confidence: 99%

“…m is the total mass of the pico-satellite. According to the principle of moments [9], when the moment is considered from the ox -axis, the centroid of the pico-satellite in the y -direction can be expressed as: According to the principle of moments [9], when the moment is considered from the ox-axis, the centroid of the pico-satellite in the y-direction can be expressed as:…”

Section: Principles Of Measurement Of Mass Characteristicsmentioning

confidence: 99%

“…According to the parallel axis theorem [9,26], when the origin coordinates are located at the centroid, the moments of inertia of the pico-satellite can be expressed as:…”

Section: Test Principle For Determining the Moment Of Inertiamentioning

confidence: 99%

“…The validity of the algorithms was proved via comparing simulation and on-orbit data. Zhu [9] experimentally investigated the inertia characteristics measurements for vehicles and proposed an error analysis method. The results show that the method has a high accuracy for measuring the inertia parameters of vehicles.…”

Section: Introductionmentioning

confidence: 99%

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Novel Measurement Method for Determining Mass Characteristics of Pico-Satellites

2018

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Abstract:The centroid and moment of inertia directly affect the dynamic characteristics of aircraft, and accurate mass characteristic measurements are crucial to adequately control aircraft attitude. This paper proposes a new measurement method for determining aircraft mass characteristics that can improve measurement precision when used in regard to pico-satellites. The measurement system is designed according to the principles of three-point measure and constant torque. The feasibility of the test method of this study for determining the mass characteristics is proved by using a dynamic simulation and an experimental analysis method. Through a number of standard workpiece tests, the deviation of the measurement system and effective compensation methods of the mass characteristics are obtained. The measurement system and compensation methods are applied to measure the mass characteristics of a pico-satellite, which can be detected by only one time clamping. The measurement system proposed herein can effectively improve measurement precision, as it was found that the accuracy of the centroid and the moment of inertia of the pico-satellite are less than 1 mm and 1.5 × 10 −2 kgm 2 , respectively. The proposed measurement system also has many advantages, such as a simple operation, high efficiency, small volume, and low cost.

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Section: Discussionmentioning

confidence: 99%

Section: Principles Of Measurement Of Mass Characteristicsmentioning

confidence: 99%

“…According to the parallel axis theorem [9,26], when the origin coordinates are located at the centroid, the moments of inertia of the pico-satellite can be expressed as:…”

Section: Test Principle For Determining the Moment Of Inertiamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel Measurement Method for Determining Mass Characteristics of Pico-Satellites

2018

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“…Large engineering objects, for example, vehicles, are typically investigated based on an approach where they are hung from four points [6,7] or placed on a frame with four load cells [8]. Similar experimental set-ups can be found in the literature, which are limited to three rods [9,10] or three load cells [11,12].…”

Section: Introductionmentioning

confidence: 99%

Accuracy Analysis of the Measurement of Centre of Gravity and Moment of Inertia with a Swing

et al. 2021

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Floating devices under wave and current loads are typically designed based on numerical methods followed by a validation with experimental investigations. This allows an independent check due to the comparison of two different modelling approaches based on different assumptions. At an early stage of the project, numerical simulations are based on theoretical (ideal) values of the centre of gravity (CG) and moment of inertia (MI). The building process of a scaled model results very often in a requested simplification of certain parts, which can influence the CG and also the MI of the scaled model. Knowing those discrepancies allows us to improve the comparability of both approaches but the measurement of those values is connected with either a higher uncertainty or a high level of effort. A significant improvement of such measurements can be reached by the deployment of a specific experimental set-up. This paper presents the classification of the newly designed swing with a high accuracy inertial inclinometer, which was verified by the marker-based motion capturing system. The achieved experiences are useful for the future use of the set-up as well as similar investigations. The comparison with the theoretical values for the swing as well as an example model showed very good agreements and a high accuracy of few millimetres for the CG and an error smaller 1% for MI.

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A theoretical and experimental disturbance analysis in a product of inertia measurement system

Fakhari

Shokrollahi

2017

Measurement

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Experimental investigation and performance analysis of inertia properties measurement for heavy truck cab

Cited by 9 publications

References 10 publications

Novel Measurement Method for Determining Mass Characteristics of Pico-Satellites

Novel Measurement Method for Determining Mass Characteristics of Pico-Satellites

Accuracy Analysis of the Measurement of Centre of Gravity and Moment of Inertia with a Swing

A theoretical and experimental disturbance analysis in a product of inertia measurement system

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