Study on image dynamic measuring of transmission shaft boot's profile

It’s very difficult to get high precision measuring result using contact torquemeter because of very low signal-to-noise ratio. To overcome this defect, a wireless torque measuring system is designed based on CC2500. This system uses strain gauge torque sensor to measure the surface principal stress of the transmission shaft, and get the maximum shearing stress, and then the torque that the transmission shaft bears. The weak output signal of torque sensor is magnified by the instrumentation amplifier AD623, and sent to the analog-to-digital convertor. These digital data are transmited to the portable receiving terminal by the wireless transceiver chip CC2500. The dynamic wireless torque measurement is realized by this system.

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A smart acoustic emission and mechanical impedance hybrid sensor with static force detecting and dynamic measuring capabilities

2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII) ◽

10.1109/transducers.2013.6626922 ◽

2013 ◽

Author(s):

Guo-Hua Feng ◽

Zhi-Wei Huang

Keyword(s):

Acoustic Emission ◽

Mechanical Impedance ◽

Static Force ◽

Dynamic Measuring

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Design and Development of Transmission and Braking Systems in Go-kart

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.35598 ◽

2021 ◽

Vol 9 (VI) ◽

pp. 2876-2888

Author(s):

Hamida Shakil Jamadar

Keyword(s):

Small Scale ◽

Design And Development ◽

Transmit Power ◽

Motor Sport ◽

Transmission Shaft ◽

Important System

We have completed this paper as per rulebook of kart racing competition. It involves 5 different departments which are Transmission, Roll cage, Brake, Steering, Wiring. This karting has no suspension and differential. It is generally recognized as small scale or economic way of motor sport. Transmission is the most important system in any vehicle. In go kart, there is no differential therefore we have to transmit power directly to shaft. Braking is a system which is used to stop transmitting power at instant. This involves stopping revolving transmission shaft by applying force on pedal.

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Determining the correlation between daytime and night-time road markings visibility

The Baltic Journal of Road and Bridge Engineering ◽

10.3846/bjrbe.2016.33 ◽

2016 ◽

Vol 11 (4) ◽

pp. 283-290 ◽

Cited By ~ 1

Author(s):

Dario Babić ◽

Anđelko Ščukanec ◽

Darko Babić

Keyword(s):

Dynamic Test ◽

Measuring Method ◽

Objective Evaluation ◽

Test Method ◽

Night Time ◽

Road Section ◽

Minimum Requirements ◽

Dynamic Measuring ◽

The Republic ◽

The Relationship

Road markings quality control implies conducting several different tests, of which the most significant are visibility tests comprising daytime and night-time visibility measurements by applying the static or the dynamic measuring method. Although the dynamic test method allows measuring the visibility along the entire road section and thus provides a more complete and objective evaluation of road markings quality compared to the static method, it does not measure daytime visibility, for which both the European and the national directives define the minimum requirements. The purpose of this paper is to examine the correlation between daytime and night-time visibility based on static measurements conducted on state roads in the Republic of Croatia. The correlation analysis determined that the strength of relationship between daytime and night-time visibility, is relatively weak. Despite being relatively weak, the relationship still exists, which was the reason for conducting a further analysis. In the analysis, a unique coefficient was obtained through the ratio of retroreflection value and daytime visibility value for all the measurements. The unique coefficient was basis for development of a model that will be able to calculate the daytime visibility based on the results of the dynamic measurements of road markings night-time visibility. The authors evaluated the model with a t-test and concluded that the accuracy of the model is statistically satisfactory.

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Model for Predicting Road Markings Service Life

The Baltic Journal of Road and Bridge Engineering ◽

10.7250/bjrbe.2019-14.447 ◽

2019 ◽

Vol 14 (3) ◽

pp. 341-359

Author(s):

Dario Babić ◽

Anđelko Ščukanec ◽

Darko Babić ◽

Mario Fiolić

Keyword(s):

Service Life ◽

Measuring Method ◽

Timely Manner ◽

Data Set ◽

Winter Maintenance ◽

The Road ◽

Annual Average Daily Traffic ◽

Dynamic Measuring ◽

Road Marking ◽

Life Prediction Model

Road markings provide drivers with the information necessary for their comfortable and safe journey. To achieve that, they must be visible in all driving conditions, which means that they have to be renewed and maintained in a timely manner. This research aims to develop a model for predicting the service life of paint, thermoplastic and agglomerate cold plastic road markings. The research comprised 5218.00 km (115 roads) of solvent-borne paint road markings, 579.00 km (30 roads) of thermoplastic and 4979.00 km (30 roads) of agglomerate cold plastic road markings. The retroreflectivity of road markings was measured two times (after renewal and after winter) using the dynamic measuring method. Service life prediction model was developed for each material based on factors such as initial retroreflectivity, road marking age and position, annual average daily traffic and winter maintenance activity of the road. Developed models were tested using a new data set, and all three models showed satisfactory accuracy. The application of the model enables road authorities to optimise road-marking maintenance activities, while at the same time, ensuring the level of visibility required by drivers.

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