Using a plastic water hose not only affects water resources, but also affects people’s daily lives. Due to over bending or twisting during service times, plastic hoses tend to fold, buckle, or crack. The new developed spiral plastic hose can overcome the above problems, however, how to evaluate its properties is still an industry need. By using machine vision technology to analyze the spiral plastic hose quality such as the spring-back property is a good methodology which can facilitate the trust relationship between the industries and consumers. Three-dimensional machine vision technologies were used to examine five different kinds of plastic hoses, i.e. type A–E. At first, a testing platform is designed and the measuring algorithm is proposed to measure the inner radius of the bent plastic hose. By using image processing technology and the developmental program, the radius information of plastic hoses before and after spring-back are obtained for further analysis. According to experimental results based on the proposed inspection system, Type B plastic hoses behave with no-kink and its spring-back ratio is 3.457, which is the best of the plastic hoses. Plastic hose of Type D behaves kink situation and its spring-back ratio is 1.117 which is the worst. By comparing the experimental results to the manufacturers offering information, a good agreement is obtained. Therefore, this study provides an innovative inspection system to determine plastic hose quality.
{"title":"THREE-DIMENSIONAL MEASUREMENT OF SPRING-BACK CHARACTERISTICS FOR HELICAL PLASTIC HOSES USING COMPUTER VISION","authors":"A. Do, K. Lee, W. Chang, Rung-Ye Lin, Q. Hsu","doi":"10.2495/CMEM170121","DOIUrl":"https://doi.org/10.2495/CMEM170121","url":null,"abstract":"Using a plastic water hose not only affects water resources, but also affects people’s daily lives. Due to over bending or twisting during service times, plastic hoses tend to fold, buckle, or crack. The new developed spiral plastic hose can overcome the above problems, however, how to evaluate its properties is still an industry need. By using machine vision technology to analyze the spiral plastic hose quality such as the spring-back property is a good methodology which can facilitate the trust relationship between the industries and consumers. Three-dimensional machine vision technologies were used to examine five different kinds of plastic hoses, i.e. type A–E. At first, a testing platform is designed and the measuring algorithm is proposed to measure the inner radius of the bent plastic hose. By using image processing technology and the developmental program, the radius information of plastic hoses before and after spring-back are obtained for further analysis. According to experimental results based on the proposed inspection system, Type B plastic hoses behave with no-kink and its spring-back ratio is 3.457, which is the best of the plastic hoses. Plastic hose of Type D behaves kink situation and its spring-back ratio is 1.117 which is the worst. By comparing the experimental results to the manufacturers offering information, a good agreement is obtained. Therefore, this study provides an innovative inspection system to determine plastic hose quality.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"15 1","pages":"115-126"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75392426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT Track maintenance work is essential to maintaining the safe and stable operation of a railway system. In recent years, the realignment of track irregularity with wavelengths of approximately 5 m is required in order to reduce the Q-force and the track irregularity growth on the Tokaido Shinkansen. Tamping machines are generally used to realign track irregularities. But, the newest Type-09 tamping machine has a lower realignment performance for track irregularities of around 5 m in wavelength due to its capabilities when it comes to measuring chord length. Therefore, a new measuring system has been attached in the tamping machine in order to measure 3.6 m versine at the longitudinal level. Since a high-precision gyroscope is used, the measuring system is not influenced by the vibration of the tamping machine when in operation. Through repeatability testing it was confirmed that short wavelength track irregularities could be measured with high accuracy. The data measured by Dr Yellow (a track inspection car) was combined with the data taken from the gyroscope to propose a new algorithm for correcting 5 m chord versine track irregularities with better accuracy. Maintenance tests will be conducted to verify the results.
{"title":"IMPROVEMENT OF THE REALIGNMENT PERFORMANCE FOR SHORT WAVELENGTH TRACK IRREGULARITY ON A TAMPING MACHINE","authors":"T. Yada, Y. Soda, Y. Naganuma","doi":"10.2495/CMEM170071","DOIUrl":"https://doi.org/10.2495/CMEM170071","url":null,"abstract":"ABSTRACT Track maintenance work is essential to maintaining the safe and stable operation of a railway system. In recent years, the realignment of track irregularity with wavelengths of approximately 5 m is required in order to reduce the Q-force and the track irregularity growth on the Tokaido Shinkansen. Tamping machines are generally used to realign track irregularities. But, the newest Type-09 tamping machine has a lower realignment performance for track irregularities of around 5 m in wavelength due to its capabilities when it comes to measuring chord length. Therefore, a new measuring system has been attached in the tamping machine in order to measure 3.6 m versine at the longitudinal level. Since a high-precision gyroscope is used, the measuring system is not influenced by the vibration of the tamping machine when in operation. Through repeatability testing it was confirmed that short wavelength track irregularities could be measured with high accuracy. The data measured by Dr Yellow (a track inspection car) was combined with the data taken from the gyroscope to propose a new algorithm for correcting 5 m chord versine track irregularities with better accuracy. Maintenance tests will be conducted to verify the results.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"3 1","pages":"61-70"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88277029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Avramenko, O. Agafonova, J. Sorvari, H. Haario, Y. Avramenko
{"title":"FAST NUMERICAL MODELLING METHOD FOR WIND FLOW INVESTIGATION BASED ON DEPTH-AVERAGED EQUATIONS","authors":"A. Avramenko, O. Agafonova, J. Sorvari, H. Haario, Y. Avramenko","doi":"10.2495/CMEM170031","DOIUrl":"https://doi.org/10.2495/CMEM170031","url":null,"abstract":"","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"28 1","pages":"21-29"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83239484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, the experimental results of a multiblock column have been demonstrated by the harmonic and cyclic impulse movements of the base. The tests were performed on a shaking-table with one degree of freedom at the Materials Testing Laboratory “M. Salvati” of the Polytechnic University of Bari for the rigid and deformable foundation column. Through the use of 3D printing, a staircase prototype of 6 blocks along the stem plus the capstone was built, with a base-diameter ratio of 6.5. Geometric features represent a “standard” column belonging to the classical Doric order in the Mediterranean basin. The main aim of this paper was to study the influence of deformability of the foundation on the overall dynamics of the phenomenon in order to address operational solutions that reduce the seismic vulnerability of such structures that are technically and technologically compatible with the current archaeological culture.
{"title":"EXPERIMENTAL INVESTIGATION OF THE SEISMIC RESPONSE OF A MULTI-DRUM COLUMN","authors":"D. Foti, V. Vacca","doi":"10.2495/CMEM170021","DOIUrl":"https://doi.org/10.2495/CMEM170021","url":null,"abstract":"In this paper, the experimental results of a multiblock column have been demonstrated by the harmonic and cyclic impulse movements of the base. The tests were performed on a shaking-table with one degree of freedom at the Materials Testing Laboratory “M. Salvati” of the Polytechnic University of Bari for the rigid and deformable foundation column. Through the use of 3D printing, a staircase prototype of 6 blocks along the stem plus the capstone was built, with a base-diameter ratio of 6.5. Geometric features represent a “standard” column belonging to the classical Doric order in the Mediterranean basin. The main aim of this paper was to study the influence of deformability of the foundation on the overall dynamics of the phenomenon in order to address operational solutions that reduce the seismic vulnerability of such structures that are technically and technologically compatible with the current archaeological culture.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"14 3","pages":"11-19"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73296858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To investigate the variation regularity of refined flowing structure and flowing parameters of the working gas in pipe with varying cross-section, we numerically simulate the inner flow in the pipe using AUSM-up spatial model and LU-SGS implicit timing model, and study the influence of the Mach number on the flowing parameters. The conclusions are as follows: the structure of the inner flow is rather complicated that includes both shock wave and rarefaction wave, and there exists the overlapping phenomenon of the shock wave and the rarefaction wave, as well as the reflection of the rarefaction wave on the inner pipe wall. As the Mach number increases, the pressure at the outlet decreases whereas the temperature at the outlet ascends continuously.
{"title":"NUMERICAL STUDY ON THE INNER FLOW FIELD OF PIPES WITH VARYING CROSS-SECTIONS","authors":"Yanhui Jia, Zixue Guo","doi":"10.2495/CMEM170041","DOIUrl":"https://doi.org/10.2495/CMEM170041","url":null,"abstract":"To investigate the variation regularity of refined flowing structure and flowing parameters of the working gas in pipe with varying cross-section, we numerically simulate the inner flow in the pipe using AUSM-up spatial model and LU-SGS implicit timing model, and study the influence of the Mach number on the flowing parameters. The conclusions are as follows: the structure of the inner flow is rather complicated that includes both shock wave and rarefaction wave, and there exists the overlapping phenomenon of the shock wave and the rarefaction wave, as well as the reflection of the rarefaction wave on the inner pipe wall. As the Mach number increases, the pressure at the outlet decreases whereas the temperature at the outlet ascends continuously.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"34 1","pages":"31-36"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73417370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Chaloupecká, Z. Jaňour, R. Kellnerová, K. Jurčáková
The purpose of the study is to examine how vortices in flow influence dispersion of short-duration gas leakage (e.g. toxic gas leakage from chemical plants). A scale model of an idealized urban canopy typical for European cities was utilized. The model was composed of closed courtyards with pitched roofs placed equidistantly from each other. An approach flow angle to the model was parallel with the shorter side of the courtyards. Flow on the model was measured by Laser Doppler Anemometry. A short-duration ground-level point gas source was placed in the model. The gas leakage was simulated by ethane as a passive tracer. The gas was detected at various sampling positions within the model at pedestrian level by Fast Flame Ionisation Detector. To obtain statistically representative datasets, shortduration gas discharges were repeated under the same experimental setting about 400 times at each sampling place. From the datasets, puff characteristics (e.g. gas arrival time) were derived. Results of the flow measurements reveal channelling effect in a parallel street. In all transverse streets, recirculation vortices with vertical axes at corners of street intersections and circulation cells with horizontal axes can be spotted. The vortices in flow substantially influence puff characteristics. For example, on one hand the corner vortices seem to shorten the mean time at which gas arrives to the sampling place for some regions of the vortices. On the other hand, sampling positions near the centre of the vortices seem to be more isolated and gas therefore gets to them on an average later than to the neighbouring sampling positions. Moreover, relatively huge mean maximum concentrations detected on an average later (measured either from the release time or the cloud arrival time) than for the neighbouring sampling positions can be found in these areas.
{"title":"INFLUENCE OF FLOW ON PUFF CHARACTERISTICS","authors":"H. Chaloupecká, Z. Jaňour, R. Kellnerová, K. Jurčáková","doi":"10.2495/CMEM170051","DOIUrl":"https://doi.org/10.2495/CMEM170051","url":null,"abstract":"The purpose of the study is to examine how vortices in flow influence dispersion of short-duration gas leakage (e.g. toxic gas leakage from chemical plants). A scale model of an idealized urban canopy typical for European cities was utilized. The model was composed of closed courtyards with pitched roofs placed equidistantly from each other. An approach flow angle to the model was parallel with the shorter side of the courtyards. Flow on the model was measured by Laser Doppler Anemometry. A short-duration ground-level point gas source was placed in the model. The gas leakage was simulated by ethane as a passive tracer. The gas was detected at various sampling positions within the model at pedestrian level by Fast Flame Ionisation Detector. To obtain statistically representative datasets, shortduration gas discharges were repeated under the same experimental setting about 400 times at each sampling place. From the datasets, puff characteristics (e.g. gas arrival time) were derived. Results of the flow measurements reveal channelling effect in a parallel street. In all transverse streets, recirculation vortices with vertical axes at corners of street intersections and circulation cells with horizontal axes can be spotted. The vortices in flow substantially influence puff characteristics. For example, on one hand the corner vortices seem to shorten the mean time at which gas arrives to the sampling place for some regions of the vortices. On the other hand, sampling positions near the centre of the vortices seem to be more isolated and gas therefore gets to them on an average later than to the neighbouring sampling positions. Moreover, relatively huge mean maximum concentrations detected on an average later (measured either from the release time or the cloud arrival time) than for the neighbouring sampling positions can be found in these areas.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"2 1","pages":"37-48"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87811203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Taras Agryzkov, J. Oliver, L. Tortosa, José-Francisco Vicent
This work was partially supported by the Spanish Government, Ministerio de Economia y Competividad, which reference number is TIN2014-53855-P.
本研究得到了西班牙政府Ministerio de Economia y Competividad的部分支持，参考编号为TIN2014-53855-P。
{"title":"DIFFERENT TYPES OF GRAPHS TO MODEL A CITY","authors":"Taras Agryzkov, J. Oliver, L. Tortosa, José-Francisco Vicent","doi":"10.2495/CMEM170081","DOIUrl":"https://doi.org/10.2495/CMEM170081","url":null,"abstract":"This work was partially supported by the Spanish Government, Ministerio de Economia y Competividad, which reference number is TIN2014-53855-P.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"04 1","pages":"71-82"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86515564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the field of sheet metals forming, the press forming is executed as important method for mass production processing. It is reported that the plastic formability of Mg-alloy improves in the warm working. The warm deep drawing tests was carried out by using the 2 kinds of punch diameter, 30 mm and 50 mm. This paper describes about the optimum deep drawing conditions with forming temperature and lubricant in the magnesium AZ31B alloy and the flame retardant magnesium alloy AMX602. These Mg alloys are difficult to mold at room temperature. However, in forming temperature at 180°C–200°C, Limiting Drawing Ratio (LDR) of AZ31B became 2.65. The optimum forming temperature condition of AZ31B is 180°C–200°C. The value of LDR decreases at 200°C or more. LDR of retardant magnesium alloy AMX602 is also 2.65 at the temperature at 300°C–320°C. The optimum temperature conditions of retardant magnesium alloy AMX602 is assumed to be 300°C or more. After molding, the thickness decreases from the punch shoulder to the part around the sidewall. The magnesium alloys in thickness change is similar to the common deep drawing with the other materials. In AZ31B alloy and AMX602 alloy, the failure pattern is often occurred at sidewall area and punch-shoulder area respectively.
{"title":"DEEP DRAWING FORMABILITY OF THE MEASUREMENT OF MAGNESIUM SHEET METALS","authors":"Akihiro Minami, H. Sakamoto, Yasuo Marumo","doi":"10.2495/CMEM170011","DOIUrl":"https://doi.org/10.2495/CMEM170011","url":null,"abstract":"In the field of sheet metals forming, the press forming is executed as important method for mass production processing. It is reported that the plastic formability of Mg-alloy improves in the warm working. The warm deep drawing tests was carried out by using the 2 kinds of punch diameter, 30 mm and 50 mm. This paper describes about the optimum deep drawing conditions with forming temperature and lubricant in the magnesium AZ31B alloy and the flame retardant magnesium alloy AMX602. These Mg alloys are difficult to mold at room temperature. However, in forming temperature at 180°C–200°C, Limiting Drawing Ratio (LDR) of AZ31B became 2.65. The optimum forming temperature condition of AZ31B is 180°C–200°C. The value of LDR decreases at 200°C or more. LDR of retardant magnesium alloy AMX602 is also 2.65 at the temperature at 300°C–320°C. The optimum temperature conditions of retardant magnesium alloy AMX602 is assumed to be 300°C or more. After molding, the thickness decreases from the punch shoulder to the part around the sidewall. The magnesium alloys in thickness change is similar to the common deep drawing with the other materials. In AZ31B alloy and AMX602 alloy, the failure pattern is often occurred at sidewall area and punch-shoulder area respectively.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"1 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89700818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
For studying transient heat conduction problems in the micro-nano scale, the standard heat diffusion equation is no longer applicable, and the time-dependent Boltzmann transport equation (BTE) needs to be solved. Although mesh-based numerical methods such as the finite element method (FEM) and the finite volume method (FVM) are often employed to solve the BTE, the collocation meshfree method has special advantages since it does not require numerical integration. In this work, the collocation meshfree method and the discrete ordinate method (DOM) are implemented to discretize the spatial and angular domains, respectively, while the explicit finite difference method (FDM) is used for advancing in time. Such a method is used to solve the transient BTE for a square domain with prescribed temperature and adiabatic boundary conditions. Our results are consistent with transient heat transfer problems solved by FVM approach.
{"title":"TRANSIENT MICRO-NANO HEAT CONDUCTION ANALYSIS USING A COMBINATION OF THE FINITE DIFFERENCE METHOD, THE COLLOCATION MESHFREE METHOD AND THE DISCRETE ORDINATE METHOD","authors":"S. Zahiri, Jie Song, Hua Bao, Yongxing Shen","doi":"10.2495/CMEM170111","DOIUrl":"https://doi.org/10.2495/CMEM170111","url":null,"abstract":"For studying transient heat conduction problems in the micro-nano scale, the standard heat diffusion equation is no longer applicable, and the time-dependent Boltzmann transport equation (BTE) needs to be solved. Although mesh-based numerical methods such as the finite element method (FEM) and the finite volume method (FVM) are often employed to solve the BTE, the collocation meshfree method has special advantages since it does not require numerical integration. In this work, the collocation meshfree method and the discrete ordinate method (DOM) are implemented to discretize the spatial and angular domains, respectively, while the explicit finite difference method (FDM) is used for advancing in time. Such a method is used to solve the transient BTE for a square domain with prescribed temperature and adiabatic boundary conditions. Our results are consistent with transient heat transfer problems solved by FVM approach.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"27 1","pages":"107-114"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82303633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dimensional tolerance and geometric tolerance are the most important technique indicators associated with the function of a machinery product. This article introduced a measurement system, which was developed for a long canister machinery product which needs 100% detection. The inspecting mode, still dependent on a coordinate measuring machine or any other precision measuring instrument, leads to low speed of detection and low accuracy. Aiming at solving the problem, an automatic measurement system is built based on virtual measuring technology, based on LabVIEW virtual instrument platform to develop the main control program to build the peripheral hardware which was founded on some key technique: fixing appliance, sensor applications, exact arithmetic, system integration. Furthermore, it is essential to carry out the research of generalized design. Through using hardware modular unification, interface design standardization, software functionality and configurable hierarchical, achieved the goal of measuring dimensional tolerance and geometric tolerance on the same instrument. Experimental results show that inspection accuracy of the proposed system reaches 99.80%, and the measurement error is less than 0.043mm. The measurement result satisfies the requirement of the long canister technique indicators. The synthetical measurement efficiency reaches three times that of the former method.
{"title":"DESIGN OF LONG CANISTER MACHINERY PRODUCT MULTIFUNCTIONAL MEASUREMENT SYSTEM BASED ON LABVIEW","authors":"Wang Bin, Sun Rui, Qi Tiecheng","doi":"10.2495/CMEM170131","DOIUrl":"https://doi.org/10.2495/CMEM170131","url":null,"abstract":"Dimensional tolerance and geometric tolerance are the most important technique indicators associated with the function of a machinery product. This article introduced a measurement system, which was developed for a long canister machinery product which needs 100% detection. The inspecting mode, still dependent on a coordinate measuring machine or any other precision measuring instrument, leads to low speed of detection and low accuracy. Aiming at solving the problem, an automatic measurement system is built based on virtual measuring technology, based on LabVIEW virtual instrument platform to develop the main control program to build the peripheral hardware which was founded on some key technique: fixing appliance, sensor applications, exact arithmetic, system integration. Furthermore, it is essential to carry out the research of generalized design. Through using hardware modular unification, interface design standardization, software functionality and configurable hierarchical, achieved the goal of measuring dimensional tolerance and geometric tolerance on the same instrument. Experimental results show that inspection accuracy of the proposed system reaches 99.80%, and the measurement error is less than 0.043mm. The measurement result satisfies the requirement of the long canister technique indicators. The synthetical measurement efficiency reaches three times that of the former method.","PeriodicalId":23647,"journal":{"name":"WIT transactions on engineering sciences","volume":"27 1","pages":"127-135"},"PeriodicalIF":0.0,"publicationDate":"2017-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77607697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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