Cable Reel Research Articles

Research and Dynamic Analysis of a Cable Reel Device Based on Constant Tension

Research and Dynamic Analysis of a Cable Reel Device Based on Constant Tension

Facility layout planning through the ALDEP Method in the wooden cable reels industry

Facility layout planning plays a pivotal role in manufacturing system design, impacting vital metrics such as lead time, handling costs, and space optimization. While a significant portion of research has been invested in refining existing facility layouts, there is a noticeable research gap in devising optimized layouts for new establishments, especially in the value-added wood products domain. Addressing this lacuna, this research focused on designing an efficient department-level layout for a wooden cable drums manufacturing facility in an area of 4150 m2. This facility included both office and production areas. The investigative process was segmented into four distinct phases: Deciding the strategic positioning of the facility on the available plot, defining the functional and spatial requirements for each department, establishing the intricate relationship dynamics between these individual units, and rigorously documenting the most optimal department-level facility layout. For precision in layout creation, the ALDEP algorithm was employed, which was further visualized to offer a comprehensive three-dimensional representation. The final layout seamlessly organized seven departments within the 1st Floor Office Area, eight in the 2nd Floor Office Area, and thirteen within the Production Floor. Efficiency evaluation of these areas yielded scores of -811, 184, and -318, respectively. Conclusively, this research furnished actionable insights for manufacturers within the wood products sector and was expected to be an invaluable reference for academics delving into facility planning and value-added wood products manufacturing.

Multi-parameters approach to assessment of soil liquefaction vulnerability in wetland areas of Lagos, Southwestern, Nigeria

With respect to geology, most coastal terrains are underlain by problematic soils, some of which are liquefiable in nature and may cause sudden failure of engineering infrastructures. Against this background, this study was carried out to investigate the subsurface geology of some Lagos coastal areas and their engineering implications using geophysical and geotechnical methods. To achieve this purpose, the Multichannel Analysis of Surface Waves, Cone Penetration Test, and Standard Penetration Test were deployed. Surface waves measurements were collected using a 24-channel seismograph to which 4.5 Hz twenty-four vertical geophones were connected via the takeouts of the two cable reels. CPT soundings were carried out with a 10-tons motorized cone penetrometer and boring with SPT were carried out as well. The results of the Multichannel Analysis of Surface Waves measurements showed that the shear waves velocity (Vs) ranges from 160 to 470 m/s. The very loose to loose sand delineated have Vs in the range from 170 to 250 m/s. The tip resistance and sleeve resistance values spanned between 4.0 and 72.0 kg/cm2 and 6.0–94 kg/cm2 respectively. The thickness of the liquefiable sands in the study area varied between 2.5 and 18.0 m. At Ikoyi site, owing to the prevalence of loose silty sand, corroborated by the available borehole data and the Liquefaction Potential Index, it is classified as having a high-risk liquefaction and could be responsible for the periodic damages to structural infrastructures such as roads and buildings. The sediments mapped at Okun-Ajah and Badore sites are mainly saturated loose sands with high likelihood to liquefaction with very-high to high risk severity. The study concludes that the presence of these sediments and other factors that could induce ground motion making the study sites potentially susceptible to liquefaction. Hence, an urgent attention must be given to early monitoring measures to address the trend.

Structural Mechanics Analysis of Multi-row Cable Drum of Port Machinery Based on ANSYS Workbench

Single row cable reels are often used in the study of cable reels by heavy port machinery equipment, but there are problems of less cable capacity and larger circumferential space. In the design of the traditional heavy machinery cable drum design concept principle as the basis, on the basis of the drum structure optimization and strength check. According to the design of cable parameters, it is concluded that the winding of drum occupies less space, the cable is arranged in a regular order and can accommodate a large amount of cable. In this paper, Ansys Workbench is used for structural mechanical analysis of the drum body, and the final results show that the maximum stress of the drum under the working load is far less than the allowable stress value. By analyzing the mechanical state under the working condition, the effect of cable capacity increase is obvious, and the relative mass is reduced, and the stability of the drum structure meets the requirements.

Design and analysis of an automatic cable reel for multiple cable connections

The cable reels are widely used in highly mobile radars. The working efficiency and reliability of the traditional cable reels are not enough in the cases that the number of the cables is large and the power is high. A novel automatic cable reel is developed to provide a reliable and compact operating device for the radar cables. This paper describes the mechanical design of the winch unit and connection unit of the cable reel, which can automatically wind cables and join or separate the electrical connectors, respectively. The power of the motor is determined and the specifications of the system is presented. Then, the cable reel system is analysed and tested. The modal analysis of the system is conducted. The functions that the automatic cable reel can wind the cables, join and separate the electrical connectors efficiently are verified by the experiment results. Compared with the ordinarily manual cable reels or the slip rings, the automatic cable reel developed in this paper is innovative to realize the automation of the separation and joint of the connectors while winding the cables simultaneously, which can promote the efficiency and the reliability of the highly mobile radars, without twining and knotting the cables or wearing the slip rings, especially for multiple and high-power cable connections in limited spaces.

State of the art of fatigue strength of materials & structures from additive manufacturing – The pivot, A CETIM development.

Additive manufacturing is a subject at the heart of innovation in many fields of mechanics. It allows, through different techniques, to produce increasingly complex parts. It also offers greater design freedom, often with shorter times than conventional manufacturing. These techniques having a multitude of parameters and finishing methods, Cetim wishes to study their influence on fatigue resistance through tests on standardized samples and on mechanical parts.The pivot is an example of study part developed at CETIM. It is at the crossroads of technical art and technological developments. This part, resulting from a mechanical assembly of cable reels for industry, has been specially developed for additive manufacturing. It incorporates all the constraints and advantages of current technology. This part is stressed in fatigue during operation in combined rotations. It is subjected to alternating loads linked to centrifugal forces.The design optimizes the constraints and design opportunities linked to additive manufacturing (topological optimization, supports optimizations). It also integrates metallurgical considerations and geometric constraints necessary for the finish. A specific range of surface finishes was produced for this part, driven by the reduction of two key roughness values, the Ra and Rz of the surfaces.The validation of the mechanical properties was carried out on several production batches characterize the alloy behavior (metallurgically, mechanically and in fatigue). The parameters obtained during the first test phase (static and Manson-coffin) were incorporated into the simulations and dimensioning of the fatigue tests of the part. The pivot had several metrological checks with no-contact methods (tomography, scan, CMM, etc.) to check the dimensions and whether any defect was present. Then, the part was placed under a test bench to validate its mechanical performance and industrial expectations.This study therefore proposes a direct correlation between the difficulties linked to the development of parts of additivemanufacturing structures. The various technical problems from the microstructure to the structure of the part were removed step by step.

Study on electromagnetic-fluid-temperature multiphysics field coupling model for drum of mine cable winding truck

Aiming at solving problems of low efficiency, low cable capacity in current 300m open-pit mine cable winding truck, a 900 m cable winding plan was proposed. In this paper, the mechanism of the thermal effect of the cable was described, and a two-dimensional axisymmetric electromagnetic-fluid-temperature multiphysics coupling model of the cable reel was established regarding the 900m cable reel as independent system. Considering the structure of the drum, the number of cable winding layers, the factors of heat conduction, heat radiation and convective heat transfer in the actual working process, the steady state analysis of the multi-physical field coupling was carried out. The sum of the losses of each part of the cable was obtained through the calculation of electromagnetic field, which was used as a heat source to calculate and analyze the temperature distribution of different layers of cable winding, as well as the temperature distribution and heat dissipation characteristics of different structures of the drum. The results show that three layers of cable winding is the best design. The lowest temperature of closed cylindrical drum is 70°C after heat dissipation, which has obvious advantages compared with the lowest temperature of 85° after heat dissipation of squirrel-cage cylindrical drum. The results provide a reliable theoretical basis for the research and development of a new type of mine cable winding truck with 900 m cable capacity.

Contactless Cable Reels Hit the Next Level

NEW CABLE REEL LINE OFFERS AN EXTENDED LIFESPAN, HIGH ACCURACY AND INTEROPERABILITY IN ANY OFF-HIGHWAY APPLICATION

A flexible retraction cable reel based on planetary gear drive

A flexible retraction cable reel based on planetary gear drive

A comprehensive survey of thermoelectric homogeneity of commonly used thermocouple types

Thermocouples are widely used as temperature sensors in industry. The electromotive force generated by a thermocouple is produced in a temperature gradient and not at the thermocouple tip. This means that the thermoelectric inhomogeneity represents one of the most important contributions to the overall measurement uncertainty associated with thermocouples. To characterise this effect, and to provide some general recommendations concerning the magnitude of this contribution to use when formulating uncertainty analyses, a comprehensive literature survey has been performed. Significant information was found for Types K, N, R, S, B, Pt/Pd, Au/Pt and various other Pt/Rh thermocouples. In the case of Type K and N thermocouples, the survey has been augmented by a substantial amount of data based on calibrations of mineral-insulated, metal-sheathed thermocouple cable reels from thermocouple manufacturers. Some general conclusions are drawn and outline recommendations given concerning typical values for the uncertainty arising from thermoelectric inhomogeneity for the most widely used thermocouple types in the as-new state. It is stressed that these recommendations should only be heeded when individual homogeneity measurements are not possible. It is also stressed that the homogeneity can deteriorate rapidly during use, particularly for base metal thermocouples.

Identifying the unique challenges of installing cold ironing at small and medium ports – The case of aberdeen

Emissions from shipping contribute significantly to both climate change and local air pollution. Cold ironing (onshore power supply) reduces emissions while ships are berthed in port by providing power from shore-side electricity rather than onboard auxiliary generators. Previous research has focused on installing the technology in large ports but if policy goals (particularly in the EU) are to be achieved then smaller ports must also install the technology. Therefore, this study examines the feasibility of installing cold ironing in a medium sized port with several small berths, based on the case of Aberdeen.Vessel call data were analysed to calculate energy demand and a cold ironing system was designed, including separate OPS units for numerous small berths. The total capital cost was £6.6 m (€7.4 m) and the system could save annual emissions of 108 tonnes of NOx, 2.7 tonnes of PM and 4,767 tonnes of CO2 emissions worth £1.3 m (€1.4 m). Payback scenarios were examined via SCBA, based on the external costs of potential emission savings. In the best case scenario, the substantial external cost benefits would return the system capital and operating costs in only 7.0 years, or 3.5 years if subsidised 50% by the EU. Challenges result from several small berths needing individual OPS units, long cables and cable reel storage, as well as the need for several vessels to install the onboard technology, which must be overcome if ports besides the large cruise and container ports are to install cold ironing.

Assessment of Liquefaction Potential of Some Coastal Soils in Lagos, South-Western Nigeria Using Geophysical and Geotechnical Methods

Liquefaction occurs in shallow, loose, saturated deposits of cohesionless soils subjected to strong shearing stresses. This leads to the transfer of stress from the soil skeleton to the pore water precipitating a decrease in effective stress and shear resistance of the soil. The study gives the results of the liquefaction potential assessment in some part of Lagos wetland areas of Lagos. The aim of this study was to assess the liquefaction potential through the evaluation of its severity in response to Earth tremors. In order to achieve this purpose, Multi-channel Analysis of Surface waves (MASW) and Cone penetration testing (CPT) were carried out. For an optimal coverage of the study area, twenty-four channels 4.5Hz geophones connected to the ABEM Mark 6 Seismograph through two cable reels were used to detect the generated seismic wave produced by the weight drop of about 19.1 kg. The CPT soundings for assessing subsurface stratigraphy with respect to liquefiable soils were carried out with a 10-Ton Dutch Cone Penetrometer. The softwares used were SeisImager, for processing the MASW data and CLiq for the CPT measurements. The shear wave velocity models were generated for the MASW measurements. The models show that sand sediments with velocity ranging from 118 - 279 m/s dominated most of the study area. Also, the results show that for the potential liquefiable sands identified, the shear wave velocity ranges between 118.0 – 180 m/s delineated at depths between 10.0 – 20.0 m within study profile an is typical of liquefiable sands. Simplified procedure of assessment of Liquefaction potential from CPT showed a model curve whereby some CPT points were within the liquefiable zones.

THE MONOSPIRAL MOTORISED CABLE REEL IN CRANE APPLICATIONS

The main consideration of any reeling system is the effect it has on cable tensions and hence cable life. This paper explains the relationship of reel torque to cable tensions and the reasons why this relationship is so important. Such system is characterized by variable parameters, primarily a variable moment of inertia and a variable diameter of the coiled cable. For these reasons, in order to ensure proper dimensioning of the drive, it is necessary to know the motor torques that need to be developed as a function of the coiled cable. The motor should be able to develop the required torques in a very wide speed range. It is shown that for properly sizing the motor it is necessary take into account the dynamics of the cable reel drive. In this paper monospiral motorized cable reel for winding power cable in crane applications with frequency converter fed induction motor is analyzed. Also, the equipment selection procedure for the real crane with concrete data is shown. Experimental results are recorded during the crane commissioning in real condition.

Analysis and Experimental Study on the Effect of Bridge Cable Reels on the Performance of Sheath

Analysis and Experimental Study on the Effect of Bridge Cable Reels on the Performance of Sheath

1P2-A07 揺動アーム型レベルワインダにおけるケーブル張力維持制御

A novel cable reel named "Unicorn Reel" had been developed for mobile robots working in hostile environments. The Unicorn reel uses the Oscillating Level Winder Arm to lead the cable from the pipe to the winding system, which needs a constant cable tension to perform constant neatly winding. In this paper, we propose a control method to keep the cable tension constant for the Unicorn reel, which uses a leaf spring and a micro-displacement sensor. After the calibration of the leaf spring is performed, we also measure the cable tension by a force sensor and demonstrate the validity of the control method.

1P1-B05 揺動アーム型レベルワインダを用いたケーブルリールの提案(スマートメカニズム"sMechanism"とその制御)

1P1-B05 揺動アーム型レベルワインダを用いたケーブルリールの提案(スマートメカニズム"sMechanism"とその制御)

Stress Analysis of Side Plates on the Logging Truck’s Cable Reel

In order to investigate stress distribution of side plates on the logging truck’s cable reel, and find the cause of side plates cracking, an elastic-plastic finite element model of three-dimension is set up. Based on a series of computations, the distributions of displacement and equivalent stress under the working conditions are analyzed, as well as the influence of the number of side plate floors on stress distribution. The results indicate the maximum equivalent stress is on the outside connection between side plate and cable reel, and the floors take the most part loads from steel cables. When the number of floors is greater than 11, increasing the floor number will not decrease the maximum equivalent stress obviously. The conclusion provides useful method and foundation for resolving floor cracking on logging trucks.

Development of Cable Reel for Spherical Trailer – Uniform Cable Winding

Cabled communication is considered useful for rescue robots in post-disaster environments because the cable provides good signal communication and assists in retrieving the robot. Having said that, however, the cable could also hinder robot mobility and smaller robots lack payload capacity for reels. The spherical trailer cable reel we developed consists of a spherical trailer and a cable reel with a cable oscillator to oscillate the cable over the reel. Through experiments and studies, we identified a problem with the cable oscillator that prevented the cable from being wound uniformly over the reel. We propose three improvements to solve this problem involving optimization of the spatial cam structure. This paper describes the cable reel, improved mechanisms, and experiments to test their performances.

Sonoco Products Co.

AbstractPaper Products (MIC: 11.11 SIC: 2631 NAIC: 322130)Sonoco Products manufactures industrial and consumer packaging products and provides packaging services. Co.'s Consumer Packaging segment includes round and shaped rigid packaging; printed flexible packaging; and metal and plastic ends and closures. The Tubes and Cores/Paper segment includes paper and composite paperboard tubes and cores; fiber‐based construction tubes and forms; recycled paperboard; linerboard and recovered paper. The Packaging Services segment provides point‐of‐purchase displays; brand management and supply chain management, while its All Other Sonoco segment offers wire and cable reels, molded and extruded plastics, paperboard products, and protective packaging.

Optimal terrain-following for towed-aerial-cable sensors

Towed-aerial cable systems are often used for towing decoys from aircraft and for collecting electromagnetic data from low altitudes. Airborne cable systems are typically controlled by maneuvering the aircraft, which can limit the safe altitude of the towed-sensor package. In this paper, a real-time optimal control strategy for controlling a towed-cable system is proposed that uses cable winch control to control the altitude of the towed-body. The controller is based on a receding horizon control approach, where the aircraft senses the terrain profile ahead of the towed-body with a relatively short time horizon. This information is sent to the controller, which updates the cable winch reel acceleration to safely avoid colliding with the terrain, while keeping the towed-sensor close to the desired altitude for obtaining good measurements. The controller is developed for a simplified system model and implemented in a multibody cable system model that incorporates cable flexibility and elasticity.