cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
A. Jannifar
Contact Email
polimesin@pnl.ac.id
Phone
+628126930456
Journal Mail Official
polimesin@pnl.ac.id
Editorial Address
Politeknik Negeri Lhokseumawe Jl. Banda Aceh-Medan Km 280 Buketrata, Lhokseumawe, 24301, Aceh, Indonesia
Location
Kota lhokseumawe,
Aceh
INDONESIA
Jurnal Polimesin
Published by Politeknik Negeri Lhokseumawe
ISSN : 16935462     EISSN : 25491199     DOI : http://dx.doi.org/10.30811/jpl
Core Subject : Science, Engineering,
Automotive Engineering Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering
Polimesin mostly publishes studies in the core areas of mechanical engineering, such as energy conversion, machine and mechanism design, and manufacturing technology. As science and technology develop rapidly in combination with other disciplines such as electrical, Polimesin also adapts to new facts by accepting manuscripts in mechatronics. In Biomechanics, Mechanical study in musculoskeletal and bio-tissue has been widely recognized to help better life quality for disabled people and physical rehabilitation work. Such a wide range of Polimesin could be published, but it still has criteria to apply mechanical systems and principles. Exceeding the limitation has been a common reason for rejection by those outside the scope. Using chemical principles more than mechanical ones in material engineering has been a common reason for rejection after submission. Excessive exploration of the management within the discipline of Industrial Engineering in the manufacturing technology scope is also unacceptable. The sub-scope biomechanics that focuses on ergonomics and does not study movement involving applied force on the bio-tissue is also not suitable for submission.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
 1 
Search results for , issue "Vol 18, No 2 (2020): Agustus" : 7 Documents clear
Fabrikasi dan uji kinerja mesin produksi santan terintegrasi pemarutan tipe sentrifugal kapasitas 10 liter/jam Herdi Susanto; Darwin Hendri; Zakir Husin; Sulaiman Ali
Jurnal POLIMESIN Vol 18, No 2 (2020): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v18i2.1931

Abstract

The development of coconut processing technology to produce coconut milk for small and medium industry until now still uses a separate processing machine between coconut grating and coconut squeezing, so it is considered ineffective and less efficient. Therefore, previous studies aimed at improving the performance of coconut processing machines into coconut milk, have been carried out with the design of coconut milk producing machines that are integrated between the coconut grating process and the coconut milk squeezing process utilizing centrifugal force. Research aims to manufacture, a functional test of the machine components, and a calculation of the production cost per unit of the machine. The results showed that the coconut milk production machine has a power of 0.75 Kw, a maximum shaft rotation of 2850 rpm and an engine dimension of 600 x 600 x 1200 mm. The capacity of coconut milk production machines is 10 liters per hour, visual test results show that coconut milk production machines can function well at 1000 rpm, 1500 rpm, 2000 rpm and 2500 rpm. The total production cost for a unit of centrifugal coconut milk production machine with a production capacity of 10 liters per hour is Rp. 4,760,000.
Pengaruh matrik resin-epoxy terhadap kekuatan impak dan sifat fisis komposit serat nanas Ade Irvan Tauvana; Syafrizal Syafrizal; Mokhamad Is Subekti
Jurnal POLIMESIN Vol 18, No 2 (2020): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v18i2.1841

Abstract

Pineapple leaf fiber is currently widely used in furniture and handicraft industries because it is easy to obtain, inexpensive, does not endanger health, can reduce environmental pollution so that later on as a composite reinforcing fiber can overcome environmental problems The choice of epoxy resin as a base material is caused the strength and stiffness of Epoxy resins is greater compared to other types of polymers. This study was intended to see the impact strength of pineapple fibers resin-epoxy and the fracture material of the specimen with macro photographs. The test specimens used pineapple fiber with volume fraction, 10%, 30%, 50% and epoxy resin matrix and hardener as hardener. The specimen is made by casting and mica as a mold. Mechanical testing using impact test, Physical test using photo macro structure. The result of the impact study obtained the impact price on the fraction of 50% volume that is equal to 0.76 J / mm2, this occurs because the fraction of fiber volume of 50% in addition to the distribution of the uniform force by the matrix is also supported by the ideal fiber, from the results of the above research In Can the optimum fiber volume fraction is at 50% volume fraction.
Design of indoor test-rig to measure dynamic forces and moments on tire contact path of family car Bukhari M. Kasim; Ilyas Yusuf; Mawardi Mawardi
Jurnal POLIMESIN Vol 18, No 2 (2020): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v18i2.1917

Abstract

The vehicle's suspension system is designed to absorb shocks from road disturbance. The dynamic behavior of a tire suspension depends on many factors. Some main factors are vehicle load, speed, steering angle, road disturbances and the amount of tire elasticity. The dynamic behaviour of the tire is very difficult to observe when the vehicle is traveling on the road. To overcome this problem, in this paper, a test rig will be designed to be able to observe changes in tire dynamic properties experimentally for family car type. The design concept is based on the sprung and un-sprung mass dynamics. This research was conducted by five methods; study mechanism of measuring the tire dynamic behaviors, design of test equipment construction, simulations, and analysis of construction strength. The spring mass construction is designed to have 1 degree of freedom which is able to move the translation in a vertical direction to indicate changes in car body height. On the other hand, the un-sprung mass construction is designed to have 3 degrees of freedom that can move translation in the vertical direction, rotation in the z axis and rotation in the x axis. Movement in the vertical direction is to simulate a tire jump, rotation on the z axis is to simulate the steering angle and rotation on the x axis is to simulate the camber angle. The design result shows that the design construction not only saves to handle all forces and moments but can also fulfill functions to simulate the dynamic response of the car model. Simulation result shows maximum stress is point on C-D bar that is 7.13 N/mm2. This value is less than allowable shear stress which is 37N/mm2. By all simulation result, it can be concluded that all materials used are saved for this construction.
Penggunaan material berubah fasa sebagai penyimpan energi termal pada bangunan gedung Hamdani Umar
Jurnal POLIMESIN Vol 18, No 2 (2020): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v18i2.1832

Abstract

The energy consumption of the world building sector reaches 30% of overall energy consumption and accounts for one third of greenhouse gas emissions worldwide. Thermal energy storage is a simple and effective technique to be applied to buildings to improve building energy efficiency, and is expected to reduce the environmental impacts associated with energy use. Thermal storage by utilizing phase change material (PCM) is the most promising technique because of its high energy storage capability and small temperature changes. The combination of building materials and PCM is an efficient way to increase the thermal energy storage capacity of building components for the purpose of storing thermal energy directly in buildings. In this study the results of testing the use of beeswax as a phase change material in building concrete are given. The test results of concrete equipped with beeswax as PCM decreased the strength of the concrete but on the other hand it was able to absorb and store heat energy. The results of application analysis in buildings are able to reduce indoor cooling loads. 
Studi analisis simulasi kekuatan beban pada alat bantu pembuatan lubang dengan sudut kemiringan 45 derajat Dr. Fatahul Arifin, S.T., Dipl.Eng.EPD., M.Eng.Sc; Dwi Arnoldi, S.T., M.T.; Ella Sundari, S.T., M.T.; Fenoria Putri, S.T., M.T.; Feby Agasa; Yudha Ramadhan; Gustaf Susetyo; Dr. Yusuf Dewantoro Herlambang, S.T., M.T.
Jurnal POLIMESIN Vol 18, No 2 (2020): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v18i2.1837

Abstract

Jig and Fixture 45 degree bore is a tool which is used to make hole the degree 45 degrees. The goal of study is design and analyze the strength of the frame and assembly with variations in position of load and value from 100 kg to 500 kg. The results of the stress analysis feature with finite element Analysis (FEA) are von misses stress, displacement, and safety factor. The Frame uses a hollow carbon steel of 20 mm x 20 mm, a material of carbon steel. The frame length is 300 mm, the width is 300 mm, the height is 270 mm, dimension of the tool is 300 mm x 300mm x 270 mm. The simulation results are; the safety factor of frame maximum is 7.08 with a load of 100 kg, while minimum is 1.42 with load 500 kg. Whereas, the overall assembly safety factor maximum is 3.88 with loads 100 kg and minimum is 0.82 with load 500 kg. The unsafe location is on the upper of connection frame, while for the overall assembly is on the buffer of shaft component.
Analisis elemen hingga untuk siklus berjalan pada model prostetik lentur pergelangan kaki Zakki Fuadi Emzain; Utsman Syah Amrullah; AM. Mufarrih
Jurnal POLIMESIN Vol 18, No 2 (2020): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v18i2.1922

Abstract

The model of compliant prosthetic ankle-foot is proposed as an alternative prosthetic aid for people with disabilities to do activities. The model is designed and analyzed to determine its strength and feasibility before being fabricated. The two main stages in this research are model design and model analysis. The shape of the model was designed with several elastic cavities and arches using the concept of a compliant mechanism. Finite element analysis (FEA) was performed on the prosthetic model when the stance phase on the mechanism of the human gait cycle. Because the prosthetic foot area is in contact with the ground on this cycle phase. Three main positions in 0-64% of the gait cycle are heel strike, midstance, and toe-off positions used as boundary conditions. The amount of load given adjusts the bodyweight percentage of the gait cycle with a reference of 80 kg. The direction of loading was by following the angle of the foot when dorsiflexion to plantarflexion during the stance phase. The biggest deformation results occurred in the toe-off position with two peak cycles of 4.69 mm and 4.45 mm at 17% and 51% of the gait cycle. While the smallest deformation occurred in the midstance position with an average of 0.08 mm. Because it used fixed support with two pedestals on the soles of the prosthetic. Maximum stress occurred in the toe-off position of 16.45 MPa at 17% of the gait cycle. With a safety factor of 1.63, the value is still safe because it is below the yield strength value of ABS material. While the largest strain of energy was located in the lower area in the middle of the arch between the toe and sole foot in the toe-off position of 3.55 mJ.
Pengaruh media pendingin terhadap kekerasan dan ketangguhan hasil pengelasan material AISI 1050 pada proses las MAG Azwinur Azwinur; Muhammad Yudi; Zulkifli Zulkifli
Jurnal POLIMESIN Vol 18, No 2 (2020): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v18i2.1924

Abstract

The temperature of the cooling medium is a substance that serves to determine the speed of the cooling process of the material that has been given heat treatment from the welding results. Cooling is an alternative to improve and improve the mechanical properties of post-welding materials. The selection of the temperature of the cooling medium is very important to get a good connection strength. The purpose of this study was to determine the effect of the cooling media on the hardness and toughness of AISI 1050 material using the MAG welding process. The cooling media which are varied are water, sea water, and air. The welding process used is the welding process MAG (Metal active gas) with CO2 protective gas, the material used type AISI 1050 with mechanical testing hardness and impact test. The results showed that the use of the type of cooling media affects the strength of the welding joint in terms of the value of the hardness and toughness of the material receiving the load. The highest hardness value in the HAZ 1, HAZ 2 and weld metal areas occurs in the use of sea water cooling media where in HAZ 1 is 71, 63, HAZ 2 is 73.5 and weld metal is 70, while the lowest value in the use of air conditioning media where on HAZ 1 of 65.63, HAZ 2 of 63.75 and weld metal of 58.83. The impact toughness test results found that the use of seawater cooling media has the highest toughness value of 1.83 joules / mm², then followed by air media of 1.75 joules / mm², and the lowest is the water use of 1.50 joules / mm² .

Page 1 of 1 | Total Record : 7

 1 

Filter by Year

2020 2020


Reset
Filter By Issues
All Issue Vol 23, No 6 (2025): December Vol 23, No 5 (2025): October Vol 23, No 4 (2025): August Vol 23, No 3 (2025): June Vol 23, No 2 (2025): April Vol 23, No 1 (2025): February Vol 22, No 6 (2024): December Vol 22, No 5 (2024): October Vol 22, No 4 (2024): August Vol 22, No 3 (2024): June Vol 22, No 2 (2024): April Vol 22, No 1 (2024): February Vol 21, No 6 (2023): December Vol 21, No 5 (2023): October Vol 21, No 4 (2023): August Vol 21, No 3 (2023): June Vol 21, No 2 (2023): April Vol 21, No 1 (2023): February Vol 20, No 2 (2022): August Vol 20, No 1 (2022): February Vol 19, No 2 (2021): Agustus Vol 19, No 1 (2021): February Vol 18, No 2 (2020): Agustus Vol 18, No 1 (2020): Februari Vol 17, No 2 (2019): Agustus Vol 17, No 1 (2019): Februari Vol 16, No 2 (2018): Agustus Vol 16, No 1 (2018): Februari Vol 15, No 2 (2017): Agustus Vol 15, No 1 (2017): Februari Vol 14, No 2 (2016): Agustus Vol 14, No 1 (2016): Februari Vol 9, No 1 (2011): Februari Vol 8, No 2 (2010): Agustus Vol 8, No 1 (2010): Februari Vol 7, No 2 (2009): Agustus Vol 7, No 1 (2009): Februari Vol 6, No 2 (2008): Agustus Vol 3, No 2 (2005): Agustus Vol 2, No 1 (2004): Februari Vol 1, No 1 (2003): Agustus More Issue