Design and Manufacturing of a Non-Standard Chain Parts for a Chain Conveyor for a Harvest Shallot: A Case Study

2020 ◽  
Vol 902 ◽  
pp. 91-96
Author(s):  
Cao Hung Phi ◽  
Nguyen Thai Van ◽  
Le Hong Ky

This paper presents a complete case study for designing and manufacturing chain parts for chain conveyor use for a harvest shallot for a real. The process of harvesting shallot in Vietnam is being done manually. Mechanization, automation of the harvest process has been demanded by farmers. In the harvest shallot equipment, the chain conveyor system is used to handling the desired orbit to the packing position. Shallots are uneven in size, distributed in a certain size range. Chain conveyor systems with the chain was non-standardized were choiced. Therefore, a complete design is required to meet requirement. The design procedures are: (1) calculation of the expected loads that exert on the chain during operation, (2) selection of materials, (3) designing the different parts of the chain taking into account safety, assembly process and economic considerations. The final design was justified and validated. The chain of chain conveyor system is working properly and safety under real conditions.

2018 ◽  
Vol 786 ◽  
pp. 335-341
Author(s):  
Mohammed Gamil ◽  
Taher El-Bitar

This paper presents a complete case study for designing and manufacturing chain parts for scraper chain conveyor (SCC) for a real client (chicken’s dietary supplements company). The chain of the SCC is dilapidated due to joints and pins deterioration. The Productivity was reduced as a result of operating at low capacity load and repeated maintenance. The condition of chain was too worse and not able to be repaired. Furthermore, the chain was non-standardized. Therefore, a complete design is required to replace the damage parts of the chain. The design procedures are: (1) calculation of the expected loads that exert on the chain during operation, (2) selection of materials, (3) designing the different parts of the chain taking into account safety, assembly process and economic considerations. The final design was justified and validated. The SCC is working properly and safety under various load capacities.


2019 ◽  
Vol 2 (2) ◽  
pp. 94
Author(s):  
Hari Santoso Wibowo ◽  
Shokiful Aziz ◽  
Bambang Subandi

ABSTRACTThe function of the mosque in the history of its emergence is indeed not merely for "the place of prostration" as it literally means, but it has many functions. The mosque has another main function which is as a place of worship in preaching the values of Islam in people's lives. One form of syi'ar that can be performed in a mosque is the Friday Prayer. The purpose of this research is to describe the production management process of the Friday sermon program and the object of the Al Akbar National Mosque in Surabaya. This research uses a qualitative method with a Case Study approach. This study uses data collection techniques through interviews, observation and documentation. The data obtained came from the Chairman of Takmir / Managing Director, Head of Da'wah Division and several parties expected to be related to the program. Implementation of production management in the preparation of the Friday sermon program through several stages including the search for ideas through internal deliberations of the directorate of Imarah and the field of Da'wah, Selection of the preacher through qualification standards, Khatib Testing and Evaluation, the design of the sermon, the final design of the sermon.ABSTRAKFungsi masjid dalam sejarah kemunculannya, memang tidak sekedar untuk “tempat sujud” sebagaimana makna harfiahnya, tetapi memiliki banyak fungsi. masjid memiliki fungsi utama lainnya yaitu sebagai tempat syiar dalam mendakwahkan nilai – nilai Islam dalam kehidupan masyarakat. Salah satu bentuk syi’ar yang bisa dilaksanakan di masjid adalah shalat Jum’at. Tujuan dari penelitian ini ialah untuk menggambarkan proses manajemen produksi program khutbah Jum’at dan yang menjadi objeknya Masjid Nasional Al Akbar Surabaya. Penelitian ini menggunakan metode kualitatif dengan pendekatan Studi Kasus. Penelitian ini menggunakan teknik pengumpulan data melalui wawancara, observasi dan dokumentasi. Data yang diperoleh berasal dari Ketua Takmir/Direktur Utama, Kepala Bidang Dakwah  dan beberapa pihak yang diperkirakan terkait dengan program tersebut. Implemantasi manajemen produksi pada penyusunan progam khutbah jumat melalui beberapa tahapan diantaranya pencarian gagasan melalui musyawarah internal direktorat Imarah dan bidang Dakwah, Seleksi Khatib melalui standar kualifikasi, Pengujian dan Evaluasi Khatib, Desain khutbah, Desain akhir khutbah.


Author(s):  
Jayant P. Modak ◽  
Girish D. Mehta ◽  
Pramod N. Belkhode

Literature indicates availability of dynamic analysis of a drive shaft of a chain conveyor in a limited way. Relations for estimation of a conveyor chain pull to overcome, (i) Rolling resistance of the track, (ii) Tail sprocket and drive sprocket shaft bearing friction resistances, (iii) Drive and tail sprocket chain binding resistances and (iv) Impact loading on the chain have been only derived [1,2]. However, further extension to deduce the load torque demand on drive sprocket during one articulation of the chain is not seen derived in the literature. This paper details this, followed by digital computer simulation including illustration of application of this new procedure to a representative case study. Work on the same lines is not much seen in the literature. However, similar work by Harrison [4] is done for the belt conveyor.


1995 ◽  
Vol 11 (2) ◽  
pp. 269-296 ◽  
Author(s):  
Y. K. Wen

Designs of buildings and structures for seismic loads are traditionally based on experience on performance of structures in past earthquakes. The large variability in the earthquake loadings has long been recognized by engineers but not fully accounted for in the code procedures. Although the selection of the design earthquake is based on probability, since it is used in conjunction with a series of factors depending on structural period, site soil conditions, inelastic behavior, importance of the structure e.t.c., the reliability and safety of the final design remains unknown and undefined. The recent sentiment of the research community and design professionals is that there is a need to develop design formats based more on consideration of the physics of the problem and explicit treatment of the variabilities and uncertainties. Such format may be used as the basis for developing future building codes. This paper summarizes some recent developments in this area; in particular, reliability evaluation and comparison of buildings designed in accordance with current code procedures in different countries and development of design procedures and formats based on multi-level, probabilistic structural performance criteria.


2004 ◽  
Vol 126 (3) ◽  
pp. 627-631 ◽  
Author(s):  
Bruno Agard ◽  
Andrew Kusiak

The paper presents a model and an algorithm for selection of subassemblies based on the analysis of prior orders received from the customers. The parameters of this model are generated using association rules extracted by a data mining algorithm. The extracted knowledge is applied to construct a model for selection of subassemblies for timely delivery from the suppliers to the contractor. The proposed knowledge discovery and optimization framework integrates the concepts from product design and manufacturing efficiency. The ideas introduced in the paper are illustrated with an example and an automotive case study.


Sains Insani ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 15-21
Author(s):  
Zulkefli Aini ◽  
Abdul Ghafar Don ◽  
Ahmad Irdha Mokhtar ◽  
Nur Uswah Ahmad Fauzi

One of the factors that can affect a person's behavior is a communication message. In the context of the da`wah, preachers who involved actively in da`wah communication with the Orang Asli should be able to ensure that the message conveyed can be understood by the target group. In addition, the selection of the correct messages of da`wah based on the foremost priority simplify the process of sharing information between the preachers and the Orang Asli. Accordingly, this article aims to identify specific topics of Islamic faith (akidah) submitted by the Orang Asli in the process of da`wah communication and to identify verbal feedback given by the preachers to the Orang Asli of the topics. This qualitative study using case study design and data was collected through semi-structured interviews. Interviews involving nine preachers were active in da`wah activity to the Orang Asli community in Selangor. Data were analyzed thematically according to the specified objectives. The study found that the topics frequently raised by the Orang Asli is concerned about belief in Allah, belief in Malaikat, and belief in Qada' and Qadar. The topics may be found within the framework of worldview in their beliefs and practice of ancient traditions. Therefore, the preachers gave verbal feedback on these topics is based on a clear and precise sample corresponding to the level of their thinking. The emphasis on these topics is very important to strengthen and purify the faith of the community.Keywords: Communication; Message; Preacher; Indigenous community Abstrak: Elemen mesej dalam komunikasi merupakan salah satu faktor yang dapat memberi kesan terhadap perubahan tingkah laku seseorang. Dalam konteks dakwah, pendakwah yang terlibat dalam proses komunikasi dakwah dengan Orang Asli seharusnya berkebolehan memastikan kandungan mesej yang disampaikan boleh difahami oleh sasaran dakwahnya. Di samping itu, pemilihan mesej dakwah yang betul mengikut keutamaan memudahkan proses perkongsian maklumat antara pendakwah dengan Orang Asli. Sehubungan dengan itu, artikel ini bertujuan untuk mengenalpasti topik-topik tertentu dalam mesej akidah yang dikemukakan oleh masyarakat Orang Asli kepada pendakwah dan mengenalpasti maklum balas lisan yang diberikan oleh pendakwah kepada Orang Asli terhadap topik tersebut. Kajian kualitatif ini menggunakan reka bentuk kajian kes dengan pengumpulan data melalui temu bual separa struktur. Temu bual melibatkan sembilan orang pendakwah yang aktif dalam aktiviti dakwah masyarakat Orang Asli di Selangor. Data kajian dianalisis secara tematik mengikut objektif yang ditentukan. Kajian ini mendapati bahawa topik-topik yang sering dikemukan oleh Orang Asli kepada pendakwah dalam penyampaian mesej akidah ialah berkenaan tentang keimanan kepada Allah SWT, keimanan kepada malaikat, dan keimanan kepada qada’ dan qadar. Topik-topik berkenaan didapati berada dalam kerangka worldview kepercayaan dan amalan tradisi mereka. Sehubungan dengan itu, pendakwah memberikan maklum balas lisan terhadap topik-topik tersebut adalah berdasarkan keterangan yang jelas dan contoh yang tepat bersesuaian dengan tahap pemikiran mereka. Penekanan terhadap topik-topik tersebut merupakan perkara yang penting dalam rangka mengukuhkan dan memurnikan akidah masyarakat Orang Asli.Kata kunci: Komunikasi; Mesej; Pendakwah; Komuniti Orang Asli


2016 ◽  
Vol 10 (2) ◽  
pp. 162-171
Author(s):  
Hafid Hafid ◽  
Tatang Sutisna

The design and manufacturing of the rotary table with the specification Ø 170 mm (6 inches) for CNC machine 4 axis has been done. The objective of manufacturing a rotary table is to increase the efficiency of CNC machine Hardford 4 axis to be above 80% in line machining center CV. IM’s workshop. The engineering methods was taken, consist of: working preparation, manufacturing of working drawing, engineering process, the manufacturing and testing. The prototype has been tested and operated, the resulting of increasing productivity of which were as follows: the process of assembling was increased to be 3 time ( before 1 time) and processing time for a specific case reduced from 5 hours to 3 hours, number of operators for the case of assembling the rotary reduced to 1 person (before 4 persons), safety and security become to be better. The results show increased efficiency of CNC machine Hardford, from under 50% to be above 80%. Based on the economical analysis obtained by the cost of good sold (C.G.S) of the rotary table is IDR 34.060.000. The results presented in this paper is expected to be case study for developing a business of the metal and engineering SMEs domestic to the effort of improving efficiency, quality, productivity and competitiveness in global market.ABSTRAKPerancangan dan pembuatan alat bantu meja putar (rotary table) dengan spesifikasi teknis Ø 170 mm (6 inci) untuk mesin CNC 4 axis telah dilakukan. Tujuan pembuatan rotary table adalah untuk meningkatkan efisiensi mesin CNC Hardford 4 axis di atas 80% pada line machining center Bengkel CV. IM. Metode rancang bangun yang dilakukan, meliputi: persiapan kerja, pembuatan gambar kerja, proses engineering, pembuatan dan uji coba. Prototip tersebut telah diuji coba dan dioperasikan dengan hasil peningkatan produktivitas sebagai berikut: proses pengerjaan bongkar pasang meningkat menjadi 3 kali (sebelumnya 1 kali) dan waktu pengerjaan untuk kasus tertentu berkurang dari 5 jam menjadi 3 jam, jumlah operator untuk kasus bongkar pasang rotary berkurang menjadi 1 orang (sebelumnya 4 orang), keselamatan kerja dan keamanan menjadi lebih baik. Hasil peningkatan berupa efisiensi mesin CNC Hardford 4 axis dari sebelumnya di bawah 50% menjadi di atas 80%. Berdasarkan hasil perhitungan analisis ekonomi diperoleh harga pokok produksi (HPP) alat bantu meja putar adalah sebesar Rp. 34.060.000. Bahasan ini diharapkan menjadi contoh kasus bagi pengembangan usaha IKM logam dan mesin dalam negeri untuk meningkatkan efisiensi, mutu, produktivitas dan keunggulan daya saing di pasar global.Kata kunci: alat bantu meja putar, mesin CNC, harga pokok produksi


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