Susmartini, Susy
Universitas Sebelas Maret

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USULAN PERBAIKAN POSTUR KERJA OPERATOR PROSES PRODUKSI BATIK CAP DI BATIK PUTRI MULYO DENGAN METODE VISUAL MANAGEMENT Rosifah, Anita; Susmartini, Susy; Iftadi, Irwan
Performa: Media Ilmiah Teknik Industri Vol 16, No 2 (2017): PERFORMA Vol. 16, No 2 September 2017
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.428 KB) | DOI: 10.20961/performa.16.2.16976

Abstract

Observations made at work stations of  batik cap production, there are still some working conditions that are not appropriate on their worker, one of which is unnatural posture. Unusual work postures that can trigger the occurrence of pain complaints such as musculoskeletal disorders (musculoskeletal disorders). Often unwittingly, batik workers work with positions or postures that have health risks such as musculoskeletal disorders (MSDs). Based on the observation seen that at the work station batik production there are some problems related work methods. Therefore, to improve which work station needs to be repaired, it is necessary to do risk assessment of batik production station work posture using Visual Management approach.                    The Visual Management approach in this study uses the ergonomic analysis method for the whole body of REBA (Rapid Entire Body Assessment) and OWAS (Ovako Working Posture Analysis System), upper limb RULA (Rapid Upper limb Assessment) and OCRA checklist and by adding some aspects Associated with overload and repetitiveness in the OCRA checklist and OWAS.                Based on the assessment of work posture by visual management method, the result of OES value shows 3 processes with OES value ≤ 0.4 with accepted operational status and 2 process with OES value is in the range 0.4 <OES ≤ 0.5, with operational status becomes' necessary further investigation, Changes may be required
Perancangan dan Pengembangan Prothese Kaki Bagian Bawah Lutut dengan Menggunakan Quality Function Deployment Damayanti, Retno Wulan; Susmartini, Susy; Herdiman, Lobes
Performa: Media Ilmiah Teknik Industri Vol 2, No 2 (2003): PERFORMA Vol. 2, No. 2 September 2003
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.452 KB) | DOI: 10.20961/performa.2.2.11116

Abstract

This paper proposes design and development of below knee prosthesis using quality function deployment (QFD) to return the balance of human body so the patient can do their daily activities. In this method, design and development based on the voice of customer. The result of design and development is below knee prosthesis using insert silicone socket, cuff rubber suspension system, adaptor rotator ankle, jaipur foot and stainless steel pylon as strengteness. It is hope, that this below knee prosthesis be able to accommodate the user’s need and want.
Editibility Pemograman CNC-Milling dengan Memperhatikan Pemotongan Ekonomik Sebagai Pengurangan Waktu Proses pada CNC Milling Center Machine Herdiman, Lobes; Susmartini, Susy
Performa: Media Ilmiah Teknik Industri Vol 1, No 1 (2002): PERFORMA Vol. 01, No 1 Maret 2002
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.139 KB) | DOI: 10.20961/performa.1.1.10988

Abstract

In numerical control, there are five reference angle points in machining workpart surface that be done at the time of determining zero setting of cartesian scale. This process can be classified as surface milling work and cylinder milling work. In generally, workpart machining processes begin using flat end-cutter tools that is fixed with wide of surface machining like make simple of clamp direction with drive surface on reference points and check surface on processing plan of workpart geometric. This paper use two approaches based on geometric differential and analytical theory, namely (a) left hand offset or G54 and (b) right hand offset or G55 from reference angle points of workpart on drive surface. this application describes how to make tools exchange algortihm on CNC milling programming based on final point of tools at workpart machining processes
Laminated Aluminum Foil Insulator Experiment With Noise Shielding Capability For Myoelectric Signal Socket Processing Device Quraish, Quraish; Susmartini, Susy; Priadythama, Ilham
Performa: Media Ilmiah Teknik Industri Vol 13, No 2 (2014): PERFORMA Vol. 13 No. 2, September 2014
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.432 KB) | DOI: 10.20961/performa.13.2.10070

Abstract

This research investigates the problem of electromagnetic noise on myoelectric device. This myoelectric device has a low pass filter response (Butterworth type) with cut-off frequency (fc) 6 Hz and passing 8 volt signal. The passed signal, then amplified by a differential amplifier for 150 times into 1,2 Volt (20% noise captured system). So we require an approach to electromagnetic shielding to reduce interference from the outside that enter into the device system. In this study utilizing an experimental design using full factorial experiment methods to determine the effect of the type of bahan, the frequency response, and the interaction to the performance of shielding. The experiment results showed that each element and their interactions, significantly affected the value of the shielding performance. Aluminium foil air cell bubble has the highest shielding performance with the average performance of shielding efficiency of 94,80887 %. This bahan used for shielding socket design proposal which based in the Wisconsin department of health service and American heart association standard.
Perancangan Ulang Kursi Roda Manual Menggunakan Kriteria Standar ISO 7176-5 Pradita, Ayu Anggit; Priadythama, Ilham; Susmartini, Susy
Performa: Media Ilmiah Teknik Industri Vol 17, No 1 (2018): PERFORMA Vol. 17, No 1 Maret 2018
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (537.217 KB) | DOI: 10.20961/performa.17.1.19068

Abstract

In Indonesia, the Ministry of Health of the Republic of Indonesia (2014) states that the percentage of persons with disabilities who have limitation in walking and climbing up the stairs are 10.26% from the total of disable people. Currently, the equipment which is used frequently is wheelchair, nevertheless, the availability of the wheelchair that fulfill the standard of ISO 7176-5 still deeply limited because it’s pricey and should be imported. In Indonesia, the distributed wheelchair which competes in the commercial market is dominated by Chinese product and some local makers. The purpose of the research is to redesign manual wheelchairs which fulfill the criteria ISO 7176-5. The research is using ISO 7176-5 as a reference design to redesign the main frames of initial wheelchair. The research is begun by comparing and observing 2 types of wheelchairs A and B in commercial market. The 2 wheelchairs (A and B) are measured and compared based on the ISO 176-5 dimension which consists of 27 items. From the measurement and comparison, the wheelchair A is chosen as referenced design because they have more adjustment amount. After that, the dimensions of wheelchair A will be adjusted to ISO 7176-5 and will be tested with Autodesk Inventor software to determine the strength of the main frames. The conclusion of the research is that the result of the suggested frame consist of displacement, von misses stress and safety factor which is revealed as safe. In addition, the dimension of the suggested wheelchair fulfill ISO 7176-5 which guarantees safety and comfort for the users. 
PERANCANGAN ULANG ALAT MESIN PEMBUAT ES PUTER BERDASARKAN ASPEK ERGONOMI Arta, Adhi Dwi; Astuti, Rahmaniyah Dwi; Susmartini, Susy
Performa: Media Ilmiah Teknik Industri Vol 11, No 2 (2012): PERFORMA Vol. 11, No 2 September 2012
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.827 KB) | DOI: 10.20961/performa.11.2.13940

Abstract

Facts in the real condition is show that the little entrepreneur using the conventional devices in small village for make “es puter”, causes the worker have many complaint while making “es puter”. Appear this complaint can make musculoskeletal injury for the worker. As a result of this activity there are many complaints with the most dominant of complaints occur in the neck, arm, wrist, knee, and ankle.That injuries happen while revolve the ice tube, the process experience friction with ice in the outside of the tube. In this research have done identify desire and expectation of worker had done with interview, and the result is translated become necessity and become a concept of design device. The second phase is determinate device dimension base on anthropometric dimension. The last phase is making machining “Es Puter”. The result is “es Puter” machine with revolve mechanism using motor with 1400 rpm, is reduction became 70 rpm, and the production cost Rp 3.557.400,00. This device giving repair in processing position in making “Es Puter” then can decrease musculoskeletal injury, as well as ave safety, comfortable, and can shorten production time became 1 hour.
Penerapan DFMA untuk Low Cost High Customization Product Priadythama, Ilham; Susmartini, Susy; Nugroho, Alviandi Wahyu
Performa: Media Ilmiah Teknik Industri Vol 16, No 1 (2017): PERFORMA Vol. 16, No 1 Maret 2017
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (882.84 KB) | DOI: 10.20961/performa.16.1.12740

Abstract

Design for Manufacturing and Assembly (DFMA) is a method to evaluate the design of productwith considering the ease of manufacture process and the assembly process. UNS LPPD Hand isprosthetic hand with the function and shape that has likely the original hand man. UNS LPPD Hand is developed by the Laboratory Planning and Product Design of Sebelas Maret University (Laboratorium P3 UNS). From the conceptual design of prosthetic finger by Cahyadin (2016), the prototype can't do the movement flexed according with the design objectives and there are some components that not required. Therefore, there are some components that must be modified or eliminated. The modified component is phalanx of media and eliminated components are short and long pin holder The result is improvement of design prosthetic finger that 2 components are fixed and 4 components are eliminated, and reducing the process from 99 steps to 79 steps
Pemilihan Desain Prosthetic Jari Tangan Berdasarkan Mekanisme Sistem Penggerak Cross Bar dan Cross Cable terhadap Besar Gaya Tarik Dinamis Prosthetic Jari Tangan Susmartini, Susy; Priyadithama, Ilham; Herdiman, Lobes
Performa: Media Ilmiah Teknik Industri Vol 10, No 2 (2011): PERFORMA Vol. 10 No 2, September 2011
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (131.504 KB) | DOI: 10.20961/performa.10.2.13872

Abstract

The absence of the hand causes the disruption of organ function, this problem later emerged prosthetic as a tool for replacement of missing body parts. Basically prosthetic hand has two functions: as cosmetics and as a functional tool. The most important functional aspects of prosthetic hands is the ease of operation that can be seen from the magnitude of tensile force required by prosthetic hand while doing the a movement. The mechanism of motion system that is widely used by prosthetic hand is a cross cable system and cross bar system. Cross cable systems using cable to connect components that act as links knuckles on hand, when the withdrawal event of the cable happened, the cable will be tightened and the movement of the fingers may occur. Cross bar systems uses bar (rigid link) as a puller, so when withdrawal event of the rope at the end of the lever happened, the bar that connects the components with a finger lever puller will push or pull bar so that the finger will open or close. Prosthetic design significantly influence the magnitude of the dynamic tensile strength that makes it necessary to make an experiments to compare the design of motion mechanisms of cross cable systems and cross bar system, and evaluate the influence on the magnitude of the dynamic tensile force at the time of movement, so it can represent the natural movement of normal human fingers.
Pengembangan Sistem Pendukung Keputusan untuk Pengendalian Persediaan Bahan Baku ( Studi Kasus Pada PT. Ready Mix Concrete ) Azmi, Fauzan; Susmartini, Susy; -, Yuniaristanto
Performa: Media Ilmiah Teknik Industri Vol 2, No 2 (2003): PERFORMA Vol. 2, No. 2 September 2003
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.216 KB) | DOI: 10.20961/performa.2.2.11120

Abstract

PT. RMC, a company based on make to order which producing ready mixed concrete has not applied acertain ordering method yet. Giving letter of delivery and job-mix to logistics department close to production execution time make logistics department cannot determine requirement of material. Beside that, logistics department works based on work instrument and manual recording so that there are still found many problems which effect on pile up or shortage.It needs a method which can provide the decision about material ordering time and quantity so that result minimum total inventory cost. The method is developed as Decision Support System (DSS). It uses Material Requirement Planning concept (MRP) with daily phased. Determining economic ordering lot size uses static Economic Order Quantity (EOQ) with safety stock (SS). DSS determine Q order if inventory decrease until reach Reorder Point (ROP). With DSS, input and edit data become easier thanbefore.In validation, the proposed method is compared with the current method that result the total inventory cost of proposed method lower than current method. The cost reduction is 10,31 % or Rp. 23.351.790,97439 per month.
Perbaikan Sistem Sambungan Strut dan Ring pada Fiksator Eksternal Berbasis Hexapod untuk Meningkatkan Fleksibilitas Rekonstruksi Tulang Dwi Wijaya, Yustine Intan; Susmartini, Susy; Herdiman, Lobes
Performa: Media Ilmiah Teknik Industri Performa: Media Ilmiah Teknik Industri, Vol. 18 No.1, 2019
Publisher : Program Studi Teknik Industri, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.18.1.25134

Abstract

Fiksator eksternal adalah alat medis yang mendukung proses rekonstruksi tulang akibat kelainan bentuk tulang. Terdapat banyak fiksator eksternal berbasis hexapod dengan beragam desain, salah satu Taylor Spatial Frame (TSF) dengan sistem sambungan menggunakan universal joint. Sejauh ini, TSF tipe replika memiliki jangkauan sudut strut-ring sebesar 30°, sehingga fleksibel dan mampu mengkoreksi tulang dengan sudut-sudut ekstrim. Namun TSF memiliki kelemahan, yaitu adanya backlash pada komponen universal joint. Penelitian ini bertujuan untuk memperbaiki sistem sambungan strut-ring agar terbebas dari backlash, aman bagi pengguna dan mampu menghasilkan jangkauan sudut strut-ring sebesar 30°. Perbaikan dilakukan dengan menggunakan metode generic product development process. Hasil yang didapatkan berupa empat konsep perbaikan alternative yang selanjutnya diuji menggunakan finite element untuk dapat mengetahui nilai safety factor dan displacement. Salah konsep terbaik berhasil dihasilkan dengan jangkauan sudut strut-ring sebesar 32,04° dan aman bagi pengguna. Penelitian ini dapat berguna dalam pengembangan lebih lanjut dari fiksator eksternal berbasis hexapod.