Hamed Salmanzadeh

[ 1 ] - The Effects of Grasp Conditions on Maximal Acceptable Combined Forces (pushing and pinch forces) for Manual Insertion of Snap Fasteners

The objective of this study was to determine the effects of grasp conditions (types of grasp, grasp width, glove and types of coupling) on maximal pushing force (MPF) and required pinch force (RPF) during snap fit assembly. The results indicated that the type of grasp, the type of coupling and wearing gloves have significant (p

[ 2 ] - تخصیص کارهای ساختمانی میان کارگران با هدف کمینه سازی ریسک کاری کل بر پایه مدل دوزیس

Background and aims: Evaluation of physical pressure during different working conditions is one of the important and applicable aspects of human factors engineering at industrial and construction environments. accurate calculation of physical pressure helps to improve working condition and status of workers. On of the challenges that experts faced with is the optimal assignment of human resourc...

[ 3 ] - The Influence of Effective Factors on Mechanical Stress on Fingertips During Snap-fit Assembly

Objectives: Nowadays, Snap-fits are used in the automotive industry as a proper alternative for mechanical joints, cabling joints, and car interior lining joints. Due to the special form of these joints, which are assembled manually, the contact area between Snap-fits and the worker’s fingertips can be too small. This can cause skin pain on the worker’s  fingertips. Therefore, ...

[ 4 ] - Fuzzy Group Decision Making Approach for Ranking Work Stations Based on Physical Pressure

This paper proposes a Fuzzy Group Decision Making approach for ranking work stations based on physical pressure. Fuzzy group decision making approach allows experts to evaluate different ergonomic factors using linguistic terms such as very high, high, medium, low, very low, rather than precise numerical values. In this way, there is no need to measure parameters and evaluation can be easily ma...

[ 5 ] - بررسی تأثیر شکل هندسی، اندازه و خواص مکانیکی کلیپس بر میزان تنش‌ های ایجاد شده در انگشت شست در حین مونتاژ

Introduction: Nowadays, Snap-fits have many applications in the automotive industry, especially in assembly lines. They are used instead of the mechanical joints such as bolts, the cabling joints, and the car interior lining joints. Due to the special form of these fasteners, they are usually assembled manually. So, the form of clips’ contact area and the sharpness of the Snap-fits may cause th...

[ 6 ] - سیستم قیمت گذاری و تولید بهینه زنجیره تامین یکپارچه در شرایط عدم قطعیت حساس به قیمت

[ 7 ] - کاربرد روش PERA در تجزیه و تحلیل و طراحی مجدد وظایف چرخه ای در یک شرکت خودروسازی

Background and aims: Postural Ergonomics Risk Assessment (PERA) is an ergonomic assessment method to detect the major causes of the cyclic work by focusing on the stressful postures analysis in the form of a task analysis. Because of its ability to detect the ergonomic risk sources in work cycles, this study aims to use this method as a systematic ergonomic analysis tool in order to redesign th...