The University of JordanFaculty of Engineering & TechnologyMechanical Engineering Department

Applications in Mechanical Design (0904538)Second Semester 2013/2014

Foldable WalkerBy:

AHMAD NAZIH , FARIS ALMUGHRABI , MAHMOUD ALNAQIB &MOHAMMAD ALBUGUQ

11 May 2014

Three design steps that follow:

Step 1: Design Requirements.

Step 2: Design Specifications .

Step 3: Loads & Mechanical Analysis.

Step 1:Design Requirements

1- Width Adjustable Which serving adults, kids and bariatric in width range (36-64)cm with input control while in use.

2- Height-adjustable To fit the appropriate length which serve patient height (110- 186) cm.

3- Sturdy To ensures maximum strength while remaining lightweight.

4- Load Capacity [180 kg]

5- Weight Does not exceed 3 kg.

Step 2:Design Specifications

1- Width Adjustable

A frame that has width spread (36-64)cm, in 4 cm increments

Step 2:Design Specifications

Mechanism:

Width Improver by Linear-Pull Brake mechanism

Step 2:Design Specifications

Leg’s Length= 42cm, 1 cm increments

2- Height-Adjustable

3- Structure Aluminum alloy hollow cylinder construction

With high strength steel buttons.

Step 2:Design Specifications

:CREOModel

Step 2:Design Specifications

Dimensions of parts :

Store Dimensions: 74 x 45 x 36

Step3: Loads & Mechanical Analysis

Bearing Stress:

>>dpin = 5.3 mm

Shear Stress:

>>dpin = 2.04 mm

Bending Moment:

>>by Finite Element Analysis, Abaqus Software

Software & References 1- Mechanics of Materials James M. Gere edition 2009

2- Mechanical Engineering Design, Shigley, Ninth Edition.

3- PTC Creo Parametric 2.0 Software.

4- Abaqus CAE Software.