The document describes the design of a sustainable foam core chair that weighs less than 500g and can support an 81kg person without fasteners. Stress analysis was conducted to determine areas of high stress and remove unnecessary materials. The final design uses truss structures, gussets, and fillets to increase rigidity while reducing weight. Testing showed the chair supported 81kg without failing.
Strength Core Conditioning for TriathlonTony Fahkry
This presentation is geared to the triathlete looking to improve their performance in all three disciplines. The central theme is how to improve the core in order to improve performance, whilst reducing injury. The presentation not only deals with the fundamentals of core conditioning, but addresses why dynamic stretching and three dimensional movement patterns are essential to the athletes overall performance.
The most comfortable and ergonomic office chair is the one which helps us to concentrate more on the work rather than the problems of back ache or body pains. Ample Seating’s Office chairs series are in the design concept with keeping in mind the comfort aesthetics. The line of the chairs are categorized into Executive chairs, Staff chairs, Visitor Chairs, Mesh chairs Leather chairs and few others. We supply office chairs in Hyderabad, Ahmedabad, Vadodara and all most all over India. See more http://amplechairs.co.in
Strength Core Conditioning for TriathlonTony Fahkry
This presentation is geared to the triathlete looking to improve their performance in all three disciplines. The central theme is how to improve the core in order to improve performance, whilst reducing injury. The presentation not only deals with the fundamentals of core conditioning, but addresses why dynamic stretching and three dimensional movement patterns are essential to the athletes overall performance.
The most comfortable and ergonomic office chair is the one which helps us to concentrate more on the work rather than the problems of back ache or body pains. Ample Seating’s Office chairs series are in the design concept with keeping in mind the comfort aesthetics. The line of the chairs are categorized into Executive chairs, Staff chairs, Visitor Chairs, Mesh chairs Leather chairs and few others. We supply office chairs in Hyderabad, Ahmedabad, Vadodara and all most all over India. See more http://amplechairs.co.in
An Ergonomic chair is configured to suit the way
body and mind interact with the workplace
environment. The chair adjusts to our natural
body posture and provides enhanced thermal
comfort at all times, catering to both physical and
psychological needs of an individual.
Lecture on basic squat technique and other exercises for strength and conditioning. Lecture for HPE 345, Strength Programming for Sport. Wilmington College, Ohio.
Hello everyone I upload this ppt for purpose of geting of actually knowledge of what is hipjoint replacement its type and after of surgery which exercise is usefull for come back to functional activities with evidence base treatmnet.Thank you.
This was a working presentation aimed at S3 pupils (14yrs) during a PRODUCT DESIGN class. They were working through the design process and it ended with them testing out various types of chairs in terms of ergonomics etc. Feel free to chop and change it...
Shoulder Workshop at CrossFit U West Melbourne:
Overview of shoulder anatomy and function, common complaints in the CrossFit athlete and strategies to help prevent injury, improve performance and enhance awareness of general shoulder health.
These test are good if you want to know fitness level of you players.
you can add other test as well according to your players condition or player performances.
I am the authorized K-12 representative in South Carolina for eInstruction by Turning Technologies
Bill McIntosh
SchoolVision Inc..
Authorized South Carolina K-12 Consultant for eInstruction / Turning Technologies
Phone :843-442-8888
Email :WKMcIntosh@Comcast.net
Twitter : @OtisTMcIntosh
SchoolVision Website on Facebook: https://www.facebook.com/WKMIII
Website : www.einstruction.com
Turning Technologies | 255 West Federal Street | Youngstown, OH Main: 330-746-3015 | Toll Free: 866-746-3015 | Fax: 330-884-6065
www.TurningTechnologies.com
An Ergonomic chair is configured to suit the way
body and mind interact with the workplace
environment. The chair adjusts to our natural
body posture and provides enhanced thermal
comfort at all times, catering to both physical and
psychological needs of an individual.
Lecture on basic squat technique and other exercises for strength and conditioning. Lecture for HPE 345, Strength Programming for Sport. Wilmington College, Ohio.
Hello everyone I upload this ppt for purpose of geting of actually knowledge of what is hipjoint replacement its type and after of surgery which exercise is usefull for come back to functional activities with evidence base treatmnet.Thank you.
This was a working presentation aimed at S3 pupils (14yrs) during a PRODUCT DESIGN class. They were working through the design process and it ended with them testing out various types of chairs in terms of ergonomics etc. Feel free to chop and change it...
Shoulder Workshop at CrossFit U West Melbourne:
Overview of shoulder anatomy and function, common complaints in the CrossFit athlete and strategies to help prevent injury, improve performance and enhance awareness of general shoulder health.
These test are good if you want to know fitness level of you players.
you can add other test as well according to your players condition or player performances.
I am the authorized K-12 representative in South Carolina for eInstruction by Turning Technologies
Bill McIntosh
SchoolVision Inc..
Authorized South Carolina K-12 Consultant for eInstruction / Turning Technologies
Phone :843-442-8888
Email :WKMcIntosh@Comcast.net
Twitter : @OtisTMcIntosh
SchoolVision Website on Facebook: https://www.facebook.com/WKMIII
Website : www.einstruction.com
Turning Technologies | 255 West Federal Street | Youngstown, OH Main: 330-746-3015 | Toll Free: 866-746-3015 | Fax: 330-884-6065
www.TurningTechnologies.com
Try our Wheelchair Cushion to reduce back pain and pressure,Rhonda McCoy
New Medical Solutions presents our new, Patented Wheelchair SEET cushion. Check out the Key Features:
Reduces Pressure
•Reduces Back Pain
•Keeps Seating Cooler
•Evenly Distributes Weight
•Enhances Blood Flow
•Dynamic Contouring Improves Posture and Alignment
•Waterproof / Dishwasher Safe
It is available in 3 sizes ergoSEET, ergoSEET Plus, wheelchairSEET
We would love to help you sit more comfortably! Give us a call and let us know how we can assist! 760-415-0840
Ergonomic Design of an office chair for people working in office for long hours sitting in a chair. It improves the efficiency and productivity of the employees as well as the company.
3 Dimensional Virtual Modelling of Human Femur Bone with Prosthetic Plate and...INFOGAIN PUBLICATION
Femur bone is the longest and stronger bone in the human body. This bone is contained a linear-elastic, isotropic and homogeneous material of calcium phosphate. It needs to support maximum weight of the body in between hip joint and knee joint during different mode of body posture. Firstly 3 dimension geometric model of femur bone, prosthetic plate and screw is generated in Solid works CAD software which seems to define high mode of difficulty for generating the bone model. The objective of femur bone CAD model is identified the maximum stresses and deformation zone by applying the static load into the finite element ANSYS software. Further femur bone is provided a single crack at maximum stressed zone implanted with prosthetic bone plate and screws.
ESMS (Ergonomically Suited Molded Seat Seat For Scoliosis)Rohan Gupta
This presentation was published in January 2018 during the National Conference of OPAI. This presentation includes a research work for a 15 yr old fixed scoliotic patient to cure and atleast prevent from further progression of the curve by providing him a customised molded seat acc to the nature of his deformity . We name this as ESMS.
Standing for hours causes distress to the lower back of the body, to reduce such
kind of aches the chair-less chair came into existence. The chair-less chair also called
as portable chair is a wearable, ergonomic, mechanical, therapeutic device. The
ability to sit anywhere anytime is made possible by this wearable device. The chairless
chair can be worn as an exoskeleton on to our body and can walk normally when
not used. It is an equipment of convenience and comfort, because it acquires minimal
bearable weight. It is optimized by workers who stand and work for a very long time,
especially on conveyor belts and other industrial related works. It helps in reliving
back pain, limb ache, and tiredness and produces an increase in the efficiency of the
worker. This paper portraits the design of the prototype model which was made from
scrap, the mechanism of the portable chair, its applications. Future ideas and
challenges are also incorporated in this paper.
1. Sustainable Foam Core Chair
Gerard Simon Prosper
Abstract— This report describes how to design a lightweight
chair which weighs less than 500g and able to support an 81kg
person without using any glues, tapes and fasteners. Stress
analysis was used to determine the concentration of stress and
to help to get rid of unnecessary parts of the chair and to help
to get rid of unnecessary parts of the chair. Truss structures,
gussets, and fillets are used to keep the weight down and rigidity
up. These are also added to remove concentrations of stress.
Final design is able to support an 81kg person without the legs
and back support failing.
I. INTRODUCTION
This project requires a formal understanding of the term
sustainability. Sustainability or sustainable is defined by
Oxford Dictionary as ’Conserving an ecological balance
by avoiding depletion of natural resources’. In order to
be sustainable, efficiency has to be fully utilized so that
minimum input is used to maximize the output. The process
from input to output should done in the right steps to prevent
use of excessive material and hence, keeping the weight of
the chair to a minimum weight.
The final design of the chair ( see Fig 1 ) is able to
support a weight of an 81kg person. Requirements for the
height of the chair is set up to be between 480mm to
530mm, the seat depth and width to be between 380mm
to 420mm, and the back height to be between 250mm
to 450mm. This paper is organized as follows, Section 2
describes the concept generation and evaluation, Section 3
describes analysis, Section 4 describes experimental results,
Section 5 is a discussion, and Section 6 is a conclusion.
II. CONCEPT GENERATION AND EVALUATION
Three designs ( see Fig.2, Fig.3, Fig.4 ) and Pugh chart (
Table 1 ) were used to determine the most suitable chair. The
decision matrix contained considerations which were weight,
stability, simplicity, appearance and ease of assembly. The
first chair design was stable but it was not easy to build it
up and it will be heavy. The second chair design is much
easier to assemble, stable and weighs less. The third chair
design is stable and weighs less but not easy to assemble.
The second chair design was picked due to it highest mark
and it also contained the most stable leg and back support,
which was able to support an 81kg person.
III. ANALYSIS
Before starting to build the chair , the lines of forces had
to be done. From that figure the base leg was changed from
a square shaped to a cross shaped leg due to a it being more
stable in this circumstance ( see Fig. 5 ). In order to get
the precise results of the stress concentration acting on the
chair, stress analysis was done by Autodesk Inventor. This
Fig. 1. Final Design
TABLE I
PUGH CHART
Criteria Design 1 Design 2 Design 3
Weight - 1 1
Stability 1 1 1
Simplicity - 1 -
Appearance 1 1 -
Ease of Assembly - 1 -
Total 3 5 2
program provides assistance to identify stress concentration
and the results showed that there were no significant failure
when it was being tested ( see Fig. 6 ). This also included
the rear end of the chair. Due to the simplicity of the design
and the connection between the 2 legs being rigid , it was
able to support the person weighing 81kg.
IV. EXPERIMENTAL RESULTS
The chair was able to support an 81kg person and no parts
failed or crashed when it was being tested. The weight of
the chair was 0.397kg which met the requirement, and the
3. Fig. 6. Stress Analysis
legs were stable enough. However the initial back support
was changed because it easily failed when someone leaned
its back. Improvement was made when an extra support was
added to the back support to ensure that it did not fail when
it was leaned upon. In order to make the chair lighter, holes
can be cut at specific places in the legs and the edges of the
seat can be trimmed.
V. DISCUSSION
In order to make the chair light, we used the least amount
of pieces that was possible. For this chair, only four foam
baords were used to cut out the necessary parts. Even though
only two pieces were used for the legs of the chair, it
managed to support of the weight of 81kg person. By doing
this, the weight was substantially reduced and it was not
necessary to cut out smaller pieces from other parts of the
chair.
VI. CONCLUSIONS
The chair design was able to meet the functional require-
ments and it exceeded the weight requirement being less than
400 grams. Being a simple yet stable chair, it was able to
support an 81kg person without failure on the legs, seat and
back support.
VII. APPENDIX
1) Engineering drawings with dimensioning
2) Bill of materials