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Maes Rhaglen/Programme Area: Technology TEITL Y CWRS CÔD UNED(AU) ENW /Rhif Adnabod HNC in General Engineering Teitl/Cyf Aseiniad Criteria Graddio Assignment Number 1 Statics P3 P1 P2 TZG104417 Unit 102 Mechanical Principles and Applications COURSE TITLE CODE UNIT(S) NAME /ID No. Assignment Title/ Ref. Grading Criteria M1 Enw’r Tiwtor Dyddiad Gosodwyd Aseiniad Dyddiad Cyflwyno Cytunwyd ar Estyniad gan T J Coley 13 October 2014 24 November 2014 Yr wyf yn datgan mai gwaith fy hun yw’r hyn a gyflwynir a gall y Coleg wirio fy ngwaith am lên-ladrad I declare that the work presented is my own and that the College may check my work for plagiarism Name of Tutor Date Assignment Set Submission date Extension agreed by Dyddiad Date Llofnodwyd Signed Adborth asesiad/Assignment feedback Ailgyflwyno yn dilyn adborth /Feedback following resubmission Criteria Graddio a Dyfarnwyd/ Grading Criteria Awarded: Criteria Dyddiad/Date Dyddiad Derbyn Gwaith Work received date Dyddiad ailgyflwyno/ Resubmission date Llofnod y tiwtor Dyddiad Tutor Signature Date Maes Cwricwlwm/Curriculum Area: Technoleg/ Technology Maes Rhaglen/Programme Area: Peirianneg/Engineering Pass Grading criteria:-To achieve a pass grade the evidence must show that the learner is able to: P1 calculate the magnitude, direction and position of the line of action of the resultant and equilibrant of a non-concurrent coplanar force system containing a minimum of four forces acting in different directions Feedback:- P2 calculate the support reactions of a simply supported beam carrying at least two concentrated loads and a uniformly distributed load Feedback:- P3 calculate the induced direct stress, strain and dimensional change in a component subjected to direct uni-axial loading and the shear stress and strain in a component subjected to shear loading Feedback:- M1 calculate the factor of safety in operation for a component subjected to combined direct and shear loading against given failure criteria Feedback:- N.B. To obtain a merit, a pass must first be achieved, likewise, to obtain a distinction, a merit must be achieved. The assignments will be contributory to your grading, but will not provide full opportunity to be graded individually. Document1 Achieved Maes Cwricwlwm/Curriculum Area: Technoleg/ Technology Maes Rhaglen/Programme Area: Peirianneg/Engineering BTEC HIGHER NATIONAL CERTIFICATE IN GENERAL ENGINEERING MECHANICAL PRINCIPLES Assignment # 1 This assignment consists of questions covering the following criteria: - P1, P2, P3, M1 It is essential that you express yourself clearly and concisely both in a communication and a mathematical sense. Question 1 (Criterion P1) Refer to the force system on the plate shown in Figure Q1. State the ‘type’ of system. (i) Graphically determine the magnitude and direction of the resultant. (ii) Using an analytical method confirm your answer to part (i) and also determine the perpendicular distance of the resultant from point A. Question 2 (Criterion P2) The beam shown in Figure Q2 has a UDL of 380kN/m. Calculate the reactions at the simple supports. Document1 Maes Cwricwlwm/Curriculum Area: Technoleg/ Technology Maes Rhaglen/Programme Area: Peirianneg/Engineering Question 3 (Criterion P3) (A) A 2.6m long steel towing bar of solid circular section diameter 45mm is expected to carry a maximum load of 270 kN. The factor of safety is 4; and for the steel the UTS is 540 MNm-2 and the Modulus of Elasticity is 200 GNm-2. (i) Calculate the actual towing capacity of the bar and state whether the proposed limit is acceptable. (ii) Determine the extension of the bar under the maximum proposed load. (B) The structural member shown in Figure Q3 is joined by a single 10mm diameter rivet. (i) For the 45kN tensile load applied as shown determine the shear stress in the rivet Question 4 (Criterion M1) For the rivet in Question 3 B: (i) Using a value of 320 MNm-2 for the UTS of the rivet material, calculate the Factor of Safety at the load shown. (iii) It is recommended for this application and under this tensile load that the Factor of Safety applied should be 4. Comment on this with possible suggestions based on the value of the Factor of Safety found in part (i). You should base your suggestions on scientific principles and on practical considerations. Document1 Maes Cwricwlwm/Curriculum Area: Technoleg/ Technology Maes Rhaglen/Programme Area: Peirianneg/Engineering Figure Q1 42N 52N 60o 28o Plate 0.8 square Point A 45o 64N 37N Figure Q2 0.8m 1.6m 410kN Document1 0.6m 650kN Maes Cwricwlwm/Curriculum Area: Technoleg/ Technology Maes Rhaglen/Programme Area: Peirianneg/Engineering Fig Q3 44o 45kN Document1 45kN Maes Cwricwlwm/Curriculum Area: Technoleg/ Technology Maes Rhaglen/Programme Area: Peirianneg/Engineering Submission Evidence The assignment: - Assignment 1 Statics Submitted by ……………………………………………….. On …………………………………………… Was received by …………………………………………….. On …………………………………………… Document1