Operation management of Tom Pulling Toys, a toy manufacturing company Essay

Operation management of Tom Pulling Toys, a toy manufacturing company - Essay Example The firm observed in the study is Tom Pulling Toys, an English toy manufacturing firm based in China. For a long time, it enjoyed positive market response maintaining the mantle of being at the helm of market leadership. However, as China develops and more toy manufacturing firms get set up, there appears to be a problem. The company’s performance has hit a snag in the recent past. This negative market response is attributed to the quality of the products that the firm produces. There is a great likelihood that the company has not been producing poor quality toys and this is evident in the high number of toys that clients return to the company with quality related defects. The fact that clients return defective toys to the shops was a clear indication of the fact that the company had been producing low quality toys. The problem under investigation, therefore, is to determine whether the speculation, that the production of poor quality toys is responsible for the poor performan ce of the company recently, is true. This is based on the fact that clients have been returning semi standard goods made by the company. In an attempt to determine this, the company is employing a quality regulating tool that is new to the firm and the market. This has been christened the statistical process control. To effectively carry out the test on the quality of the products from the company, the research used random sampling of the toys and one aspect of the quality that was put under tight scrutiny was the colour of the toys. For a period of thirty days, the research was run on the colour defective toys with each day having a total of two hundred toys being collected. For the very thirty days, three toys were randomly collected and their heights measured and recorded in centimetres. The study carried out on colour revealed major colour defects on the toys with lots of clients returning to the firm defective toys. Colour is an important aspect of marketing; the marketing depa rtment ought to have put into consideration the effects defective colours would have had on the company’s product. Below is a table showing fifteen days and an average of 3% of returned toys on the basis of colour alone. Sample Number Number Of Defectives Units Inspected Percentage Of Deformities 1 3 200 1.5 2 6 200 3 3 7 200 3.5 4 6 200 3 5 6 200 3 6 9 200 4.5 7 2 200 1 8 2 200 1 9 7 200 3.5 10 8 200 4 11 9 200 4.5 12 11 200 5.5 13 3 200 1.5 14 5 200 2.5 15 6 200 3 Discussion and Recommendations Quality plays an important role in determining the market position that a firm holds. In the past, Tom Pulling Toys was known as the quality leader in the market which meant greater revenue collection. However, competition is an aspect of business and as it increases so should a company find leverages over competitors which for Tom pulling company would have been the quality of their products. Unfortunately, the firm was reluctant in checking into this and the result was the declinin g financial returns. The study revealed that, in deed, the firm was not taking into account the

Speed control of DC and AC machines Lab Report Example | Topics and Well Written Essays - 2500 words

Speed control of DC and AC machines - Lab Report Example Steady-state conditions are to be used in the case where the DC motor needs to be excited separately. Loading conditions should be varied and tested. The rectifiers available include the single-phase half controlled bridge rectifier containing a flywheel diode. Cases of firing angle in the setup that is used above ought to be set to a fixed value. Voltage and resistance variation affect characteristics of the armature while flux regarding the pole affects magnetic properties of the motor. It sets the base for the speed control methods as armature control method and the field control methods. Resistance variation is achieved via connecting an external resistance with the voltage supply to the motor armature. Losses being negligible are ignored. Alternatively speed control can be achieved by a rheostat resistance in series with the armature of the motor. Magnetic properties of the motor can be varied using a field diverter method. Armature control method has superiority compared to the other methods because it has the abilities to offer fine control of the motor speed, a unified acceleration, and the regulation properties accompanying speed control are superior. On the contrary, the method requires standardized patterns that increases the cost and delivers low efficiency when carrying lighter loads. The circuit, as stated above, is made up of controlled and the uncontrolled rectifiers. Diode as components of the design and the freewheeling operations occurs regardless of allowing a negative voltage output. Clamping at zero does not guarantee the rectification of negative voltage hence a half controlled. The positive voltage levels are made use via the rectifier while the negative voltages are cut-off hence unnecessary. The setup is composed of diodes and the SCRs. With Vin being positive, triggering of SCR S1 occurs at the firing angle determined and denoted as a. current flow will begin from SCR S1 and then flow through